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EnglishMOBILITY -> Wheels and tires for your BMW 5 Series 2017-2023
Wheels and tires
MOBILITY
Wheels and tires
Tire pressure specifications
In the tire inflation pressure table
Vehicle features and
options
The tire inflation pressure table, refer to
This chapter describes all standard, country-spe‐
cific and optional features offered with the series.
It also describes features and functions that are
not necessarily available in your vehicle, e.g., due
to the selected options or country versions. This
also applies to safety-related functions and sys‐
tems. When using these functions and systems,
the applicable laws and regulations must be ob‐
served.
specifications for the specified tire sizes at the
ambient temperature. The tire inflation pressure
values apply to tire sizes approved by the manu‐
facturer of the vehicle for the vehicle type.
To identify the correct tire inflation pressure,
please note the following:
▷ Tire sizes of your vehicle.
▷ Maximum speed for driving.
Tire pressure
On the Control Display
The current tire inflation pressure values and the
intended tire inflation pressure values for the
mounted tires can be displayed on the Control
Display.
General information
The tire characteristics and tire pressure influ‐
ence the following:
▷ The service life of the tires.
▷ Driving safety.
To ensure that they are displayed correctly, the
tire sizes must be stored in the system and must
have been set for the mounted tires.
▷ Driving comfort.
The current tire inflation pressure value is lo‐
cated on each tire.
▷ Fuel consumption.
The reference tire inflation pressure value is lo‐
cated in the lower area of the Control Display.
Safety information
Warning
Checking the tire pressure
General information
Tires heat up while driving. The tire pressure in‐
creases with the tire temperature.
A tire with too little or no tire inflation pressure
may heat up significantly and sustain damage.
This will have a negative impact on aspects of
handling, such as steering and braking re‐
sponse. There is a risk of accident. Regularly
check the tire inflation pressure, and correct it
as needed, for instance twice a month and be‐
fore a long trip.
Tires have a natural, consistent tire pressure
loss.
The displays of inflation devices may under-read
by up to 0.1 bar/2 psi.
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Wheels and tires
MOBILITY
Reinitialize the Flat Tire Monitor.
With Tire Pressure Monitor:
Checking using tire inflation
pressure specifications in the tire
inflation pressure table
1. Determine the intended tire inflation pressure
levels for the mounted tires.
The corrected tire inflation pressures are applied
automatically. Make sure that the correct tire set‐
tings have been made.
2. Check the tire inflation pressure in all four
tires, using a pressure gage, for example.
With tires that cannot be found in the tire pres‐
sure values on the Control Display, reset the Tire
Pressure Monitor TPM.
3. Correct the tire inflation pressure if the actual
tire inflation pressure deviates from the in‐
tended tire inflation pressure.
Tire inflation pressures up to
100 mph/160 km/h
For speeds of up to 100 mph/160 km/h and for
optimum driving comfort, note the pressure val‐
ues in the tire inflation pressure table and adjust
as necessary.
4. Check whether all valve caps are screwed
onto the tire valves.
The tire inflation pressure specifications in the
tire inflation pressure table only relate to cold
tires or tires at the same temperature as the am‐
bient temperature.
Only check the tire inflation pressure levels when
the tires are cold, i.e.:
▷ A driving distance of max. 1.25 miles/2 km
has not been exceeded.
▷ If the vehicle has not moved again for at least
2 hours after a trip.
Check the tire inflation pressure of the emer‐
gency wheel in the cargo area regularly, and cor‐
rect it as needed.
These pressure values can also be found on the
tire pressure label on the driver's door pillar.
Checking using the tire inflation
pressure specifications on the
Control Display
Do not exceed a speed of 100 mph/160 km/h.
1. "CAR"
2. "Vehicle status"
3.
"Tire Pressure Monitor"
4. Check whether the current tire inflation pres‐
sure levels deviate from the intended tire
pressure value.
5. Correct the tire inflation pressure if the actual
tire inflation pressure deviates from the in‐
tended tire inflation pressure.
After correcting the tire pressure
With runflat tires:
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Wheels and tires
MOBILITY
Tire pressure values up to
100 mph/160 km/h
Tire size
Pressure specifica‐
tions in bar/PSI
Rear: 275/35 R 19
100 V XL M+S
-
2.6 / 38
530i, 530i xDrive
Emergency wheel:
Speed up to a max. of
50 mph / 80 km/h
Tire size
Pressure specifica‐
tions in bar/PSI
T 135/80 R 18 104
M
4.2 / 60
Specifications in
bar/PSI with cold
tires
540i, 540i xDrive
Tire size
Pressure specifica‐
tions in bar/PSI
225/55 R 17 97 H
A/S
2.3 / 33
2.6 / 38
Specifications in
bar/PSI with cold
tires
245/45 R 18 100 H
XL A/S
225/55 R 17 97 H M
+S
245/45 R 18 100 H 2.2 / 32
XL A/S
2.4 / 35
245/45 R 18 100 V
XL M+S
225/55 R 17 97 H M
+S
245/40 R 19 98 H
XL A/S
2.3 / 33
2.6 / 38
245/45 R 18 100 V
XL M+S
245/40 R 19 98 H
XL M+S
245/40 R 19 98 H
XL A/S
2.3 / 33
2.6 / 38
245/40 R 19 98 V XL
M+S
245/40 R 19 98 H
XL M+S
Front: 245/40 R 19
98 Y XL
2.3 / 33
-
245/40 R 19 98 V
XL M+S
Rear: 275/35 R 19
100 Y XL
-
2.6 / 38
Front: 245/40 R 19
98 Y XL
2.4 / 35
-
-
Front:
245/35 R 20 95 Y XL
2.5 / 36
-
-
Rear: 275/35 R 19
100 Y XL
2.6 / 38
-
Rear: 275/30 R 20
97 Y XL
3.0 / 44
-
Front:
245/35 R 20 95
Y XL
2.6 / 38
Front: 245/40 R 19
98 V XL M+S
2.3 / 33
Rear: 275/30 R 20
97 Y XL
-
2.7 / 39
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Wheels and tires
MOBILITY
Tire size
Pressure specifica‐
tions in bar/PSI
Tire size
Pressure specifica‐
tions in bar/PSI
Front: 245/40 R 19
98 V XL M+S
2.3 / 33
-
Rear: 275/30 R 20
97 Y XL
-
2.7 / 39
Rear: 275/35 R 19
100 V XL M+S
-
2.6 / 38
Front: 245/40 R 19
98 V XL M+S
2.6 / 38
-
-
Emergency wheel:
Speed up to a max. of
50 mph / 80 km/h
Rear: 275/35 R 19
100 V XL M+S
2.4 / 35
T 135/80 R 18 104
M
4.2 / 60
Emergency wheel:
Speed up to a max. of
50 mph / 80 km/h
T 135/80 R 18 104
M
M550i xDrive
4.2 / 60
Tire size
Pressure specifica‐
tions in bar/PSI
Tire inflation pressures at max.
speeds above 100 mph/160 km/h
Specifications in
bar/PSI with cold
tires
Warning
In order to drive at maximum speeds in excess
of 100 mph/160 km/h, please observe, and, if
necessary, adjust tire pressures for speeds ex‐
ceeding 100 mph/160 km/h from the relevant
table on the following pages. Otherwise, tire
damage and accidents could occur.
245/40 R 19 98 H
XL A/S
2.6 / 38
2.6 / 38
245/45 R 18 100 V
XL M+S
245/40 R 19 98 H
XL M+S
For speeds over 100 mph/160 km/h and for opti‐
mum driving comfort, note the pressure values in
the tire inflation pressure table and adjust as nec‐
essary.
