Volvo S90 (2019 year). Instruction

MAINTENANCE AND SERVICE

590

Start battery

The vehicle has a single-pole electrical system
that uses the chassis and engine mount as con-
ductors.

The start battery is used to start the electrical
system and power the starter motor and other
electrical equipment in the vehicle.

The start battery should only be replaced by a
workshop

The vehicle has a voltage-regulated alternating
current generator.

The start battery is a 12 V battery, designed for
the carbon dioxide reducing functions Start/Stop
and regenerative charging, and to support the
functionality of the car's different systems.

The service life and performance of the start bat-
tery are affected by factors such as driving style,
driving conditions, climate, battery discharges,
number of starts, etc.

•

Never disconnect the start battery while the
engine is running.

•

Make sure the cables to the start battery are
correctly connected and the clamps are
securely tightened.

WARNING

•

Batteries generate hydrogen gas, which
is flammable and explosive.

•

Do not connect the jumper cable to any
part of the fuel system or to any moving
parts. Avoid touching hot manifolds.

•

Battery fluid contains sulfuric acid. Do not
allow battery fluid to contact eyes, skin,
fabrics or painted surfaces.

•

If contact occurs, flush the affected area
immediately with water. Obtain medical
help immediately if eyes are affected.

•

Never expose the battery to open flame
or electric spark. Do not smoke near the
battery. Failure to follow the instructions
for jump starting can lead to injury.

Connection points

WARNING

PROPOSITION 65 WARNING

Battery posts, terminals, and related accesso-

ries contain lead and lead compounds, chemi-

cals known to the state of California to cause

cancer and reproductive harm. Wash hands

after handling.

Use the vehicle's connection points in the engine
compartment to connect an external start battery
or battery charger.

The battery terminals on the car's start battery in
the luggage/cargo area must not be used.

If the start battery is being charged, the support
battery will also be charged.

Positive connection point

Negative connection point

An authorized Volvo workshop is recommended.

MAINTENANCE AND SERVICE

}}

591

CAUTION

Only a modern battery charger with controlled
charge voltage should be used to charge the
starter battery and support battery. The rapid
charging function should not be used as this
could damage the battery.

CAUTION

Failure to observe the following could cause
the infotainment energy save mode to tempo-
rarily stop working and/or a message in the
driver's display regarding the state of charge
of the starter battery may be temporarily
incorrect after an external starter battery or
battery charger has been connected:

•

The negative battery terminal of the vehi-
cle's starter battery must never be used
to connect an external starter battery or
battery charger – only the vehicle's neg-
ative charging point should be used as
a grounding point.

NOTE

If the starter battery becomes discharged too
many times, it will shorten its service life.

The service life of the starter battery is affec-
ted by several factors, such as driving condi-
tions and climate. The starting capacity of the
battery reduces gradually over time. The bat-
tery must therefore be recharged if the vehi-
cle is not used or a long period of time or if it
is only driven short distances. Severe cold fur-
ther limits the starting capacity.

To keep the starter battery in a good condi-
tion, the vehicle should be driven at least
15 minutes per week or the battery should be
connected to a battery charger with automatic
trickle charging.

A starter battery that is always kept fully
charged has the maximum service life.

Location

The start battery is located in the trunk.

WARNING

If the starter battery is disconnected, the func-

tion 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 ten-
sioning strap is always securely tightened.

MAINTENANCE AND SERVICE

592

Specifications for start battery

Battery type

H7 AGM

H8 AGM

Voltage (V)

Cold start capacity

- CCA

(A)

800

850

Dimensions, L×W×H

315×175×190 mm (12.4×6.9×7.5 inches)

353×175×190 mm (13.9×6.9×7.5 inches)

Capacity (Ah)

According to EN standard.

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. 594)

•

Support battery (p. 593)

•

Jump starting using another battery (p. 446)

MAINTENANCE AND SERVICE

}}

593

Support battery

In addition to the start battery, vehicles equipped
with the Start/Stop function also have a support
battery.

Vehicles with the Start/Stop function are equip-
ped with two 12-volt batteries

‒ a heavy-duty

start battery and a support battery that provides
extra current during the Start/Stop function's
start sequence.

The support battery is located in a box next to the spring
strut in the engine compartment.

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 workshop

‒

an authorized Volvo workshop is recommended.

CAUTION

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

•

MAINTENANCE AND SERVICE

594

NOTE

If the starter battery is 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 insufficient 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 bat-
tery to be charged with a battery charger, it is
advisable to temporarily deactivate the
Start/Stop function until the battery has been
recharged by the vehicle. At an ambient tem-
perature of about +15°C (about 60°F), the
battery must be charged by the vehicle for at
least one hour. At lower ambient tempera-
tures, the charging time can increase to
3-4 hours. It is advisable to charge the battery
with an external battery charger.

