Safety -> FTM Flat Tire Monitor for your BMW 6 Series 2011-2017
Controls
Safety
increasing the tire inflation pressure. The tire
inflation pressure is reduced when the tire
temperature falls again. These circumstances
may cause a warning when temperatures fall
very sharply.
sure. Driving on a significantly under-inflated
tire causes the tire to overheat and can lead to
tire failure. Under-inflation also reduces fuel ef‐
ficiency and tire tread life, and may affect the
vehicle'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 illumination of the TPMS low
tire pressure telltale. Your vehicle has also
been equipped with a TPMS malfunction indi‐
cator to indicate when the system is not oper‐
ating properly. The TPMS malfunction indica‐
tor is combined with the low tire pressure
telltale. When the system detects a malfunc‐
tion, the telltale will flash for approximately one
minute and then remain continuously illumi‐
nated. This sequence will continue upon sub‐
sequent vehicle start-ups as long as the mal‐
function exists. When the malfunction indicator
is illuminated, the system may not be able to
detect or signal low tire pressure as intended.
TPMS malfunctions may occur for a variety of
reasons, including the installation of replace‐
ment or alternate tires or wheels on the vehicle
that prevent the TPMS from functioning prop‐
erly. Always check the TPMS malfunction tell‐
tale after replacing one or more tires or wheels
on your vehicle to ensure that the replacement
or alternate tires and wheels allow the TPMS
to continue to function properly.
Malfunction
The yellow warning lamp flashes and
then lights up continuously. A Check
Control message is displayed. No flat
tire or loss of tire inflation pressure can be de‐
tected.
Display in the following situations:
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A wheel without TPM electronics is fitted:
have the service center check it if needed.
Malfunction: have the system checked by
your service center.
TPM was unable to complete the reset.
Reset the system again.
Interference through systems or devices
with the same radio frequency: after leav‐
ing the area of the interference, the system
automatically becomes active again.
Declaration according to NHTSA/
FMVSS 138 Tire Pressure Monitoring
System
Each tire, including the spare (if provided)
should be checked monthly when cold and in‐
flated to the inflation pressure recommended
by the vehicle manufacturer on the vehicle
placard or tire inflation pressure label. (If your
vehicle has tires of a different size than the size
indicated on the vehicle placard or tire inflation
pressure label, you should determine the
proper tire inflation pressure for those tires.)
As an added safety feature, your vehicle has
been equipped with a tire pressure monitoring
system (TPMS) that illuminates a low tire pres‐
sure telltale when one or more of your tires is
significantly under-inflated. Accordingly, when
the low tire pressure telltale illuminates, you
should stop and check your tires as soon as
possible, and inflate them to the proper pres‐
FTM Flat Tire Monitor
The concept
The system detects tire inflation pressure loss
on the basis of rotation speed differences be‐
tween the individual wheels while driving.
In the event of a tire inflation pressure loss, the
diameter and therefore the rotational speed of
the corresponding wheel changes. This will be
detected and reported as a flat tire.
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Safety
Controls
The system does not measure the actual infla‐
tion pressure in the tires.
Indication of a flat tire
The yellow warning lamp lights up. A
Check Control message is displayed.
Functional requirements
There is a flat tire or a major loss in tire
inflation pressure.
The system must have been initialized when
the tire inflation pressure was correct; other‐
wise, reliable flagging of a flat tire is not as‐
sured. Initialize the system after each correc‐
tion of the tire inflation pressure and after
every tire or wheel change.
1. Reduce your speed and stop cautiously.
Avoid sudden braking and steering maneu‐
vers.
2. Check whether the vehicle is fitted with
regular tires or run-flat tires.
Status display
Run-flat tires, refer to page 208, are la‐
beled with a circular symbol containing the
letters RSC marked on the tire's sidewall.
The current status of the Flat Tire Monitor can
be displayed on the Control Display, e.g.,
whether or not the FTM is active.