245/40 R 19 98 V
XL M+S
Front: 245/40 R 19
98 H XL A/S
2.6 / 38
-
Tire pressure values over
100 mph/160 km/h
Rear: 275/35 R 19
100 H XL A/S
-
2.4 / 35
530i, 530i xDrive
Without high-speed tuning feature
Front: 245/40 R 19
98 Y XL
2.6 / 38
-
-
Rear: 275/35 R 19
100 Y XL
2.4 / 35
-
Front:
2.9 / 42
245/35 R 20 95
Y XL
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Wheels and tires
MOBILITY
Tire size
Pressure specifica‐
tions in bar/PSI
Tire size
Pressure specifica‐
tions in bar/PSI
Specifications in
bar/PSI with cold
tires
Specifications in
bar/PSI with cold
tires
225/55 R 17 97 H
A/S
2.8 / 41
3.2 / 46
225/55 R 17 97 H M 2.8 / 41
+S
3.2 / 46
245/45 R 18 100 H
XL A/S
245/45 R 18 100 V
XL M+S
225/55 R 17 97 H M
+S
245/40 R 19 98 H
XL M+S
245/45 R 18 100 V
XL M+S
245/40 R 19 98 V
XL M+S
245/40 R 19 98 H
XL A/S
2.8 / 41
2.9 / 42
Front: 245/40 R 19 2.6 / 38
98 Y XL
-
245/40 R 19 98 H
XL M+S
Rear: 275/35 R 19
100 Y XL
-
2.8 / 41
-
245/40 R 19 98 V XL
M+S
Front:
245/35 R 20 95
Y XL
2.9 / 42
Front: 245/40 R 19
98 Y XL
2.3 / 33
-
Rear: 275/30 R 20
97 Y XL
-
3.1 / 45
-
Rear: 275/35 R 19
100 Y XL
-
2.6 / 38
Front: 245/40 R 19 2.8 / 41
98 V XL M+S
Front:
2.5 / 36
-
245/35 R 20 95 Y XL
Rear: 275/35 R 19
100 V XL M+S
-
2.9 / 42
Rear: 275/30 R 20
97 Y XL
-
3.0 / 44
-
Emergency wheel:
Speed up to a max. of
50 mph / 80 km/h
Front: 245/40 R 19
98 V XL M+S
2.8 / 41
-
T 135/80 R 18 104
M
4.2 / 60
Rear: 275/35 R 19
100 V XL M+S
2.9 / 42
540i, 540i xDrive
Without high-speed tuning feature
Emergency wheel:
Speed up to a max. of
50 mph / 80 km/h
T 135/80 R 18 104
M
4.2 / 60
With high-speed tuning feature
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Wheels and tires
MOBILITY
Tire size
Pressure specifica‐
tions in bar/PSI
Tire size
Pressure specifica‐
tions in bar/PSI
Specifications in
bar/PSI with cold
tires
Specifications in
bar/PSI with cold
tires
245/45 R 18 100 H 2.6 / 38
XL A/S
2.9 / 42
225/55 R 17 97 H
M+S
2.6 / 38
2.9 / 42
2.9 / 42
225/55 R 17 97 H M
+S
245/45 R 18 100 V
XL M+S
245/45 R 18 100 V
XL M+S
245/40 R 19 98 H
XL M+S
3.1 / 45
245/40 R 19 98 H
XL A/S
2.9 / 42
3.1 / 45
245/40 R 19 98 V
XL M+S
245/40 R 19 98 H
XL M+S
Front: 245/40 R 19 2.6 / 38
98 Y XL
-
245/40 R 19 98 V
XL M+S
Rear: 275/35 R 19
100 Y XL
-
2.9 / 42
-
Front: 245/40 R 19
98 Y XL
2.6 / 38
-
-
Front:
245/35 R 20 95
Y XL
2.9 / 42
Rear: 275/35 R 19
100 Y XL
2.9 / 42
-
Rear: 275/30 R 20
97 Y XL
-
3.0 / 44
-
Front:
245/35 R 20 95
Y XL
2.9 / 42
Front: 245/40 R 19 2.9 / 42
98 V XL M+S
Rear: 275/30 R 20
97 Y XL
-
3.0 / 44
-
Rear: 275/35 R 19
100 V XL M+S
-
3.1 / 45
Front: 245/40 R 19
98 V XL M+S
2.9 / 42
-
Emergency wheel:
Speed up to a max. of
50 mph / 80 km/h
T 135/80 R 18 104
M
Rear: 275/35 R 19
100 V XL M+S
3.1 / 45
4.2 / 60
Emergency wheel:
Speed up to a max. of
50 mph / 80 km/h
M550i xDrive
Without high-speed tuning feature
T 135/80 R 18 104
M
4.2 / 60
With high-speed tuning feature
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Wheels and tires
MOBILITY
Tire size
Pressure specifica‐
tions in bar/PSI
Tire size
Pressure specifica‐
tions in bar/PSI
Specifications in
bar/PSI with cold
tires
Specifications in
bar/PSI with cold
tires
245/40 R 19 98 H
XL A/S
2.9 / 42
2.9 / 42
245/45 R 18 100 V 3.2 / 46
XL M+S
3.2 / 46
245/45 R 18 100 V
XL M+S
245/40 R 19 98 H
XL M+S
245/40 R 19 98 H
XL M+S
245/40 R 19 98 V
XL M+S
245/40 R 19 98 V
XL M+S
Front: 245/40 R 19 2.9 / 42
98 Y XL
-
Front: 245/40 R 19
98 H XL A/S
2.9 / 42
-
Rear: 275/35 R 19
100 Y XL
-
2.7 / 39
-
Rear: 275/35 R 19
100 H XL A/S
-
2.7 / 39
Front:
245/35 R 20 95
Y XL
3.3 / 48
Front: 245/40 R 19
98 Y XL
2.6 / 38
-
-
Rear: 275/30 R 20
97 Y XL
-
3.1 / 45
-
Rear: 275/35 R 19
100 Y XL
2.4 / 35
-
Front: 245/40 R 19 3.2 / 46
98 V XL M+S
Front:
2.9 / 42
245/35 R 20 95
Y XL
Rear: 275/35 R 19
100 V XL M+S
-
3.0 / 44
Rear: 275/30 R 20
97 Y XL
-
2.7 / 39
-
Emergency wheel:
Speed up to a max. of
50 mph / 80 km/h
T 135/80 R 18 104
M
Front: 245/40 R 19
98 V XL M+S
2.9 / 42
-
4.2 / 60
Rear: 275/35 R 19
100 V XL M+S
2.7 / 39
Tire marking
Emergency wheel:
Speed up to a max. of
50 mph / 80 km/h
Tire size
245/45 R 18 96 Y
T 135/80 R 18 104
M
4.2 / 60
245: nominal width in mm
45: aspect ratio in %
R: radial tire code
With high-speed tuning feature
18: rim diameter in inches
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Wheels and tires
MOBILITY
96: load bearing capacity
Y: speed code letter
Tire age
Recommendation
Regardless of the tire tread depth, replace tires
at least every 6 years.
ZR tires: reinforced radial tire for speeds exceed‐
ing 150 mph/240 km/h
Maximum tire load
Maximum tire load is the maximum permissible
weight for which the tire is approved.
Manufacture date
You can find the manufacture date of the tire on
the tire sidewall.
Locate the maximum tire load on the tire sidewall
and the Gross Axle Weight Rating – GAWR – on
the certification label on the driver door B-pillar.
Divide the tire load by 1.1. It must be greater
than one-half of the vehicle’s Gross Axle Weight
Rating – GAWR. Note, front vs. rear GAWR and
tire loads, respectively.
Designation
Manufacture date
DOT … 1921
19th week 2021
Uniform Tire Quality Grading
Quality grades can be found where applicable on
the tire sidewall between tread shoulder and
maximum section width.