Specifications for support battery

Voltage (V)

Cold start capacity

CCA

(A)

170

Dimensions, L×W×H

150×90×130 mm

(5.9×3.5×5.1

inches)

Capacity (Ah)

According to EN standard.

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

•

Start battery (p. 590)

•

Start/Stop function (p. 431)

•

Battery symbols (p. 594)

Battery symbols

There are warning symbols and information on
the batteries.

Wear protective goggles.

See the Owner's Manual for

additional information.

Keep batteries away from

children.

Batteries contain corrosive

acid.

MAINTENANCE AND SERVICE

595

Avoid smoking, open

flames, and/or sparks.

Risk of explosion.

Recycle properly.

NOTE

A used start battery or backup battery con-
tains lead and must be recycled in an environ-
mentally responsible manner.

Related information

•

Start battery (p. 590)

•

Support battery (p. 593)

Fuses and fuseboxes

All electrical functions and components are pro-
tected 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 possibly

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 problem with
the component. Volvo recommends contacting an
authorized Volvo workshop to have the compo-
nent checked.

Location of fuseboxes

The illustration is generic - appearance may vary accord-
ing to vehicle model.

Engine compartment

Under the glove compartment

Trunk/cargo compartment

Related information

•

Replacing fuses (p. 596)

•

Fuses in the trunk (p. 603)

•

Fuses in the engine compartment (p. 597)

•

Fuses under the glove compartment
(p. 600)

MAINTENANCE AND SERVICE

596

Replacing fuses

All electrical functions and components are pro-
tected 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 amperage.

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 possibly

lead to a fire.

WARNING

Contact an authorized Volvo workshop for

assistance replacing fuses not listed in the

Owner's Manual. If performed incorrectly, sig-

nificant damage can be caused to the electri-

cal system.

Related information

•

Fuses and fuseboxes (p. 595)

•

Fuses in the trunk (p. 603)

•

Fuses in the engine compartment (p. 597)

•

Fuses under the glove compartment
(p. 600)

MAINTENANCE AND SERVICE

* Option/accessory.

598

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 locations
of the fuses on the inside of the cover.

•

Fuses 1-13, 18-30, 35-37 and 46-54 are
"Micro" fuses.

•

Fuses 14-17, 31-34 and 38-45 are
"MCase" fuses and should only be replaced
by a workshop

Function

Ampere

–

Ignition coils (gasoline); spark
plugs (gasoline)

Oil pump solenoid; A/C mag-
netic coupling; heated oxygen
sensor, center (gasoline);
heated oxygen sensor, rear
(diesel)

Function

Ampere

Vacuum regulators; valve;
valve for power pulse (diesel)

7.5

Engine control module; actua-
tor; throttle unit; EGR valve
(diesel); turbo position sensor
(diesel); turbocharger valve
(gasoline)

Engine control module

–

Solenoids (gasoline); valve;
Engine cooling system ther-
mostat (gasoline); EGR cool-
ing pump (diesel); glow control
module (diesel)

Spoiler shutter control module;
Radiator shutter control mod-
ule; Relay windings for power
pulse (diesel)

–

Engine control module

Starter motor

Shunt

Function

Ampere

Fuel filter heater (diesel)

–

Front USB port in tunnel con-
sole, rear*

12 V outlet in tunnel console,
front

12 V outlet in tunnel console
between rear seats

12 V outlet in trunk/cargo
compartment*

–

An authorized Volvo workshop is recommended.

MAINTENANCE AND SERVICE

* Option/accessory.

599

Function

Ampere

–

Heated windshield*, left side

Shunt

Heated windshield*, left side

Headlight washers*

Windshield washer

Transmission control module

Horn

Alarm siren*

Brake system control module
(valves, parking brake)

Wipers

–

Heated windshield*, right side

–

Brake system control module
(ABS pump)

–

Heated windshield*, right side

Shunt

Function

Ampere

Fed when ignition is on:
engine control module, trans-
mission components, electrical
power steering, central electri-
cal module, brake system con-
trol module

–

Right-side headlight

7.5

–

Battery connection control
module

Airbags

Left-side headlight

7.5

Accelerator pedal sensor

Related information

•

Fuses and fuseboxes (p. 595)

•

Replacing fuses (p. 596)

MAINTENANCE AND SERVICE

}}

* Option/accessory.

601

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 distribution box in the engine compart-
ment.

Positions

•

Fuses 1, 3-21, 23-36, 39-53 and 55-59 are
"Micro" fuses.

