Get MOBILITY -> Replacing components Guide for BMW 4 Series 4 Door Second Generation (2020-2025)

Replacing components

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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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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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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

▷

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.

▷

Parking brake, refer to page 126.

With Memory function: store the positions

again.

▷

Time: update.

Date: update.

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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-

331

MOBILITY -> Replacing components for Your BMW 4 Series 4 Door Second Generation (2020-2025)

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