Speed letter
E.g.: Treadwear 200; Traction AA; Temperature
A
Designation
Maximum speed
Q
R
up to 100 mph/160 km/h
up to 106 mph/170 km/h
up to 112 mph/180 km/h
up to 118 mph/190 km/h
up to 131 mph/210 km/h
up to 150 mph/240 km/h
up to 167 mph/270 km/h
up to 186 mph/300 km/h
above 186 mph/300 km/h
DOT Quality Grades
Treadwear
S
Traction AA A B C
Temperature A B C
T
All passenger vehicle tires must conform to Fed‐
eral Safety Requirements in addition to these
grades.
H
V
W
Y
Treadwear
The treadwear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a specified gov‐
ernment test course. E.g., a tire graded 150
would wear one and one-half, 1 g, times as well
on the government course as a tire graded 100.
The relative performance of tires depends upon
the actual conditions of their use, however, and
may depart significantly from the norm due to
variations in driving habits, service practices and
differences in road characteristics and climate.
(Y)
Tire Identification Number
DOT Code: DOT xxxx xxx 1921
xxxx: manufacturer code for the tire brand
xxx: tire size and tire design
1921: tire age
Tires with DOT codes meet the guidelines of the
U.S. Department of Transportation.
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Wheels and tires
MOBILITY
Traction
M+S
The traction grades, from highest to lowest, are
AA, A, B, and C.
Winter and all-season tires with better cold
weather performance than summer tires.
Those grades represent the tire's ability to stop
on wet pavement as measured under controlled
conditions on specified government test surfa‐
ces of asphalt and concrete. A tire marked C may
have poor traction performance.
Tire tread
Summer tires
The traction grade assigned to this tire is based
on straight-ahead braking traction tests, and
does not include acceleration, cornering, hydro‐
planing, or peak traction characteristics.
Do not drive with a tire tread depth of less than
0.12 in/3 mm, otherwise there is an increased
risk of aquaplaning.
Winter tires
Do not drive with a tire tread of less than
0.16 in/4 mm, as such tires are less suitable for
winter operation.
Temperature
The temperature grades are A, the highest, B,
and C, representing the tire's resistance to the
generation of heat and its ability to dissipate heat
when tested under controlled conditions on a
specified indoor laboratory test wheel. Sustained
high temperature can cause the material of the
tire to degenerate and reduce tire life, and exces‐
sive temperature can lead to sudden tire failure.
The grade C corresponds to a level of perform‐
ance which all passenger car tires must meet un‐
der the Federal Motor Vehicle Safety Standard
No. 109. Grades Band A represent higher levels
of performance on the laboratory test wheel than
the minimum required by law.
Minimum tread depth
Wear indicators are distributed around the tire
circumference. These wear indicators have the
legally required minimum height of
0.063 in/1.6 mm.
Warning
The temperature grade for this tire is estab‐
lished for a tire that is properly inflated and not
overloaded. Excessive speed, underinflation, or
excessive loading, either separately or in com‐
bination, can cause heat buildup and possible
tire failure.
The positions of the wear indicators are marked
on the tire sidewall with TWI, Tread Wear Indica‐
tor.
Tire damage
RSC – Run-flat tires
a circular icon containing the letters RSC marked
on the sidewall.
General information
Inspect your tires regularly for damage, foreign
objects lodged in the tread, and tread wear.
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Wheels and tires
MOBILITY
Driving over rough or damaged road surfaces, as
well as debris, curbs and other obstacles can
cause serious damage to wheels, tires and sus‐
pension parts. This is more likely to occur with
low-profile tires, which provide less cushioning
between the wheel and the road. Be careful to
avoid road hazards and reduce your speed, es‐
pecially if your vehicle is equipped with low-pro‐
file tires.
Warning
Tires can become damaged by driving over ob‐
stacles, e.g., curbs or road damage, at high
speed. Larger wheels have a smaller tire cross-
section. The smaller the tire cross-section, the
higher the risk of tire damage. There may be a
risk of accident and risk of damage to property.
If possible, avoid driving over objects or road
conditions that may damage tires, or drive over
them slowly and carefully.
Indications of tire damage or other vehicle mal‐
functions:
▷ Unusual vibrations.
▷ Unusual tire or running noises.
▷ Unusual handling such as a strong tendency
to pull to the left or right.
Changing wheels and tires
Damage can be caused by the following situa‐
tions, for instance:
Mounting and wheel balancing
Have mounting and wheel balancing carried out
by a dealer’s service center or another qualified
service center or repair shop.
▷ Driving over curbs.
▷ Road damage.
▷ Tire pressure too low.
▷ Vehicle overloading.
▷ Incorrect tire storage.
Approved wheels and tires
General information
The following properties are recommended and
approved by the manufacturer of the vehicle for
the approved wheels and tires per vehicle type
and special equipment:
Safety information
Warning
▷ Wheel and tire combinations.
▷ Rim designs.
Damaged tires can lose tire inflation pressure,
which can lead to loss of vehicle control. There
is a risk of accident. If tire damage is suspected
while driving, immediately reduce speed and
stop. Have wheels and tires checked. For this
purpose, drive carefully to the nearest dealer’s
service center or another qualified service cen‐
ter or repair shop. Have vehicle towed or trans‐
ported as needed. Do not repair damaged tires,
but have them replaced.
▷ Tire sizes.
▷ Tire brands.
You can ask a manufacturer service center or an‐
other qualified service center or repair shop
about the approved wheels and tires for the vehi‐
cle and the special equipment.
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Wheels and tires
MOBILITY
Safety information
Recommended tire brands
Warning
Wheels and tires which are not suitable for your
vehicle can damage parts of the vehicle, for in‐
stance due to contact with the body due to tol‐
erances despite the same official size rating.
There is a risk of an accident. The manufac‐
turer of your vehicle strongly suggests that you
use wheels and tires that have been recom‐
mended by the vehicle manufacturer for your
vehicle type.
For each tire size, the manufacturer of the vehi‐
cle recommends certain tire brands. The tire
brands can be identified by a star on the tire
sidewall.
Warning
Mounted steel wheels can cause technical
problems, for instance unexpected loosening of
the lug bolts and damage to the brake discs.
There is a risk of accident. Do not mount steel
wheels.
New tires
Tire traction is not optimal due to production-re‐
lated circumstances when tires are brand-new.
Drive conservatively for the first
200 miles/300 km.
Retreaded tires
Warning
Incorrect wheel/tire combinations will impair the
vehicle's handling characteristics and a variety
of system functions, such as the Antilock Brak‐
ing System (ABS) or Dynamic Stability Control.
There is a risk of accident. To maintain good
handling and vehicle response, use only tires
with a single tread configuration from a single
manufacturer. The manufacturer of the vehicle
recommends that you use wheels and tires that
have been recommended by the vehicle manu‐
facturer for your vehicle type. Following tire
damage, have the original wheel/tire combina‐
tion remounted on the vehicle as soon as pos‐
sible.
Warning
Retreaded tires can have different tire casing
structures. With advanced age the service life
can be limited. There is a risk of an accident.
The manufacturer of your vehicle does not rec‐
ommend the use of retreaded tires.
The manufacturer of the vehicle does not rec‐
ommend the use of retreaded tires.
Winter tires
General information
Winter tires are recommended for operating on
winter roads.
Although so-called all-season tires with M+S
identification provide better winter traction than
summer tires, they usually do not provide the
same level of performance as winter tires.
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Wheels and tires
MOBILITY
Maximum speed of winter tires
Storage
If the maximum speed of the vehicle is higher
than the permissible speed for the winter tires,
then attach a label showing the permissible maxi‐
mum speed in the field of vision. The label is
available from a dealer's service center or an‐
other qualified service center or repair shop.
▷ Store wheels and tires in a cool, dry and dark
place.
▷ Always protect tires against all contact with
oil, grease, and solvents.
▷ Do not leave tires in plastic bags.
▷ Remove dirt from wheels or tires.
With winter tires mounted, observe and do not
exceed the permissible maximum speed.
Runflat tires
Changing runflat tires
When changing from run-flat tires to standard
tires, it must be ensured that the vehicle contains
a compact spare tire ("donut") or tire mobility kit.