•

Fuses 2-22, 37-38 and 54 are "MCase"
fuses and should only be replaced by a work-
shop

Function

Ampere

–

Electrical outlet in tunnel con-
sole between rear seats*

–

Movement sensor*

Instrument panel

Center console buttons

Function

Ampere

Sun sensor

Sensus control module

–

Steering wheel module

Module for start knob and
parking brake controls

Heated steering wheel* mod-
ule

–

Climate system control mod-
ule

–

Data link connector OBD-II

Center display

Function

Ampere

Climate system blower module
(front)

USB HUB

Instrument lighting; Interior
lighting; Rearview mirror auto-
dim function*; Rain and light
sensors*; Rear tunnel console
keypad, rear seat*; Power front
seats*; Rear door control pan-
els; Climate system blower
module left/right

7.5

Control module for driver sup-
port functions

Panoramic roof with sun cur-
tain*

Head-up display*

Passenger compartment light-
ing

–

Ceiling console display (seat
belt reminder/front passenger
side airbag indicator)

–

An authorized Volvo workshop is recommended.

MAINTENANCE AND SERVICE

* Option/accessory.

602

Function

Ampere

Humidity sensor

Door module in right-side rear
door

Fuses in the trunk/cargo com-
partment

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

Door module in left-side rear
door

Audio control module (ampli-
fier) (certain models only)

–

Multi-band antenna module

Front seat massage function*

–

Rear door sun curtain modules

Fuel pump control module

–

Function

Ampere

Driver's seat heating

Front passenger's seat heat-
ing

Coolant pump

–

Door module in left-side front
door

Active chassis control module*

–

Sensus control module

–

Door module in right-side
front door

–

TV* (certain markets only)

Primary fuse for fuses 9, 53
and 58

Related information

•

Fuses and fuseboxes (p. 595)

•

Replacing fuses (p. 596)

MAINTENANCE AND SERVICE

}}

* Option/accessory.

605

Positions

•

Fuses 13-17 and 21-36 are "Micro" fuses.

•

Fuses 1-12, 18-20 and 37 are "MCase"
fuses and should only be replaced by a work-
shop

Function

Ampere

Heated rear window

–

Pneumatic suspension* com-
pressor

Lock motor for rear seat back-
rest, right side

–

Lock motor for rear seat back-
rest, left side

–

Power trunk release*

Power front passenger seat*

Towbar* control module

Function

Ampere

Seat belt tensioner module
(right side)

Internal relay windings

–

Foot movement detection
module for opening the power
trunk release*

USB hub/accessory port

–

Towbar* control module

Accessory module

Power driver seat*

Seat belt tensioner module
(left side)

Park Assist Camera*

–

Function

Ampere

–

Control module for airbags
and seat belt tensioners

–

Heated rear seat (left side)*

–

Blind Spot Information
(BLIS)*; Exterior reverse signal
control module

–

Modules for seat belt tension-
ers

Emissions system actuator
(gasoline, certain engine vari-
ants)

–

All Wheel Drive (AWD) control
module*

Heated rear seat (right side)*

–

An authorized Volvo workshop is recommended.

MAINTENANCE AND SERVICE

}}

607

Cleaning the interior

Only use cleaning agents and car care products
recommended by Volvo. Clean regularly and
treat stains immediately for best results. It is
important to vacuum before using a cleaning
agent.

CAUTION

•

Some colored clothing (for example, dark
jeans and suede garments) may stain the
upholstery. If this occurs, it is important to
clean and treat these parts of the uphols-
tery as soon as possible.

•

Never use strong solvents such as
washer fluid, gasoline, mineral spirit or
concentrated alcohol to clean the interior
as this can damage the upholstery as
well as other interior materials.

•

Never spray cleaning agent directly onto
components that have electrical buttons
and controls. Wipe instead with a damp
cloth with cleaning agent.

•

Sharp objects and Velcro can damage
the car's textile upholstery.

Related information

•

Cleaning the center display (p. 607)

•

Cleaning fabric upholstery and ceiling liner
(p. 609)

•

Cleaning the seat belt (p. 609)

•

Cleaning floor mats and inlay mats (p. 609)

•

Cleaning leather upholstery (p. 610)

•

Cleaning the leather steering wheel
(p. 611)

•

Cleaning interior plastic, metal and wood sur-
faces (p. 612)

Cleaning the center display

Marks, stains, finger smudges etc. on the center
display may affect its performance and readabil-
ity. Clean the screen regularly with a microfiber
cloth.

To clean the center display:

1. Turn off the center display by pressing and

holding the Home button.

2. Wipe the screen clean with the microfiber

cloth provided or use another microfiber
cloth of similar quality. Wipe the screen with
a clean, dry microfiber cloth using small, cir-
cular motions. If necessary, moisten the cloth
slightly.

3. Reactivate the display by pressing the Home

button briefly.

Volvo S90 (2019 year). Instruction - part 35