Volvo XC90 Twin Engine (2019 year). Manual

MAINTENANCE AND SERVICE

* Option/accessory.

621

Hood completely closed. The illustration is generic -
details may vary according to vehicle model.

WARNING

Never drive with the hood open!
If there are any indications while driving that

the hood is not completely closed, stop imme-

diately and close it securely.

Related information

•

Engine compartment overview (p. 622)

•

Door and seat belt reminders (p. 51)

Climate control system service

Service and repairs on the air conditioning sys-
tem should only be done by an authorized work-
shop.

Troubleshooting and repairs

The air conditioning system contains a fluores-
cent tracer substance. Ultraviolet light is used to
search for leaks in the system.

Volvo recommends contacting an authorized
Volvo workshop.

Vehicles with R134a refrigerant

WARNING

The air conditioning system contains the

refrigerant R134a under pressure. Service

and repairs to the system should only be done

by an authorized workshop.

Related information

•

Volvo's service program (p. 610)

Replacing a windshield with head-

up display*

Vehicles with a head-up display have a special
type of windshield that meets the requirements
for displaying projected information.

Volvo recommends contacting an authorized
Volvo workshop for assistance replacing the
windshield. The correct type of replacement
windshield must be used in order for the head-up
display to function properly.

Related information

•

Head-up display* (p. 142)

•

Cleaning the head-up display* (p. 646)

MAINTENANCE AND SERVICE

622

Engine compartment overview

This overview shows some service-related com-
ponents.

Some of the components included in the vehi-
cle's electric drive system are located in the
engine compartment. Exercise caution when
accessing the engine compartment and only
touch what is required for normal maintenance.

WARNING

Orange wiring may only be handled by quali-

fied personnel.

WARNING

Several components in the vehicle work with

high voltage that can be hazardous in case of

an incorrect procedure.

•

Do not touch anything that is not clearly
described in this Owner's Manual.

•

Be careful when checking/filling fluids in
the engine compartment.

The layout of the engine compartment may vary depend-
ing on model and engine variant.

Coolant expansion tank

Brake fluid reservoir (located on the driver's
side)
Washer fluid filler pipe

Fusebox

Air filter

Engine oil filler pipe

WARNING

Bear in mind that the cooling fan (located at

the front of the engine compartment behind

the radiator) may start or continue running

automatically up to about 6 minutes after the

engine is turned off.
Always entrust engine washing to a workshop

– an authorized Volvo workshop is recom-

mended. If the engine is hot, there is a risk of

fire.

WARNING

The ignition system works with extremely high

and dangerous voltages. The vehicle electrical

system should always be in ignition mode 0

when work in being performed in the engine

compartment.
Do not touch any spark plugs or ignition coils

when the vehicle electrical system is in igni-

tion mode II or when the engine is warm.

Related information

•

Opening and closing the hood (p. 620)

•

Filling washer fluid (p. 662)

•

Refilling coolant (p. 625)

•

Fuses in the engine compartment (p. 634)

•

Checking and filling engine oil (p. 624)

•

Ignition modes (p. 437)

Fill the washer fluid at regular intervals, e.g. when refueling.

MAINTENANCE AND SERVICE

623

Engine oil

For the recommended service intervals and war-
ranties to be applied, an approved engine oil
must be used.

Volvo recommends:

If the engine oil is not checked regularly and the
level becomes low, this could cause serious
engine damage.

CAUTION

To satisfy the requirements for the engine's
service intervals, all engines are factory-filled
with a specially adapted synthetic engine oil.
Great care has been put into the choice of oil,
with consideration given to service life, starta-
bility, fuel consumption and environmental
impact.

For the recommended service intervals to
apply, an approved engine oil must be used.
Only use the prescribed oil grade to top off or
change the oil. Otherwise, there is a risk of
the vehicle's service life, startability, fuel con-
sumption and environmental impact being
affected.

Failure to use engine oil of the prescribed
grade and viscosity could cause damage to
engine-related components. Volvo Car Corpo-
ration disclaims warranty liability for such type
of damage.

Volvo recommends entrusting oil changes to
an authorized Volvo workshop.

Volvo uses different systems to warn if the oil
level is too low/high or the oil pressure is low. On
engine variants with an oil pressure sensor, a

warning symbol is displayed in the instrument
panel when oil pressure is low

. On engine

variants with an oil level sensor, the

warn-

ing symbol in the instrument panel and display
messages are used to alert the driver. Some
engine variants have both systems. Contact a
Volvo retailer for more information.

Change the engine oil and oil filter according to
the schedule specified in the Warranty and Main-
tenance Records Information booklet. Oils of a
higher grade than that specified may be used. If
the vehicle is driven in adverse conditions, Volvo
recommends using an oil with a higher grade
than that specified.

Related information

•

Checking and filling engine oil (p. 624)

•

Engine oil specifications (p. 672)

MAINTENANCE AND SERVICE

624

Checking and filling engine oil

The engine oil level is monitored by an electronic
oil level sensor.

Filler pipe

It may be necessary to top up engine oil between
regularly scheduled services.