Further information is available from a dealer's
service center or another qualified service center
or repair shop.
Principle
Run-flat tires permit continued driving under re‐
stricted conditions even in the event of a com‐
plete tire pressure loss.
General information
Rotating wheels between axles
The wheels consist of tires that are self-support‐
ing, to a limited degree, and possibly special
rims.
Warning
The reinforcement of the sidewall allows the tire
to remain drivable to a restricted degree in the
event of a tire pressure loss.
Rotating tires between the axles on vehicles
with different tire sizes or rim sizes on the front
and rear axles can cause damage to the tires
and the vehicle. There is a risk of accident. Do
not rotate the tires between the axles on vehi‐
cles with different tire sizes or rim sizes on the
front and rear axles.
Follow the instructions for continued driving with
a flat tire.
Safety information
Different wear patterns can occur on the front
and rear axles depending on individual driving
conditions. The tires can be rotated in pairs be‐
tween the axles to achieve even wear. Further in‐
formation is available from a dealer's service cen‐
ter or another qualified service center or repair
shop. After rotating, check the tire pressure and
correct, if needed.
Warning
The vehicle handles differently when a run-flat
tire has insufficient or no tire pressure; for in‐
stance, reduced lane stability when braking,
braking distances are longer and the self-steer‐
ing properties will change. There is a risk of ac‐
cident. Drive moderately and do not exceed a
speed of 50 mph/80 km/h.
Storing tires
Tire pressure
Do not exceed the maximum tire inflation pres‐
sure indicated on the tire sidewall.
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Wheels and tires
MOBILITY
Identification
General information
▷ To enable continued driving, liquid sealant is
pumped into the tire, which hardens and
seals the damage from the inside.
▷ Follow the instructions on using the tire repair
set found on the compressor and sealant
bottle.
▷ Use of the tire repair set may be ineffective if
the tire puncture measures approx. 4 mm or
more.
The tires are marked on the tire sidewall with
Run-flat System Component RSC.
▷ Contact a dealer's service center or another
qualified service center or repair shop if the
tire cannot be made drivable.
▷ Do not remove foreign bodies that have pe‐
netrated the tire. Remove foreign objects only
when they are visibly protruding from the tire.
Repairing a flat tire
▷ Pull the speed limit sticker off the sealant bot‐
tle and apply it to the steering wheel.
Safety measures
▷ Park the vehicle as far away as possible from
passing traffic and on solid ground.
▷ The use of a sealing compound can damage
the wheel electronics. In this case, have the
electronics checked and replaced at the next
opportunity.
▷ Turn on the hazard warning system.
▷ Secure the vehicle against rolling away by
setting the parking brake.
▷ The compressor can be used to check the
tire inflation pressure.
▷ Turn the steering wheel until the front wheels
are in the straight-ahead position and engage
the steering wheel lock.
Overview
Storage
▷ Have all vehicle occupants get out of the ve‐
hicle and ensure that they remain outside the
hazardous area in a safe place, such as be‐
hind a guardrail.
▷ If necessary, set up a warning triangle at an
appropriate distance.
Tire repair set
Principle
With the tire repair set, minor tire damage can be
sealed temporarily to enable continued driving.
Storage for the tire repair set is provided in the
left storage compartment of the trunk.
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▷ Turn the steering wheel until the front wheels
are in the straight-ahead position and engage
the steering wheel lock.
Sealant bottle
▷ Have all vehicle occupants get out of the ve‐
hicle and ensure that they remain outside the
hazardous area in a safe place, such as be‐
hind a guardrail.
▷ If necessary, set up a warning triangle at an
appropriate distance.
Filling the tire with sealing
compound
▷ Sealant bottle, arrow 1.
▷ Filler hose, arrow 2.
Observe expiration date on the sealant bottle.
Safety information
Compressor
DANGER
If the exhaust pipe is blocked or ventilation is in‐
sufficient, harmful exhaust gases can enter into
the vehicle. The exhaust gases contain pollu‐
tants which are colorless and odorless. In en‐
closed areas, exhaust gases can also accumu‐
late outside of the vehicle. There is danger to
life. Keep the exhaust pipe free and ensure suf‐
ficient ventilation.
1
2
3
4
5
6
7
8
Sealant bottle unlocking
Sealant bottle holder
Tire pressure display
Reduce tire inflation pressure button
On/off switch
NOTICE
The compressor can overheat during extended
operation. There is a risk of damage to prop‐
erty, among other potential damage. Do not run
the compressor for more than 10 minutes.
Compressor
Connector/cable for socket
Connection hose
Safety measures
▷ Park the vehicle as far away as possible from
passing traffic and on solid ground.
▷ Turn on the hazard warning system.
▷ Secure the vehicle against rolling away by
setting the parking brake.
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4. Screw the filler hose of the sealant bottle
onto the tire valve of the nonworking wheel.
Filling
1. Shake the sealant bottle.
5. With the compressor switched off, insert the
connector into the power socket in the vehi‐
cle interior.
2. Pull filler hose completely out of the cover of
the sealant bottle. Do not kink the hose.
3. Slide the sealant bottle into the holder on the
compressor housing, ensuring that it en‐
gages audibly.
6. With standby state or drive-ready state
switched on, switch on the compressor.
Let the compressor run for max. 10 minutes to fill
the tire with sealing compound and achieve a tire
inflation pressure of approx. 2.0 bar.
While the tire is being filled with sealing com‐
pound, the tire inflation pressure may sporadi‐
cally reach approx. 5 bar. Do not switch off the
compressor in this phase.
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4. Insert the connector into the power socket in
the vehicle interior.
Checking and adjusting the tire
inflation pressure
Checking
1. Switch off the compressor.
2. Read the tire pressure on the tire pressure
display.
To continue the trip, a tire inflation pressure of at
least 2 bar must be reached.
Removing and stowing the sealant
bottle
1. Unscrew the filler hose of the sealant bottle
from the tire valve.
5. With standby or drive readiness turned on,
turn on the compressor and let it run for a
maximum of 10 minutes.
When the tire pressure does not reach at
least 2 bar, contact a manufacturer service
center or another qualified service center or
repair shop.
2. Press the red unlocking device.
3. Remove the sealant bottle from the compres‐
sor.
When a tire pressure of at least 2 bar is
reached, see Minimum tire inflation pressure
is reached.
4. Wrap and store the sealant bottle in suitable
material to avoid contamination of the cargo
area.
6. Unscrew the connection hose of the com‐
pressor from the tire valve.
Minimum tire inflation pressure is
not reached
1. Pull the connector out of the power socket in
the vehicle interior.
7. Pull the connector out of the power socket in
the vehicle interior.
8. Stow the tire repair set in the vehicle.
2. Drive 33 ft/10 m forward and back to distrib‐
ute the sealing compound in the tire.
Minimum tire inflation pressure is
reached
1. Unscrew the connection hose of the com‐
pressor from the tire valve.
3. Screw the connection hose of the compres‐
sor directly onto the tire valve stem.
2. Pull the connector out of the power socket in
the vehicle interior.
3. Stow the tire repair set in the vehicle.
4. Immediately drive approx. 5 miles/10 km to
ensure that the sealing compound is evenly
distributed in the tire.
Do not exceed a speed of 50 mph/80 km/h.
If possible, do not drive at speeds less than
12 mph/20 km/h.
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Reset the Tire Pressure Monitor again.
Adjustment
Replace the faulty tire and the sealant bottle of
the tire repair set promptly.
1. Stop at a suitable location.
2. Screw the connection hose of the compres‐
sor directly onto the tire valve stem.
Additional information:
Tire chains
Safety information
Warning
3. Insert the connector into the power socket in
the vehicle interior.
With the mounting of tire chains on unsuitable
tires, the tire chains can come into contact with
vehicle parts. There may be a risk of accident
or risk of damage to property. Only mount tire
chains on tires that are designated by their
manufacturer as suitable for the use of tire
chains.
