Volvo XC40 (2021 year). Manual in english - page 33

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MAINTENANCE AND SERVICE

566

WARNING

If the starter battery is disconnected, the

function for automatic opening and closing

must be reset to function correctly. A reset

is required in order for the pinch protection

to work.

CAUTION

On certain models, the battery is secured
with a tensioning strap. Make sure that the
tensioning strap is always securely tight-
ened.

Specifications for starter battery

Battery type

H6 AGM

Voltage (V)

12

Cold start capacity

A

 - CCA

B

 (A)

760

Dimensions, L×W×H

278×175×190 mm (10.9×6.9×7.5 inches)

Capacity (Ah)

70

A

According to EN standard.

B

Cold Cranking Amperes.

Volvo recommends that batteries are replaced
by an authorized Volvo workshop.

CAUTION

If replacing the battery, make sure you
replace it with a battery of the same size,
cold start capacity and type as the original
battery (see the decal on the battery).

Related information

•

Battery symbols (p. 569)

•

Support battery (p. 567)

•

Jump starting using another battery
(p. 410)

•

Reset procedure for pinch protection
(p. 160)

•

Battery recycling (p. 569)

MAINTENANCE AND SERVICE

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567

Support battery

Vehicles with the Start/Stop function are
equipped with two batteries – a more power-
ful 12 V start battery and a support battery
that provides stronger current during the
function's start sequence.

The 12 V support battery is located in the engine

compartment. The start battery is also shown here

(top).

If the vehicle is instead equipped with a 48 V support

battery, it is located to the left in the cargo compart-

ment. Only an authorized workshop may handle the

48 V support battery.

WARNING

High voltage may be dangerous if handled

incorrectly. Do not touch anything on bat-

teries that is not clearly described in this

•

Never use a 48 V support battery to
jump start the vehicle.

•

External electrical equipment may not
under any circumstance be connected
to the 48 V battery.

•

Only a workshop may replace or per-
form service on the 48 V battery – an
authorized Volvo workshop is recom-
mended.

NOTE

•

The higher the current consumption in
the vehicle, the more the alternator has
to work and the batteries have to be
charged = increased fuel consumption.

•

When the starter battery capacity has
dropped below the lowest permissible
level, the Start/Stop function is disen-
gaged.

When the Start/Stop function is temporarily
reduced due to high current consumption:

•

The engine will auto-start, even if the
driver does not lift their foot from the
brake pedal.

The support battery does not normally require
more service than the start battery. If you have
any questions or concerns, consult a work-
shop 

‒ 

an authorized Volvo workshop is rec-

ommended.

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MAINTENANCE AND SERVICE

568

CAUTION

If the following is not observed, the Start/
Stop function may temporarily stop work-
ing after connection of an external starter
battery or battery charger:

•

The negative battery terminal of the
vehicle's starter battery must 

never

 be

used to connect an external starter
battery or battery charger – only the

vehicle's negative charging point

should be used as a grounding point.

NOTE

If the starter battery has been discharged
to the extent that the vehicle does not have
normal electrical functions and the engine
must then be jump-started with an external
battery or a battery charger, the Start/Stop
function may remain activated. If the Start/
Stop function shortly thereafter auto-stops
the engine, there is a huge risk that auto-
start of the engine will fail due to insuffi-
cient battery capacity since the battery had
not had time to recharge.

If the vehicle has been jump-started or if
there has not been enough time for the
battery to be charged with a battery
charger, the Start/Stop function should be
temporarily deactivated until the battery
has been recharged by the vehicle. At an
ambient temperature of about +15°C
(about 60°F), the battery must be charged
by the vehicle for at least one hour. At
lower ambient temperatures, the charging
time can increase to 3-4 hours. It is advisa-
ble to charge the battery with an external
battery charger.

Specifications for support battery

Type

AGM

Voltage (V)

12

Cold start capacity

A

 -

CCA

B

 (A)

170

Dimensions, L×W×H

150×90×130 mm

(5.9×3.5×5.1

inches)

Capacity (Ah)

10

A

According to EN standard.

B

Cold Cranking Amperes.

CAUTION

If replacing the battery, make sure you
replace it with a battery of the same size,
cold start capacity and type as the original
battery (see the decal on the battery).

Related information

•

Starter battery (p. 565)

•

Start/Stop function (p. 394)

•

Battery symbols (p. 569)

•

Battery recycling (p. 569)

MAINTENANCE AND SERVICE

569

Battery symbols

There are warning symbols and information
on the batteries.

Wear protective goggles.

for additional information.