Do not continue driving without run-flat
tires
On the Control Display:
1. "Vehicle info"
Do not continue driving if the vehicle is not
equipped with run-flat tires; continued driving
may result in serious accidents.◀
2. "Vehicle status"
3.
"Flat Tire Monitor (FTM)"
The status is displayed.
When a flat tire is indicated, DSC Dynamic Sta‐
bility Control is switched on if needed.
Initialization
System limits
When initializing the once set inflation tire
pressures serve as reference values in order to
detect a flat tire. Initialization is started by con‐
firming the tire inflation pressures.
Sudden tire damage
Sudden serious tire damage caused by
external circumstances cannot be recognized
in advance.◀
Do not initialize the system when driving with
snow chains.
A natural, even tire inflation pressure loss in all
four tires will not be recognized. Therefore,
check the tire inflation pressure regularly.
On the Control Display:
1. "Vehicle info"
2. "Vehicle status"
The system could be delayed or malfunction in
the following situations:
3.
"Perform reset"
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When the system has not been initialized.
4. Start the engine - do not drive off.
5. Start the initialization with "Perform reset".
6. Drive away.
When driving on a snowy or slippery road
surface.
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Sporty driving style: spinning traction
wheels, high lateral acceleration (drifting).
The initialization is completed while driving,
which can be interrupted at any time.
When driving with snow chains.
The initialization automatically continues when
driving resumes.
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Controls
Safety
A vehicle with a damaged tire reacts differ‐
ently, e.g., it has reduced lane stability during
braking, a longer braking distance and different
self-steering properties. Adjust your driving
style accordingly. Avoid abrupt steering ma‐
neuvers or driving over obstacles, e.g., curbs,
potholes, etc.
Actions in the event of a flat tire
Normal tires
1. Identify the damaged tire.
Do this by checking the air pressure in all
four tires.
The tire pressure gage of the Mobility Sys‐
tem, refer to page 208, can possibly be
used for this purpose.
Because the possible driving distance de‐
pends on how the vehicle is used during the
trip, the actual distance may be shorter or lon‐
ger depending on the driving speed, road con‐
ditions, external temperature, cargo load, etc.
If the tire inflation pressure in all four tires
is correct, the Flat Tire Monitor may not
have been initialized. In this case, initialize
the system.
Continued driving with a flat tire
Drive moderately and do not exceed a
speed of 50 mph/80 km/h.
If an identification is not possible, please
contact the service center.
Your car handles differently when you lose tire
inflation pressure, e.g., your lane stability is re‐
duced when braking, braking distances are
longer and the self-steering properties will
change.◀
2. Fix the flat tire where applicable using the
Mobility System, refer to page 208.
Run-flat tires
Maximum speed
Final tire failure
You may continue driving with a damaged tire
at speeds up to 50 mph/80 km/h.
Vibrations or loud noises while driving
can indicate the final failure of a tire. Reduce
speed and stop; otherwise, pieces of the tire
could come loose and cause an accident. Do
not continue driving and contact your service
center.◀
Continued driving with a flat tire
If continuing to drive with a damaged tire:
1. Avoid sudden braking and steering maneu‐
vers.
2. Do not exceed a speed of 50 mph/80 km/h.
Intelligent Safety
3. Check the air pressure in all four tires at
the next opportunity.
The concept
Intelligent Safety enables central operation of
the driver assistance system.
If the tire inflation pressure in all four tires
is correct, the Flat Tire Monitor may not
have been initialized. In this case, initialize
the system.
Depending on how the vehicle is equipped, In‐
telligent Safety consists of one or more sys‐
tems that can help prevent a imminent colli‐
sion. These systems are active automatically
every time the engine is started using the
Start/Stop button:
Possible driving distance with complete loss of
tire inflation pressure:
The possible driving distance after a loss of tire
inflation pressure depends on cargo load, driv‐
ing style and road conditions.
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Front-end collision warning, refer to
page 117.
A vehicle with an average load has a possible
driving range of approx. 50 miles/80 km.
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Pedestrian warning, refer to page 123.
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