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EnglishMOBILITY -> Replacing components for your BMW 4 Series 2020-2025
Replacing components
MOBILITY
Replacing components
Vehicle features and options
NOTICE
Folded-out wipers can be jammed when the
hood is opened. There is a risk of damage to
property. Make sure that the wipers with the
wiper blades mounted are folded down onto
the windshield before opening the hood.
This chapter describes model-specific equip-
ment, systems, and functions that are currently
available, or may become available in the fu-
ture, even if they are not present in the vehicle.
Additional information:
Vehicle equipment, refer to page 8.
Replacing the wiper blades
1. To change the wiper blades, bring wipers
into fold-out position.
Onboard vehicle tool kit
Fold-out position of the wipers, refer to
page 161.
2. Fold out and hold the wiper arm firmly.
3. Squeeze the retaining spring, arrow 1, and
fold up the wiper blade, arrow 2.
The on-board toolkit is located in the left stor-
age compartment in the cargo area, under a
cover.
Wiper blades
Safety information
NOTICE
4. Remove the wiper blade forward from the
detent.
5. Insert the new wiper blade in reverse order
of removal until it locks in place.
6. Fold in 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. Hold
the wiper firmly when changing the wiper
blade. Do not fold in or switch on the wiper
without a wiper blade installed.
Lights and bulbs
General information
Lights and bulbs make an essential contribu-
tion to driving safety.
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Replacing components
MOBILITY
All headlights and lights are designed using
LED technology at least.
More information on the battery can be re-
quested from an authorized service center or
another qualified service center or repair shop.
In the event of a malfunction, the vehicle man-
ufacturer recommends having any necessary
work performed by an authorized service cen-
ter or another qualified service center or repair
shop.
Safety information
DANGER
Contact with live components can lead to an
electric shock. There is a risk of injury or dan-
ger to life. Do not touch any components that
are under voltage.
Safety information
Warning
Focused laser light can irritate or perma-
nently damage the retina of the eye. There
is a risk of injury. The vehicle manufacturer
recommends having work on the lighting sys-
tem, including bulb replacement, performed
by an authorized service center or another
qualified service center or repair shop.
Warning
Vehicle batteries that are not recommended
can damage vehicle systems and impair ve-
hicle functions. There is a risk of accident,
injury, or property damage. Only use vehicle
batteries recommended by the vehicle manu-
facturer. For information on suitable vehicle
batteries, contact an authorized service cen-
ter or another qualified service center or re-
pair shop.
Warning
Intense 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.
Registering the battery to the
vehicle
Headlight glass
The vehicle manufacturer recommends hav-
ing an authorized service center or another
qualified service center or repair shop register
the vehicle battery to the vehicle after the bat-
tery has been changed. Once the battery has
been registered again, all comfort features will
be available without limitation and any Check
Control messages displayed which relate to
comfort features will disappear.
The inside of the headlight glass can fog up
in cool or humid weather. When driving with
the lights switched on, the condensation evap-
orates after a short time. The headlight glass
does not need to be changed.
If, despite driving with the headlights switched
on, moisture such as water droplets increas-
ingly forms in the light, have the headlights
checked.
Charging the battery
Vehicle 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.
General information
The battery is maintenance-free.
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Replacing components
MOBILITY
A discharged battery is indicated by a
red indicator light.
Deep sleep mode
Use deep sleep mode for long stationary peri-
ods.
Charge the battery when acceleration is insuffi-
cient.
Additional information:
Deep sleep mode, refer to page 43.
The following circumstances can have a nega-
tive effect on the performance of the battery:
Mild Hybrid technology
â–·
â–·
Frequent short-distance drives.
Stationary periods of more than one month.
Principle
Part of the Mild Hybrid technology is a battery
that works with a voltage of 48 volts. Mild Hy-
brid technology can lower the fuel consump-
tion.
Safety information
Warning
Battery chargers that charge the vehicle bat-
tery via sockets or cigarette lighters in the ve-
hicle may overload or damage the 12 V elec-
trical system. There is a risk of injury or risk
of damage to property. Only connect battery
chargers for the vehicle battery to the jump-
start terminals in the engine compartment.
Safety information
DANGER
Contact with live components can lead to an
electric shock. There is a risk of injury or dan-
ger to life. Do not touch any components that
are under voltage.
Charging the battery
Charge the battery only when the engine is off
and via the jump-start terminals in the engine
compartment.
Overview
With Mild Hybrid technology: charge the bat-
tery only when the hood is opened.
Additional information:
Jump-start terminals, refer to page 336.
Power interruption
After a power interruption, some equipment
needs to be newly initialized or individual set-
tings updated, for example:
The battery for the Mild-Hybrid technology is
located under a cover in the engine compart-
ment on the front passenger side.
â–·
â–·
Parking brake, refer to page 126.
With Memory function: store the positions
again.
â–·
â–·
Time: update.
Date: update.
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Replacing components
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Removing the cover
1. Turn lid up to the opened lock icon
row 1.
Safety information
ar-
Warning
Incorrect and repaired fuses can overload
electrical 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 rat-
ing.
Replacing fuses
2. Remove cover, arrow 2.
The vehicle manufacturer recommends having
the fuses replaced by an authorized service
center or another qualified service center or
repair shop.
Notice
Do not exchange or work on the battery for the
Mild Hybrid technology.
Disposing of old batteries
Have old batteries disposed of by an
authorized service center or another
qualified service center or repair shop,
or take them to a collection point.
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
The fuses are located at different places in the
vehicle.
Information on the fuse layout and the posi-
tions of the fuse boxes is available on the In-
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