Keep batteries away from

children.

Batteries contain corro-

sive acid.

Avoid smoking, open

flames, and/or sparks.

Risk of explosion.

Recycle properly.

Related information

•

Starter battery (p. 565)

•

Support battery (p. 567)

•

Battery recycling (p. 569)

Battery recycling

Start batteries and support batteries must be
recycled in an environmentally sound manner
at the end of their service life.

Consult a workshop if you are uncertain of
how to dispose of this type of waste 

‒ 

an

authorized Volvo workshop is recommended.

Related information

•

Starter battery (p. 565)

•

Support battery (p. 567)

•

Battery symbols (p. 569)

MAINTENANCE AND SERVICE

570

Fuses and fuseboxes

All electrical functions and components are
protected by a number of fuses in order to
protect the vehicle's electrical system from
damage by short circuiting or overloading.

WARNING

Never use a foreign object or a fuse with a

higher amperage than that specified to

replace a fuse. This could cause significant

damage to the electrical system and possi-

bly lead to a fire.

If any electrical component or function is not
responding, the component may have blown a
fuse due to temporary overload. If the same
fuse blows repeatedly, there may be a prob-
lem with the component. Volvo recommends
contacting an authorized Volvo workshop to
have the component checked.

Location of fuseboxes

Engine compartment

Under the left front seat

Related information

•

Replacing fuses (p. 570)

•

Fuses in the engine compartment
(p. 572)

•

Fuses under the left front seat (p. 578)

Replacing fuses

All electrical functions and components are
protected by a number of fuses in order to
protect the vehicle's electrical system from
damage by short circuiting or overloading.

1. Refer to the fuse diagram to locate the

fuse.

2. Pull out the fuse and examine it from the

side to determine if the curved metal wire
in the fuse is intact.

3. If the wire is broken, replace the fuse with

a new fuse of the same color and amper-
age.

WARNING

Never use a foreign object or a fuse with a

higher amperage than that specified to

replace a fuse. This could cause significant

damage to the electrical system and possi-

bly lead to a fire.

WARNING

Contact an authorized Volvo workshop for

assistance replacing fuses not listed in the

performed incorrectly, significant damage

can be caused to the electrical system.

MAINTENANCE AND SERVICE

571

Related information

•

Fuses and fuseboxes (p. 570)

•

Fuses in the engine compartment
(p. 572)

•

Fuses under the left front seat (p. 578)

MAINTENANCE AND SERVICE

572

Fuses in the engine compartment

The fuses in the engine compartment help
protect electrical components such as engine
and brake functions.

MAINTENANCE AND SERVICE

}}

* Option/accessory.

573

Fuse pliers are provided on the inside of the
fuse box cover to assist in removing and
inserting fuses.

There are also spaces for several extra fuses in
the fusebox.

Positions

There is a decal with a diagram of the loca-
tions of the fuses on the inside of the cover.

Function

Ampere

Type

USB port tunnel console, rear

*

5

Micro

Double USB port tunnel console, rear

*

7.5

Micro

12 V outlet in tunnel console, front

15

Micro

–

–

Micro

12 V outlet in trunk/cargo compartment

*

15

Micro

Engine control module

20

Micro

Ignition coils; spark plugs

15

Micro

Solenoids (gasoline); valve; Engine cooling system thermostat (gasoline); EGR cooling pump (diesel); glow control
module (diesel)

Engine control module

15

Micro

Solenoids (gasoline); Valve; Engine cooling system thermostat (gasoline); EGR cooling pump (diesel); Glow control
module (diesel); Vacuum regulators; Valve; Valve for power pulse (diesel)

Valves for cooling

A

10

15

A

Micro

Heated oxygen sensor, center (gasoline); Heated oxygen sensor, rear (diesel)

15

Micro

Nitrous oxide sensor (diesel); Engine control module

15

Micro

Coolant pump

20

Micro

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MAINTENANCE AND SERVICE

* Option/accessory.

574

Function

Ampere

Type

Right-side headlight

20

Micro

Left-side headlight

20

Micro

Airbags

5

Micro

Accelerator pedal sensor

5

Micro

Fed when ignition is on: engine control module, transmission components, electrical power steering, central electrical
module, brake system control module

5

Micro

Auxiliary electric heater

*

OBD-II firewall

5

Micro

–

–

Micro

–

–

Micro

Internal relay windings

5

Micro

–

–

Micro

Brake pedal sensor

5

Micro

Calculation module

5

Micro

Control module for actuator for engaging/changing gears, automatic transmission

5

Micro

Hydraulic clutch actuator

25

Micro

Transmission control module

15

Micro

Hydraulic clutch actuator

25

Micro

MAINTENANCE AND SERVICE

}}

* Option/accessory.