Warning
Insufficiently tight tire chains may damage tires
and vehicle components. There may be a risk
of accident or risk of damage to property. Make
sure that the tire chains are always sufficiently
tight. Re-tighten as needed according to the
tire chain manufacturer's instructions.
4. Correct the tire inflation pressure to at least
2.0 bar:
▷ Increase tire pressure: with standby or
drive readiness turned on, turn on the
compressor and let it run for a maximum
of 10 minutes.
▷ Reduce tire inflation pressure: press the
button on the compressor.
Fine-link tire chains
5. Unscrew the connection hose of the com‐
pressor from the tire valve.
The manufacturer of the vehicle recommends
the use of fine-link tire chains. Certain types of
fine-link tire chains have been tested by the
manufacturer of the vehicle and recommended
as road-safe and suitable.
6. Pull the connector out of the power socket in
the vehicle interior.
7. Stow the tire repair set in the vehicle.
Information regarding suitable tire chains is avail‐
able from a dealer’s service center or another
qualified service center or repair shop.
Continuing the trip
Do not exceed the permissible maximum speed
of 50 mph/80 km/h.
Reinitialize the Flat Tire Monitor.
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Switching off rear axle steering
Use
The rear axle steering is switched off by specify‐
ing that tire chains are installed.
Use only in pairs on the rear wheels, equipped
with the tires of the following size:
▷ 225/55 R 17.
▷ 245/45 R 18.
▷ 245/40 R 19.
1. "CAR"
2. "Settings"
3. "General settings"
4. "Tire chains"
5. "Tire chains installed"
The wheel size and rim offset are located on the
inside of the wheel.
Follow the tire chain manufacturer's instructions.
Starting with the permissible maximum speed
with snow chains of 30 mph/50 km/h the rear
axle steering will be switched on again automati‐
cally.
Do not initialize the Flat Tire Monitor after
mounting tire chains, as doing so may result in
incorrect readings.
Do not reset the Tire Pressure Monitor after
mounting tire chains, as doing so may result in
incorrect readings.
Tire pressure monitor
When driving with tire chains, briefly activate Dy‐
namic Traction Control DTC to optimize the
drive power.
Principle
The Tire Pressure Monitor monitors the tire
pressure and issues a warning if the tire pressure
has dropped.
Maximum speed with tire chains
Do not exceed a speed of 30 mph/50 km/h when
using tire chains.
General information
Sensors in the tire valves measure the tire infla‐
tion pressure and tire temperature.
Rear axle steering during
operation with snow chains
Using the tire settings in iDrive, the system can
automatically compare the predefined target
pressures with the actual tire inflation pressures.
General information
In order to guarantee free movement of the
wheels when operating with tire chains, rear axle
steering of the integral active steering must be
switched off when tire chains are mounted.
If tires are being used that are not specified on
the tire inflation pressure details on the vehicle,
such as tires with special approval, the system
needs to be actively reset. The system will then
take over the actual tire inflation pressures as the
target pressures.
Safety information
When operating the system, also note the infor‐
mation found in the Tire inflation pressure chap‐
ter.
Warning
When rear axle steering is switched on and tire
chains are mounted, there can be contact be‐
tween tire chains and the body. There may be a
risk of accident or risk of damage to property.
With mounted tire chains, switch off the rear
axle steering.
Additional information:
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Safety information
Tire settings
General information
Warning
The tire sizes of the mounted tires can be gath‐
ered from the tire inflation pressure details on the
vehicle or directly on the tires.
The display of the target pressures is not a
substitute for the tire inflation pressure details
on the vehicle. Incorrect entries in the tire set‐
tings can lead to incorrect target tire inflation
pressure values. In this case, it cannot be guar‐
anteed that the notification of a tire pressure
loss will be reliable. There is a risk of injury and
risk of damage to property. Ensure that the tire
sizes of the mounted tires are displayed cor‐
rectly and match the details on the tires and on
the vehicle.
The tire details do not need to be re-entered
when the tire pressure is corrected.
For summer and winter tires, the tire details en‐
tered last are stored. After a tire or wheel re‐
placement, the settings of the tire sets used last
can be selected.
Changing settings
1. "CAR"
2. "Vehicle status"
Functional requirements
The following conditions must be met for the
system; otherwise, reliable message of a tire
pressure loss is not assured:
3.
"Tire Pressure Monitor"
4. "Tire settings"
5. "Tire selection"
6. "Manual"
▷ Every time a tire or wheel is changed, the
correct details on the mounted tires must be
entered in the tire settings.
7. "Tire type"
▷ "Summer"
▷ The Tire Pressure Monitor does not activate
until after driving for a few minutes:
▷ "Winter/All-year"
8. Select the tire type that is mounted on the
rear axle.
▷ After a tire or wheel replacement.
▷ After a reset, for tires with special appro‐
val.
For tires with special approval:
"Other tires".
▷ After changing the tire setting.
▷ For tires with special approval:
Observe further proceeding in the perform a
reset section.
▷ After a tire or wheel replacement, a reset
was performed with the correct tire infla‐
tion pressure.
9. Select the maximum road speed that will be
used with the tires.
10."Save tire settings"
▷ After the tire inflation pressure was ad‐
justed to a new value, a reset was per‐
formed.
The measurement of the current tire inflation
pressure is started. The measurement progress
is displayed.
▷ Wheels with wheel electronics.
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Status display
Current status
Tire conditions
General information
The system status can be displayed on the Con‐
trol Display, e.g., whether or not the system is ac‐
tive.
Tire and system status are indicated by the color
of the wheels and a text message on the Control
Display.
Any existing messages may not be deleted if the
target pressure is not reached after the tire infla‐
tion pressure is corrected.
1. "CAR"
2. "Vehicle status"
3.
"Tire Pressure Monitor"
The current status is displayed.
All wheels green
▷ The system is active and bases warnings on
the target pressures.
Current tire pressure
The current tire pressure is displayed for each
tire.
▷ For tires with special approval: the system is
active and bases warnings on the tire inflation
pressures stored during the last reset.
The current tire inflation pressures may change
during driving or depending on the outside tem‐
perature.
One to four yellow wheels
A flat tire or major tire pressure loss has occurred
in the indicated tires.
Current tire temperature
Depending on the model, the current tire tem‐
peratures are displayed.
Gray wheels
The current tire temperatures may change while
driving or due to the outside temperature.
It may not be possible to identify tire pressure
losses.
Possible causes:
▷ Malfunction.
Target pressure
The target pressure for the tires on the front and
rear axles is displayed.
▷ During tire inflation pressure measurement,
after confirmation of the tire settings.
The specified target pressures take the influence
of driving and outside temperature on the tire
temperature into account. The appropriate target
pressure is always displayed, independent of the
weather situation, tire temperatures and travel
times.
▷ For tires with special approval: a reset is per‐
formed for the system.
For tires with special approval:
perform a reset
1. "CAR"
The displayed target pressure may change and
may differ from the tire inflation pressure details
on the door pillar of the driver's door. The tire in‐
flation pressure can thus be corrected to the
value of the displayed target pressures.
2. "Vehicle status"
3. "Tire Pressure Monitor"
4. Make sure that correct tire settings have
been made.
The target pressure is immediately adjusted if
the vehicle load status is changed in the tire set‐
tings.
5. Turn on drive-ready state and do not drive
off.
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6. Reset tire pressure: "Perform reset".
7. Drive away.
Icon Possible cause
Inflation was not carried out according
The wheels are displayed in gray and the follow‐
ing is displayed "Resetting tire pressure…".
to specifications, for instance when the
tire has not been sufficiently inflated or
in the case of a natural steady tire pres‐
sure loss.
After a travel time of several minutes, the set tire
inflation pressures are accepted as the prede‐
fined tire inflation pressures. The reset is com‐
pleted automatically while driving.
