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EnglishMobility -> Replacing components for your BMW M3 2020-2025
Mobility
Replacing components
Replacing components
Replacing the wiper blades
1. To change the wiper blades, fold up, refer
to page 69, the wiper arms.
Vehicle features and options
This chapter describes all standard, country-
specific and optional features offered with the
series. It also describes features that are not
necessarily available in your car, e. g., due to
the selected options or country versions. This
also applies to safety-related functions and
systems. The respectively applicable country
provisions must be observed when using the
respective features and systems.
2. Fold up and hold the wiper arm firmly.
3. Squeeze the retainer spring, arrow 1, and
fold up the wiper blade, arrow 2.
Onboard vehicle tool kit
4. Remove the wiper blade forward from the
catch.
5. Insert the new wiper blade in reverse order
of removal until it locks in place.
6. Fold down the wipers.
Folding down wipers before opening the
hood
The onboard vehicle tool kit is located on the
right side in the trunk in a storage compart‐
ment. Open the cover.
Before opening the hood, ensure that the
wiper arms with the wiper blades are against
the windshield to prevent damage.◀
Wiper blade replacement
Lamp and bulb replacement
Note
Hints
Do not fold down the wipers without
wiper blades
Lights and bulbs
Lights and bulbs make an essential contribu‐
tion to vehicle safety.
Do not fold down the wipers if wiper blades
have not been installed; this may damage the
windshield.◀
The manufacturer of the vehicle recommends
that you entrust corresponding procedures to
the service center if you are unfamiliar those or
if they have not been described here.
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Replacing components
Headlight glass
Mobility
You can obtain a selection of replacement
bulbs at the service center.
Condensation can form on the inside of the ex‐
ternal lights in cool or humid weather. When
driving with the light switched on, the conden‐
sation evaporates after a short time. The head‐
light glass does not need to be changed.
Danger of burns
Only change bulbs when they are cool;
otherwise, there is a danger of getting
burned.◀
If the headlights do not dim despite driving
with the light switched on, increasing humidity
forms, e. g. water droplets in the light, have the
service center check this.
Working on the lighting system
When working on the lighting system,
you should always reel off the lights affected to
prevent short circuits.
Headlight setting
To avoid possible injury or equipment damage
when replacing bulbs, observe any instructions
provided by the bulb manufacturer.◀
The headlight adjustments can be affected by
changing lights and bulbs. Have the head‐
lights' settings checked and corrected by serv‐
ice after a replacement.
Do not perform work/bulb replacement
on xenon headlights
Front lights, bulb replacement
Xenon headlights
Have any work on the xenon lighting system,
including bulb replacement, performed only by
a service center. Due to the high voltage
present in the system, there is a danger of fatal
injuries if work is carried out improperly.◀
Xenon headlights
Because of the long life of these bulbs, the
likelihood of failure is very low. Switching the
lights on and off frequently shortens their life.
Do not touch the bulbs
Do not touch the glass of new bulbs with
your bare hands, as even minute amounts of
contamination will burn into the bulb's surface
and reduce its service life.
Do not perform work/bulb replacement
on xenon headlights
Have any work on the xenon lighting system,
including bulb replacement, performed only by
a service center. Due to the high voltage
present in the system, there is a danger of fatal
injuries if work is carried out improperly.◀
Use a clean tissue, cloth or something similar,
or hold the bulb by its base.◀
Light-emitting diodes (LEDs)
Some items of equipment use light-emitting
diodes installed behind a cover as a light
source.
For checking and adjusting headlamp aim,
please contact your BMW center.
These light-emitting diodes, which are related
to conventional lasers, are officially designated
as Class 1 light-emitting diodes.
Do not remove the covers
Do not remove the covers, and never
stare into the unfiltered light for several hours;
otherwise, irritation of the retina could result.◀
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Mobility
Replacing components
Headlights
3. Turn the bulb socket counterclockwise and
remove.
1
2
3
Parking lights / daytime running lights
Low beams/high beams/headlight flasher
Turn signal
4. Press the bulb gently into the socket, turn
counterclockwise and remove.