575

Function

Ampere

Type

Engine control module

5

Micro

–

–

Micro

–

–

Micro

Horn

20

Micro

Alarm siren

*

5

Micro

Wipers

30

MCase

B

Brake system control module (valves, parking brake)

40

MCase

B

Brake system control module (ABS pump)

40

MCase

B

–

–

MCase

B

Transmission actuator

25

MCase

B

Transmission actuator

30

MCase

B

–

–

–

Right-hand headlight; Left-hand headlight

30

MCase

B

Brake control with 48 V battery

30

MCase

B

–

–

MCase

B

Towbar

*

 control module

25

MCase

B

Towbar

*

 control module

40

MCase

B

||

MAINTENANCE AND SERVICE

* Option/accessory.

576

Function

Ampere

Type

–

–

MCase

B

Power driver seat

*

20

MCase

B

–

–

MCase

B

–

–

Micro

–

–

Micro

–

–

Micro

–

–

Micro

–

–

Micro

Fuel filter heater (diesel)

30

MCase

B

–

–

MCase

B

–

–

MCase

B

Support battery check function

5

Micro

Left-side headlight

20

Micro

Right-side headlight

20

Micro

A

Gasoline engines generation 3 (VEP4_G3).

B

This type of fuse should be replaced by a workshop. An authorized Volvo workshop is recommended.

MAINTENANCE AND SERVICE

577

Related information

•

Fuses and fuseboxes (p. 570)

•

Replacing fuses (p. 570)

MAINTENANCE AND SERVICE

578

Fuses under the left front seat

Fuses under the left front seat provide pro-
tection for e.g. electrical outlets, displays and
door modules.

MAINTENANCE AND SERVICE

}}

* Option/accessory.

579

There are spaces for several extra fuses in the

distribution box in the engine compartment

.

Fuse pliers are provided on the inside of the

fuse box cover to assist in removing and
inserting fuses.

Positions

There is a decal with a diagram of the loca-
tions of the fuses on the inside of the cover.

Function

Ampere

Type

Infotainment control module (amplifier)

A

40

MCase

B

Central Electric Module A: Sensors, radar sensors, power seats

*

40

MCase

B

Central Electric Module B: Sensors, radar sensors, power seats

*

40

MCase

B

Climate system blower module (front)

40

MCase

B

Power tailgate

*

25

MCase

B

Power seat

*

, right

20

MCase

B

Parking heater

*

25

MCase

B

Control module for reduction of nitrous oxides (diesel)

30

MCase

B

Door module in right-side rear door

20

Micro

Door module in left-side rear door

20

Micro

Door module in left-side front door

20

Micro

–

–

Micro

Door module in right-side front door

20

Micro

Seat heating, rear

*

15

Micro

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MAINTENANCE AND SERVICE

* Option/accessory.

580

Function

Ampere

Type

48 V battery module

5

Micro

Calculation module

5

Micro

Control module for reduction of nitrous oxides (diesel)

15

Micro

–

–

Micro

Climate system control module

7.5

Micro

Interior movement sensors

*

5

Micro

Instrument panel

5

Micro

Center console buttons

5

Micro

Steering wheel module

5

Micro

Module for start knob; Electronic gear module; Electronic parking brake

5

Micro

Center display

5

Micro

Control module for Internet-connected vehicle; Control module for Volvo On Call

5

Micro

Multi-band antenna module

5

Micro

Relay coils

5

Micro

Foot movement detection module for opening the power tailgate

*

5

Micro

Sensus control module

TV

*

C

15

Micro

MAINTENANCE AND SERVICE

}}

* Option/accessory.

581

Function

Ampere

Type

Data link connector OBD-II

10

Micro

–

–

Micro

Lock motor for rear seat head restraint, left side

15

Micro

Lock motor for rear seat head restraint, right side

15

Micro

Heated rear window

30

MCase

B

Seat belt tensioner module (left side)

40

MCase

B

Seat belt tensioner module (right side)

40

MCase

B

Humidity sensor

48 V generator and voltage converter

5

Micro

Fuel pump control module

20

Micro

Coolant pump

7.5

Micro

Heated steering wheel

*

 module

15

Micro

Air humidity sensors

5

Micro

Headlight washers

*

25

MCase

B

Windshield and tailgate window washers

25

MCase

B

–

–

MCase

B

–

–

MCase

B