Measure
After a successfully completed reset, the wheels
on the Control Display are shown in green and
the following is displayed: "Reset successful."
Check the tire pressure and correct as needed.
If the tire inflation pressure is too
low
You may interrupt this trip at any time. When you
continue the reset resumes automatically.
Message
Messages: for tires without
special approval
A yellow warning light is illuminated in
the instrument cluster.
General information
A low tire inflation pressure may cause the DSC
Dynamic Stability Control to be switched on.
In addition, an icon with a Check Control mes‐
sage appears on the Control Display.
Icon
Possible cause
There is a tire pressure loss.
Safety information
Warning
Measure
A damaged regular tire with low or missing tire
inflation pressure impacts handling, such as
steering and braking response. Run-flat tires
can maintain limited stability. There is a risk of
accident. Do not continue driving if the vehicle
is equipped with normal tires. Follow the infor‐
mation on run-flat tires and continued driving
with these tires.
1. Reduce the vehicle speed. Do not exceed a
speed of 80 mph/130 km/h.
2. At the next opportunity, for instance at a filling
station, check the tire inflation pressure in all
four tires and correct if necessary.
If there is a significant tire pressure
loss
If a tire inflation pressure check is
required
Message
A yellow warning light is illuminated in
the instrument cluster.
Message
An icon with a Check Control message appears
on the Control Display.
In addition, an icon with the affected tire appears
in a Check Control message on the Control Dis‐
play.
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If a tire inflation pressure check is
required
Icon Possible cause
There is a flat tire or a major tire pres‐
sure loss.
Message
An icon with a Check Control message appears
on the Control Display.
Measure
1. Reduce your speed and stop cautiously.
Avoid sudden braking and steering maneu‐
vers.
Icon
Possible cause
Inflation was not carried out accord‐
ing to specifications, e.g., the tire has
not been sufficiently inflated.
2. Check whether the vehicle is fitted with nor‐
mal tires or run-flat tires.
The system has detected a wheel
change, but no reset was done.
Run-flat tires are labeled with a circular icon
containing the letters RSC marked on the tire
sidewall.
The tire inflation pressure has fallen
below the level of the last reset.
No reset was performed for the sys‐
tem. The system issues a warning
based on the tire inflation pressures
stored during the last reset.
3. Read the description on What to do in case of
a flat tire.
Actions in the event of a flat tire, refer to
Measure
Messages: for tires with special
approval
1. Check the tire pressure and correct as
needed.
2. Perform a system reset.
General information
A low tire inflation pressure may cause the DSC
Dynamic Stability Control to be switched on.
If the tire inflation pressure is too
low
Safety information
Message
A yellow warning light is illuminated in
the instrument cluster.
Warning
A damaged regular tire with low or missing tire
inflation pressure impacts handling, such as
steering and braking response. Run-flat tires
can maintain limited stability. There is a risk of
accident. Do not continue driving if the vehicle
is equipped with normal tires. Follow the infor‐
mation on run-flat tires and continued driving
with these tires.
In addition, an icon with a Check Control mes‐
sage appears on the Control Display.
Icon Possible cause
There is a tire pressure loss.
No reset was performed for the sys‐
tem. The system issues a warning
based on the tire inflation pressures
stored during the last reset.
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Measure
Actions in the event of a flat tire
1. Reduce the vehicle speed. Do not exceed a
speed of 80 mph/130 km/h.
Normal tires
2. At the next opportunity, for instance at a filling
station, check the tire inflation pressure in all
four tires and correct if necessary.
1. Identify the damaged tire.
Check the tire pressure in all four tires, for in‐
stance using the tire pressure display of a flat
tire kit.
3. Reset the system.
For tires with special approval: when the tire
pressure in all four tires is correct, the Tire
Pressure Monitor may not have been reset. In
this case, perform the reset.
If there is a significant tire pressure
loss
Message
If tire damage cannot be found, contact a
dealer’s service center or another qualified
service center or repair shop.
A yellow warning light is illuminated in
the instrument cluster.
2. Repair the flat tire, e.g., with a flat tire kit or by
changing the wheel.
In addition, an icon with the affected tire appears
in a Check Control message on the Control Dis‐
play.
Use of sealing compound, for instance from the
flat tire kit, may damage the wheel electronics.
Have the electronics replaced at the next oppor‐
tunity.
Icon Possible cause
There is a flat tire or a major tire pres‐
sure loss.
Runflat tires
No reset was performed for the sys‐
tem. The system issues a warning
based on the tire inflation pressures
stored during the last reset.
Safety information
Warning
The vehicle handles differently when a run-flat
tire has insufficient or no tire pressure; for in‐
stance, reduced lane stability when braking,
braking distances are longer and the self-steer‐
ing properties will change. There is a risk of ac‐
cident. Drive moderately and do not exceed a
speed of 50 mph/80 km/h.
Measure
1. Reduce your speed and stop cautiously.
Avoid sudden braking and steering maneu‐
vers.
2. Check whether the vehicle is fitted with nor‐
mal tires or run-flat tires.
Run-flat tires are labeled with a circular icon
containing the letters RSC marked on the tire
sidewall.
Maximum speed
You may continue driving with a damaged tire at
speeds up to 50 mph/80 km/h.
3. Read the description on What to do in case of
a flat tire.
Actions in the event of a flat tire, refer to
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Continued driving with a flat tire
System limits
Temperature
Follow the following when continuing to drive
with a damaged tire:
The tire inflation pressure depends on the tire's
temperature.
1. Avoid sudden braking and steering maneu‐
vers.
Driving or exposure to the sun will increase the
tire's temperature, thus increasing the tire infla‐
tion pressure.
2. Do not exceed a speed of 50 mph/80 km/h.
3. Check the tire inflation pressure in all four
tires at the next opportunity.
The tire inflation pressure is reduced when the
tire temperature falls again.
Possible driving distance with a
depressurized tire
These circumstances may cause a warning
when temperatures fall very sharply.
The distance for which it may be possible to
drive safely varies depending on how the vehicle
is loaded and used, e.g., speed, road conditions,
outside temperature. The driving distance may
be less but may also be more if an economical
driving style is used.
Following a temperature-related warning, the tar‐
get pressures are displayed on the Control Dis‐
play again after a short distance.
Sudden tire pressure loss
If the vehicle is loaded with an average weight
and used under favorable conditions, the dis‐
tance for which it may be safe to drive may be up
to 50 miles/80 km.
The system cannot indicate sudden serious tire
damage caused by external circumstances.
Failure performing a reset
Tires with special approval: the system will not
function correctly if a reset was not performed,
for example a flat tire may be indicated although
the tire inflation pressures are correct.
Vehicle handling with damaged tires
Vehicles driven with a damaged tire will handle
differently, potentially leading to conditions such
as the following:
▷ Greater likelihood of skidding of the vehicle.
▷ Longer braking distances.
Malfunction
Message
▷ Changed self-steering properties.
The yellow warning light flashes and is
then illuminated continuously. A Check
Control message is displayed. It may not
be possible to identify tire pressure losses.
Modify your driving style. Avoid abrupt steering
maneuvers or driving over obstacles, for instance
curbs or potholes.
Final tire failure
Vibrations or loud noises while driving can indi‐
cate the final failure of a tire.
Measure
▷ A wheel without wheel electronics, such as
an emergency wheel, is mounted: have the
wheels checked, if needed.
Reduce speed and stop; otherwise, pieces of the
tire could come loose and cause an accident.
Do not continue driving. Contact a dealer’s serv‐
ice center or another qualified service center or
repair shop.
▷ Fault caused by systems or devices with the
same radio frequency: after leaving the area
of the interference, the system automatically
becomes active again.
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▷ For tires with special approval: the system
was unable to complete the reset. Perform a
system reset again.
function exists. When the malfunction indicator is
illuminated, the system may not be able to de‐
tect or signal low tire pressure as intended.
