MOBILITY -> Replacing components for Your BMW M4 2 Door Second Generation (2021-2025)

Replacing components  
MOBILITY  
Replacing components  
switch on the wiper without a wiper blade in‐  
stalled.  
Vehicle features and  
options  
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.  
NOTICE  
Folded-away wipers can be jammed when the  
hood is opened. There is a risk of damage to  
property, among other potential damage. Make  
sure that the wipers with the wiper blades  
mounted are folded down onto the windshield  
before opening the hood.  
Replacing the wiper blades  
1. To change the wiper blades, fold up the wiper  
arms.  
Vehicle tool kit  
Fold-away position of the wipers, refer to  
page 138.  
2. Fold up and hold the wiper arm firmly.  
3. Squeeze the retainer spring, arrow 1, and fold  
up the wiper blade, arrow 2.  
The onboard vehicle tool kit is located in the left  
storage compartment of the cargo area under a  
cover.  
Wiper blades  
Safety information  
NOTICE  
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.  
The window may sustain damage if the wiper  
falls onto it without the wiper blade installed.  
There is a risk of damage to property, among  
other potential damage. Hold the wiper firmly  
when changing the wiper blade. Do not fold or  
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Replacing components  
MOBILITY  
If despite driving with the headlights switched on,  
Lights and bulbs  
increasing humidity forms, for instance water  
droplets in the light, have the headlights  
checked.  
General information  
Lights and bulbs make an essential contribution  
to driving safety.  
Vehicle battery  
All headlights and lights are made using LED or  
laser technology.  
General information  
The battery is maintenance-free.  
Some items of equipment use light-emitting di‐  
odes installed behind a cover as a light source.  
These light-emitting diodes are related to con‐  
ventional lasers and are officially designated as  
Class 1 light-emitting diodes.  
More information about the battery can be re‐  
quested from a dealer's service center or another  
qualified service center or repair shop.  
The manufacturer of the vehicle recommends  
that you let a dealer's service center or another  
qualified service center or repair shop perform  
the work in case of a malfunction.  
Safety information  
DANGER  
Contact with live components can lead to an  
electric shock. There is a risk of injury or danger  
to life. Do not touch any components that are  
under voltage.  
Safety information  
Warning  
Focused laser light can irritate or permanently  
damage the retina of the eye. There is a risk of  
injury. The manufacturer of the vehicle recom‐  
mends that the work on the lighting system in‐  
cluding bulb replacement be performed by a  
dealer’s service center or another qualified  
service center or repair shop.  
Warning  
Vehicle batteries that are not compatible can  
damage vehicle systems and impair vehicle  
functions. There is a risk of an accident and  
damage to property. Only vehicle batteries that  
are compatible with your vehicle type should be  
installed in your vehicle. Information on com‐  
patible vehicle batteries is available at your  
dealer’s service center.  
Warning  
Intensive brightness can irritate or damage the  
retina of the eye. There is a risk of injury. Do not  
look directly into the headlights or other light  
sources. Do not remove the LED covers.  
Register the battery to the  
vehicle  
The manufacturer of the vehicle recommends  
that you have a service center or another quali‐  
fied service center or repair shop register the ve‐  
hicle battery to the vehicle after the battery has  
been replaced. Once the battery has been regis‐  
tered again, all comfort features will be available  
without restriction and any Check Control mes‐  
Headlight glass  
The inside of the headlight glass can fog up in  
cool or humid weather. When driving with the  
lights switched on, the condensation evaporates  
after a short time. The headlight glass does not  
need to be changed.  
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Replacing components  
MOBILITY  
sages displayed which relate to comfort features  
starting aid terminals in the engine compart‐  
will disappear.  
ment.  
Charging the battery  
General information  
Make sure that the battery is always sufficiently  
charged to guarantee that the battery remains  
usable for its full service life.  
Charging the battery  
Charge the battery only when the engine is off  
and via the starting aid terminals in the engine  
compartment.  
Additional information:  
Starting aid terminals, refer to page 364.  
A discharged battery is indicated by a red  
indicator light.  
Power interruption  
After a power interruption, some equipment  
needs to be newly initialized or individual settings  
updated, for example:  
Charge the battery when acceleration is insuffi‐  
cient.  
The maximum charging voltage is 14.4 volts.  
The following circumstances can have a negative  
effect on the performance of the battery:  
With Memory function: store the positions  
again.  
Frequent short-distance drives.  
Time: update.  
The vehicle is not used for more than a  
month.  
Date: update.  
Glass sunroof: initialize the system.  
Safety information  
Disposing of old batteries  
Have old batteries disposed of by a deal‐  
er’s service center or another qualified  
service center or repair shop or take  
them to a collection point.  
NOTICE  
Non-compatible external chargers can damage  
the vehicle. There is a risk of an accident and  
damage to property. Only loading devices that  
are compatible with your vehicle and that are  
below the maximum charge voltage should be  
used to charge your vehicle. Information on  
compatible chargers is available at your dealer’s  
service center.  
Maintain the filled battery in an upright position  
for transport and storage. Secure the battery so  
that it does not tip over during transport.  
Fuses  
General information  
NOTICE  
The fuses are located at different places in the  
vehicle.  
Battery chargers that charge the vehicle battery  
via sockets or cigarette lighters in the vehicle  
may overload or damage the 12 V electrical  
system. There is a risk of damage to property,  
among other potential damage. Only connect  
battery chargers for the vehicle battery to the  
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Replacing components  
MOBILITY  
Information on the fuse layout, as well as the po‐  
sitions of any other fuse boxes, is available on the  
Safety information  
Warning  
Incorrect and repaired fuses can overload elec‐  
trical lines and components. There is a risk of  
fire. Never attempt to repair a blown fuse. Do  
not replace a nonworking fuse with a substitute  
of another color or amperage rating.  
Additional fuse boxes  
Additional fuse boxes are located in the vehicle.  
In the case of a malfunction, contact a dealer's  
service center or another qualified service center  
or repair shop.  
Replacing fuses  
In the car's interior  
The vehicle manufacturer recommends that you  
have a dealer's service center or another quali‐  
fied service center or repair shop replace the  
fuses.  
The fuses are located in the car's interior in the  
front passenger floor area behind a cover.  
Loosen fasteners, arrows, and open cover.  
The fuse box is located on the front right.  
In the cargo area  
The fuses are located in the cargo area on the  
right side behind a cover.  
Remove the cover on the right side trim.  
The fuse box may be located behind the sound  
insulation.  
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