5. Install the new bulb and bulb holder in re‐
verse order of removal.
Low beams and high beams are designed with
xenon technology.
6. Refasten the wheel house panel.
The parking lights and daylight running lights
are made using LED technology.
LED headlights
Contact your service center in the event of a
malfunction.
Light-emitting diodes (LEDs)
With LED headlights, all front lights and side
indicators are designed with LED technology.
Turn signal
21-watt bulb, PY21W
Contact your service center in the event of a
malfunction.
1. In the wheel house, unscrew three screws
using the screwdriver from the onboard ve‐
hicle tool kit, arrow 1.
Headlights
1
2
3
4
5
6
Cornering light
Low beams/headlight flasher
High beams/headlight flasher
Parking lights / daytime running lights
Turn signal
2. Lift the wheel house panel and firmly hold
it, arrow 2.
Side marker lights
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Replacing components
Mobility
Contact your service center in the event of a
malfunction.
Removing the exterior tail lamp
1. Open trunk lid.
2. Use the screwdriver from the onboard ve‐
hicle tool kit to loosen the screw, arrow 1,
and remove the cover, arrow 2.
Turn signal in exterior mirror
The turn signals in the exterior mirrors feature
LED technology. Contact your service center
in the event of a malfunction.
Tail lights, bulb replacement
At a glance
3. Use the screwdriver handle to loosen the
two nuts, arrows 1 and 2, and remove. The
tail lamp is still attached to a rubber mount
on the outside.
1
2
3
4
5
Turn signal
Reversing lamp
Inside brake lamp
Tail lights
Outside brake lamp
4. Grasp the inner edge of the tail lamp and
carefully swing it back and out of the rub‐
ber mount, arrow 1. Use your free hand to
hold it in place in order to prevent the tail
lamp from coming loose suddenly. Make
sure that the foam rubber sealing ring is on
the centering pin, arrow 2.
Bulb replacement, exterior tail lights
General information
Turn signal: 21-watt bulb, P21WLL.
Outer brake lamp: 21-watt bulb, H21W.
The tail lights feature LED technology. Contact
your service center in the event of a malfunc‐
tion.
Use caution when replacing the bulb
Use caution and proceed one step at a
time when replacing the bulbs to prevent dam‐
age to the tail lights or the vehicle.◀
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Mobility
Replacing components
5. Remove the connecting line from the clip
on the bulb holder.
component, arrow 2. Make sure that the
tail lamp engages in the rubber mount.
6. Press and hold the catch at the top on the
connector of the connecting line and re‐
move the connector from the bulb holder.
Replacing the bulbs
1. Loosen the four fasteners, arrow 1, on the
bulb holder and remove the bulb holder
from the tail lamp, arrow 2.
4. Screw the tail lamp on with the two nuts.
5. Insert and secure the cover. Make sure that
the tubular seal is not pinched.
Lights in the trunk lid
General information
Reversing lights: 16-watt bulb, PW16W.
Inner brake lights: 21-watt bulb, H21W
2. Press the defective bulb gently into the
socket, turn counterclockwise and remove.
3. Proceed in the reverse order to insert the
new bulb and attach the bulb holder. Make
sure that the bulb holder engages in all fas‐
teners.
Accessing the lights
1. If needed, remove warning triangle, refer to
page 199, and bracket with the screw‐
driver from the onboard vehicle tool kit, re‐
Installing the tail lamp
1. Connect the connecting line to the tail
lamp and secure the bulb holder in the clip.
2. Use the screwdriver from the onboard ve‐
hicle tool kit to loosen and completely re‐
move the screws on the trim.
2. Make sure that the foam rubber sealing
ring is on the centering pin, arrow 2, and is
not damaged.
3. Position and firmly press the outer part of
the tail lamp onto the rubber mount, ar‐
row 1 and the inner part onto the centering
3. Carefully loosen the trim from the trunk lid,
starting at the edge and working toward
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Replacing components
Mobility
the area around the recessed grips. Make
sure that the trim does not become stuck.