TPMS malfunctions may occur for a variety of
reasons, including the installation of replacement
or alternate tires or wheels on the vehicle that
prevent the TPMS from functioning properly. Al‐
ways check the TPMS malfunction telltale after
replacing one or more tires or wheels on your ve‐
hicle to ensure that the replacement or alternate
tires and wheels allow the TPMS to continue to
function properly.
▷ Tire Pressure Monitor malfunction: have the
system checked by a manufacturer service
center or another qualified service center or
repair shop.
Declaration according to NHTSA/
FMVSS 138 Tire Pressure
Monitoring System
Each tire, including the spare (if provided) should
be checked monthly when cold and inflated to
the inflation pressure recommended by the vehi‐
cle manufacturer on the vehicle placard or tire in‐
flation pressure label. (If your vehicle has tires of
a different size than the size indicated on the ve‐
hicle placard or tire inflation pressure label, you
should determine the proper tire inflation pres‐
sure for those tires.) As an added safety feature,
your vehicle has been equipped with a tire pres‐
sure monitoring system (TPMS) that illuminates
a low tire pressure telltale when one or more of
your tires is significantly under-inflated. Accord‐
ingly, when the low tire pressure telltale illumi‐
nates, you should stop and check your tires as
soon as possible, and inflate them to the proper
pressure. Driving on a significantly under-inflated
tire causes the tire to overheat and can lead to
tire failure. Under-inflation also reduces fuel effi‐
ciency and tire tread life, and may affect the vehi‐
cle's handling and stopping ability. Please note
that the TPMS is not a substitute for proper tire
maintenance, and it is the driver's responsibility
to maintain correct tire pressure, even if under-
inflation has not reached the level to trigger illu‐
mination of the TPMS low tire pressure telltale.
Your vehicle has also been equipped with a
TPMS malfunction indicator to indicate when the
system is not operating properly. The TPMS
malfunction indicator is combined with the low
tire pressure telltale. When the system detects a
malfunction, the telltale will flash for approxi‐
mately one minute and then remain continuously
illuminated. This sequence will continue upon
subsequent vehicle start-ups as long as the mal‐
Flat Tire Monitor FTM
Principle
The Flat Tire display detects a tire pressure loss
while driving and issues a warning if the tire pres‐
sure has dropped.
General information
The system detects tire pressure loss on the ba‐
sis of rotation speed differences between the in‐
dividual wheels while driving.
In the event of a tire pressure loss, the diameter
and therefore the rotational speed of the corre‐
sponding wheel changes. The difference will be
detected and reported as a flat tire.
The system does not measure the actual infla‐
tion pressure in the tires.
Functional requirements
The following conditions must be met for the
system; otherwise, reliable message of a tire
pressure loss is not assured:
▷ After a tire or wheel replacement, an initializa‐
tion was performed with the correct tire infla‐
tion pressure.
▷ After the tire pressure was adjusted to a new
value, an initialization was performed.
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Safety information
Status display
The current status of the Flat Tire Monitor FTM
can be displayed, for instance whether the FTM
is active.
Warning
A damaged regular tire with low or missing tire
inflation pressure impacts handling, such as
steering and braking response. Run-flat tires
can maintain limited stability. There is a risk of
accident. Do not continue driving if the vehicle
is equipped with normal tires. Follow the infor‐
mation on run-flat tires and continued driving
with these tires.
1. "CAR"
2. "Vehicle status"
3.
"Flat Tire Monitor"
The status is displayed.
Initialization required
An initialization must be performed in the follow‐
ing situations:
Indication of a flat tire
▷ After the tire inflation pressure has been ad‐
justed.
A yellow warning light is illuminated in
the instrument cluster.
▷ After a tire or wheel replacement.
In addition, an icon with a Check Control mes‐
sage appears on the Control Display.
Performing initialization
When initializing, the set tire inflation pressures
serve as reference values in order to detect a flat
tire. Initialization is started by confirming the tire
inflation pressures.
Icon Possible cause
There is a flat tire or a major tire pres‐
sure loss.
Do not initialize the system when driving with tire
chains.
Measure
1. "CAR"
1. Reduce your speed and stop cautiously.
Avoid sudden braking and steering maneu‐
vers.
2. "Vehicle status"
3. "Flat Tire Monitor"
2. Check whether the vehicle is fitted with nor‐
mal tires or run-flat tires.
4. Turn on drive-ready state and do not drive
off.
Run-flat tires are labeled with a circular icon
containing the letters RSC marked on the tire
sidewall.
5. Start the initialization with: "Perform reset"
6. Drive away.
The initialization is completed while driving,
which can be interrupted at any time.
The initialization automatically continues when
driving continues.
Actions in the event of a flat tire
Normal tires
1. Identify the damaged tire.
Messages
To do this, check the tire pressure in all four
tires, for instance using the tire pressure dis‐
play of a flat tire kit.
General information
When a flat tire is indicated, DSC Dynamic Sta‐
bility Control is switched on, if needed.
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When the tire inflation pressure in all four tires
is correct, the Flat Tire Monitor FTM may not
have been initialized. In this case, initialize the
system.
Possible driving distance with a
depressurized tire
The distance for which it may be possible to
drive safely varies depending on how the vehicle
is loaded and used, e.g., speed, road conditions,
outside temperature. The driving distance may
be less but may also be more if an economical
driving style is used.
If identification of flat tire damage is not pos‐
sible, please contact a dealer’s service center
or another qualified service center or repair
shop.
2. Repair the flat tire, e.g., with a flat tire kit or by
changing the wheel.
If the vehicle is loaded with an average weight
and used under favorable conditions, the dis‐
tance for which it may be safe to drive may be up
to 50 miles/80 km.
Runflat tires
Vehicle handling with damaged tires
Safety information
Vehicles driven with a damaged tire will handle
differently, potentially leading to conditions such
as the following:
Warning
The vehicle handles differently when a run-flat
tire has insufficient or no tire pressure; for in‐
stance, reduced lane stability when braking,
braking distances are longer and the self-steer‐
ing properties will change. There is a risk of ac‐
cident. Drive moderately and do not exceed a
speed of 50 mph/80 km/h.
▷ Greater likelihood of skidding of the vehicle.
▷ Longer braking distances.
▷ Changed self-steering properties.
Modify your driving style. Avoid abrupt steering
maneuvers or driving over obstacles, for instance
curbs or potholes.
Final tire failure
Maximum speed
Vibrations or loud noises while driving can indi‐
cate the final failure of a tire.
You may continue driving with a damaged tire at
speeds up to 50 mph/80 km/h.
Reduce speed and stop; otherwise, pieces of the
tire could come loose and cause an accident.
Continued driving with a flat tire
Do not continue driving. Contact a dealer’s serv‐
ice center or another qualified service center or
repair shop.
Follow the following when continuing to drive
with a damaged tire:
1. Avoid sudden braking and steering maneu‐
vers.
System limits
The system could be delayed or malfunction in
the following situations:
2. Do not exceed a speed of 50 mph/80 km/h.
3. Check the tire inflation pressure in all four
tires at the next opportunity.
▷ A natural, even tire pressure loss in all four
tires will not be recognized. Therefore, check
the tire inflation pressure regularly.
When the tire inflation pressure in all four tires
is correct, the Flat Tire Monitor may not have
been initialized. In this case, initialize the sys‐
tem.
▷ Sudden serious tire damage caused by exter‐
nal circumstances cannot be recognized in
advance.
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▷ The system has not been initialized.
Warning
▷ When driving on a snowy or slippery road.
The jack, issued by the vehicle manufacturer, is
provided in order to perform a wheel change in
the event of a breakdown. The jack is not de‐
signed for frequent use; for example, changing
from summer to winter tires. Using the jack fre‐
quently may cause it to become jammed or
damaged. There is a risk of injury and risk of
damage to property. Only use the jack to attach
an emergency or spare wheel in the event of a
breakdown.
▷ Sporty driving style: slip on traction wheels,
high lateral acceleration (drifting).
▷ When driving with tire chains.
Changing wheels/tires
General information
When using run-flat tires or a flat tire kit, a wheel
does not always need to be changed immedi‐
ately when there is a tire pressure loss due to a
flat tire.
Warning
If needed, the tools for changing wheels are
available as accessories from a dealer’s service
center or another qualified service center or re‐
pair shop.
On soft, uneven or slippery ground, for example
snow, ice, tiles, etc., the vehicle jack can slip
away. There is a risk of injury. If possible,
change the wheel on a flat, solid, and slip-re‐
sistant surface.
Safety information
Warning
Warning
The vehicle jack is optimized for lifting the vehi‐
cle and for the jacking points on the vehicle
only. There is a risk of injury. Do not lift any
other vehicle or cargo using the vehicle jack.
The vehicle jack is only provided for short-term
lifting of the vehicle for wheel changes. Even if
all safety measures are observed, there is a risk
of the raised vehicle falling, if the vehicle jack
tips over. There is a risk of injury or danger to
life. When the vehicle is raised with the vehicle
jack, do not lie under the vehicle and do not
switch on the drive-ready state.
Warning
When the vehicle jack is not inserted into the
jacking point provided for this purpose, the ve‐
hicle may be damaged or the vehicle jack may
slip when it is being cranked up. There is a risk
of injury or risk of damage to property. When
cranking up the vehicle jack, ensure that it is in‐
serted in the jacking point next to the wheel
housing.
Warning
Supports such as wooden blocks under the ve‐
hicle jack reduce the capacity of the vehicle
jack to bear weight. They have the potential to
exert too much strain on the vehicle jack, caus‐
ing it to tip over and the vehicle to fall. There is
a risk of injury or danger to life. Do not place
supports under the vehicle jack.
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On a slight downhill gradient
Warning
A vehicle that is raised on a vehicle jack may fall
off of the jack if lateral forces are exerted on it.
There is a risk of injury and risk of damage to
property. While the vehicle is raised, do not ex‐
ert lateral forces on the vehicle or pull abruptly
on the vehicle. Have a stuck wheel removed by
a dealer’s service center or another qualified
service center or repair shop.
If you need to change a wheel on a slight down‐
hill grade, place chocks and other suitable ob‐
jects, for instance rocks, under the wheels of
both the front and rear axles against the rolling
direction.
Securing the vehicle against
rolling
General information
The vehicle manufacturer recommends to addi‐
tionally secure the vehicle against rolling away
when changing a wheel.
Lug bolt lock
Principle
The wheel lug bolts have a special coding. The
lug bolts can only be released with the adapter
which matches the coding.
On a level surface
Overview
The adapter of the lug bolt lock is in the onboard
vehicle tool kit or in a storage compartment close
to the onboard vehicle tool kit.
Place wheel chocks or other suitable objects in
front and behind the wheel that is diagonal to the
wheel to be changed.
▷ Lug lock bolt, arrow 1.
▷ Adapter, arrow 2.
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Unscrewing
1. Attach the adapter to the lug lock bolt.
Jacking points for the vehicle
jack
2. Unscrew the lug lock bolt.
3. Remove the adapter after unscrewing the lug
bolt.
Screwing on
1. Attach the adapter to the lug lock bolt. If nec‐
essary, turn the adapter until it fits on the lug
lock bolt.
2. Screw on the lug lock bolt. The tightening
torque is 101 lbs ft/140 Nm.
The jacking points for the vehicle jack are lo‐
cated at the indicated positions.
3. Remove the adapter and stow it after screw‐
ing on the lug bolt.
Jacking up the vehicle
Preparing the vehicle
▷ Park the vehicle on solid and non-slip ground
at a safe distance from traffic.
Warning
Hands and fingers can be jammed when using
the vehicle jack. There is a risk of injury. Com‐
ply with the described hand position and do not
change this position while using the vehicle
jack.
▷ Turn on the hazard warning system.
▷ Set the parking brake.
▷ Engage a gear or move the selector lever to
position P.
▷ As soon as permitted by the traffic flow, have
all vehicle occupants get out of the vehicle
and ensure that they remain outside the haz‐
ardous area in a safe place, such as behind a
guardrail.
▷ Depending on the vehicle equipment, get
wheel change tools and, if necessary, the
emergency wheel from the vehicle.
▷ If necessary, set up a warning triangle or port‐
able hazard warning light at an appropriate
distance.
▷ Secure the vehicle additionally against rolling.
▷ Loosen the lug bolts a half turn.
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5. Make sure that the vehicle jack foot stands
vertically and at a right angle beneath the
jacking point.
1. Hold the vehicle jack with one hand, arrow 1,
and grasp the vehicle jack crank or lever with
your other hand, arrow 2.
6. Make sure that the vehicle jack foot stands
vertically and perpendicularly beneath the
jacking point after extending the vehicle jack.
2. Insert the vehicle jack into the rectangular re‐
cess of the jacking point closest to the wheel
to be changed.
7. Crank the vehicle up, until the vehicle jack is
with the entire surface on the ground and the
relevant wheel is maximum 1.2 inches/3 cm
above ground.
3. Extend the vehicle jack by turning the vehicle
jack crank or lever clockwise.
Mounting a wheel
Mount one emergency wheel only, as required.
1. Unscrew the lug bolts.
2. Remove the wheel.
3. Put the new wheel or emergency wheel on
and screw in at least two lug bolts in a cross‐
wise pattern until hand-tight.
4. Take your hand away from the vehicle jack as
soon as the vehicle jack is under load and
continue turning the vehicle jack crank or
lever with one hand.
When non-original light-alloy wheels of the
vehicle manufacturer are mounted, the ac‐
companying lug bolts may have to be used as
well.
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4. Hand-tighten the remaining lug bolts and
tighten all lug bolts well in a crosswise pat‐
tern.
Safety information
Warning
5. Turn the vehicle jack crank counterclockwise
to retract the vehicle jack and lower the vehi‐
cle.
The emergency wheel has particular dimen‐
sions. When driving with an emergency wheel,
changed driving properties may occur, for in‐
stance reduced lane stability when braking, lon‐
ger braking distance, and changed self-steering
properties in the limit area. There is a risk of ac‐
cident. Drive moderately and do not exceed a
speed of 50 mph/80 km/h.
6. Remove the vehicle jack and stow it securely.
After the wheel change
1. Tighten the lug bolts crosswise. The tighten‐
ing torque is 101 lbs ft/140 Nm.
2. Stow the nonworking wheel in the cargo area,
if necessary.
Overview
3. Check tire inflation pressure at the next op‐
portunity and correct as needed.
4. Reinitialize the Flat Tire Monitor.
Reset the Tire Pressure Monitor again.
5. Check to make sure the lug bolts are tight
with a calibrated torque wrench.
6. Have the damaged tire replaced at the near‐
est dealer's service center or another quali‐
fied service center or repair shop.
The emergency wheel and the wheel change
tools are located in the cargo area under the
cargo floor panel.
Emergency wheel
Principle
In the event of a flat tire, the emergency wheel
can be used in place of the wheel with the defec‐
tive tire. The emergency wheel is only intended
for temporary use until the defective tire/wheel
has been replaced.
General information
Mount one emergency wheel only.
Also check the tire inflation pressure of the
emergency wheel in the cargo area regularly, and
correct it as needed.
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Removing the emergency wheel
1. Remove the cargo floor panel. To do this, pull
the cargo floor panel upward directly behind
the rear backrests.
2. Open the ratchet strap.
3. Remove the tool holder.
4. Remove the emergency wheel from the stor‐
age well. Do not remove any covers.
Inserting the emergency wheel
1. Place the emergency wheel in the storage
well.
2. Insert the tool holder.
3. Tie the ratchet strap. Make sure that it is cor‐
rectly and firmly seated.
4. Insert the cargo floor panel.
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