Rear lamp, license plate lamp and
central brake lamp
4. Carefully swing out the trim.
These lights are made using LED technology.
Contact your service center in the event of a
malfunction.
Replacing the reversing lamp and inner
brake lamp
1. Loosen the two holders, arrow 1 and pull
down on the lamp holder to remove, ar‐
row 2.
Changing wheels
Hints
When sealants are used, an immediate wheel
change when there is a loss of tire inflation
pressure in the event of a flat tire is unneces‐
sary.
Which is why no spare tire is available.
The tools for changing wheels are available as
accessories from your service center.
2. Unscrew the defective bulb of the revers‐
ing or brake lamp from its socket counter‐
clockwise.
Jacking points for the vehicle jack
3. Insert the new bulb.
Installing the bulb holder
1. Slide the bulb holder onto the two guide
pins, arrow 1. Insert the two contacts, ar‐
row 2, into the connections, arrow 3.
The jacking points for the vehicle jack are lo‐
cated at the positions shown.
Vehicle battery
Maintenance
The battery is maintenance-free.
2. Press on the bulb holder. Make sure that
the two exterior holders latch into place.
Further information about the battery can be
obtained from your service center.
3. Swing the trim back onto the trunk lid and
secure.
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Mobility
Replacing components
Battery replacement
Starting aid terminals
In the vehicle, only charge the battery via the
starting aid terminals, refer to page 200, in the
engine compartment with the engine off.
Use approved vehicle batteries only
Only use vehicle batteries that have been
approved for your vehicle by the manufacturer;
otherwise, the vehicle could be damaged and
systems or functions may not be fully availa‐
ble.◀
Power failure
After a temporary power loss, some equipment
needs to be newly initialized or individual set‐
tings updated, e. g.:
After a battery replacement, have the battery
registered on the vehicle by the service center
to ensure that all comfort features are fully
available and that any Check Control mes‐
sages of these comfort features are no longer
displayed.
▷
Seat and mirror memory: store the posi‐
tions again.
▷
▷
▷
Time: update.
Date: update.
Glass sunroof and sliding visor: initialize
the system, refer to page 48.
Charging the battery
General information
Make sure that the battery is always suffi‐
ciently charged to guarantee that the battery
remains usable for its full service life.
Disposing of old batteries
Have old batteries disposed of by your
service center or bring them to a recy‐
cling center.
The battery may need to be charged in the fol‐
lowing cases:
▷
When making frequent short-distance
drives.
Fuses
▷
If the vehicle is not used for prolonged pe‐
riods, longer than a month.
Hints
Replacing fuses
Hints
Never attempt to repair a blown fuse and
do not replace a defective fuse with a substi‐
tute of another color or amperage rating; this
could lead to a circuit overload, ultimately re‐
sulting in a fire in the vehicle.◀
Use approved chargers only
Only use chargers that have been ap‐
proved by the manufacturer of your vehicle,
otherwise your vehicle may be damaged. Do
not exceed the maximum charge voltage of
14.4 Volt.◀
Plastic tweezers and information on the fuse
types and locations are stored in the fuse box
in the trunk.
Do not connect charging devices to the
12 volt socket in the vehicle
Do not connect battery chargers to the fac‐
tory-installed 12 volt sockets in the vehicle as
this may damage the vehicle battery due to an
increased power consumption.◀
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Replacing components
In the trunk
Mobility
In the engine compartment
1. Use the onboard vehicle tool kit to loosen
the three cover screws, arrow 1.
Fold up the cargo floor panel.
2. Pull up the holder, arrow 2.
3. Remove the cover from one side, arrow 3.
4. Press the four fasteners and remove the
cover.
Information on the fuse types and locations is
found on a separate sheet.
Attaching the covers
1. When attaching the cover, make sure that
all four fasteners are engaged.
2. Attach the cover under the rubber lip and
then thread it between the bars.
3. Press down on the holder and tighten the
three screws.
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