No action is necessary with regard to engine oil
level until a message appears in the instrument
panel.

WARNING

If this symbol is shown together

with the message

Engine oil level

Service required

, visit a workshop

– an authorized Volvo workshop is

recommended. The oil level may be too high.

CAUTION

If this symbol is shown together
with a message about low oil level,
for example

Engine oil level low

Refill 1 liter

, fill only with the indi-

cated volume, e.g. 1 liter (1 quart).

WARNING

Do not spill oil on the hot exhaust pipes as

this could cause a fire.

Viewing oil level in the center display

The oil level can be viewed using the electronic
oil level gauge in the center display once the
vehicle has been started. The oil level should be
checked regularly.

1. Open the

Car Status

app from App view in

the center display.

2. Tap

Status

to display the oil level.

Oil level graphic in the center display.

NOTE

The system cannot directly detect changes
when the oil is filled or drained. The vehicle
must have been driven approximately 30 km
(20 miles) and have been stationary
5 minutes on a level surface and with the
engine off before the correct oil level will be
displayed.

Engines with an electronic oil level sensor do not have a dipstick.

MAINTENANCE AND SERVICE

}}

625

NOTE

If the conditions for measuring oil level are
not properly fulfilled (time after engine shut-
down, vehicle inclination, ambient tempera-
ture, etc.) the message

No value available

will be shown in the center display. This does
not mean that anything is wrong in the vehi-
cle systems.

Related information

•

Engine oil (p. 623)

•

Engine oil specifications (p. 672)

•

Ignition modes (p. 437)

•

Vehicle status (p. 614)

Refilling coolant

Coolant helps keep the combustion engine at
the right operating temperature. The heat trans-
ferred from the engine to the coolant can be
used to warm the passenger compartment.

When refilling coolant, follow the instructions on
the package. Never fill the cooling system with
only water. The risk of freezing is increased with
too low or too high amounts of coolant.

If there is coolant under the vehicle, smoke from
the cooling system, or if more than 2 liters (about
2 quarts) of coolant has been added to the sys-
tem, there could be something wrong with the
cooling system and starting the vehicle could
damage the engine. Call a tow truck and do not
attempt to start the engine.

WARNING

The coolant may be very hot. Never unscrew

the cap when the coolant is hot. If coolant

must be filled, unscrew the expansion tank

cap slowly to relieve overpressure.

Coolant expansion tank.

MAINTENANCE AND SERVICE

* Option/accessory.

626

Lift the rubber strip by pressing it inward into
the engine compartment.

Remove the plastic cover by folding out the
catch and lifting the cover upward.

Unscrew the expansion tank cap and fill
coolant as needed. The level should be
between the MIN and MAX marks on the
expansion tank.

CAUTION

•

Do not ingest the contents. May cause
damage to organs (kidneys).

•

Use premixed coolant according to Vol-
vo's recommendations. If concentrated
coolant is used, make sure that the cool-
ant mixture is 50% coolant and 50%
water of acceptable quality.

•

Do not mix different types of coolant.

•

To help ensure sufficient corrosion pro-
tection in the system, only use new cool-
ant when replacing larger components in
the cooling system.

•

Never run the engine unless the cooling
system is properly filled. An improperly
filled cooling system could lead to high
temperatures and cracks in the cylinder
heads.

•

High levels of chlorine, chlorides and
other salts may cause corrosion in the
cooling system.

Related information

•

Engine compartment overview (p. 622)

•

Coolant specifications (p. 673)

Replacing bulbs

Halogen headlights are not available on all mod-
els and markets. Contact a Volvo retailer for
more information.

LED

bulbs must be replaced by a workshop.

An authorized Volvo workshop is recommended.

NOTE

For information on lights not mentioned in
this article, contact a Volvo dealer or a certi-
fied Volvo service technician.

NOTE

Exterior lighting such as headlights and tail-
lights may develop temporary condensation
on the inside of the lens. This is normal. All
exterior lighting is designed to resist this.
Condensation is normally vented out of the
lamp housing once the light has been lit for
some period of time.

NOTE

Bulbs for active curve lighting* contain traces
of mercury and should therefore always be
submitted to a certified Volvo service techni-
cian.

LED (Light Emitting Diode)

MAINTENANCE AND SERVICE

}}

627

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 electrical equipment in the
vehicle. The hybrid battery is used to start the
combustion engine.

The start battery should only be replaced by a
workshop

The start battery is a 12 V AGM (Absorbed Glass
Mat) battery, dimensioned for regenerative charg-
ing and to support the function of the vehicle's
various 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.

Positive connection point

Negative connection point

CAUTION

It is not possible to charge another vehicle's
battery by means of current through the
charging points. Using the charging points to
charge another vehicle's battery could cause
a fuse to blow, which would cause the charg-
ing points to stop working.

An authorized Volvo workshop is recommended.

MAINTENANCE AND SERVICE

628

CAUTION

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

NOTE

If both the starter battery and the hybrid bat-
tery are discharged, both batteries must be
charged. In such cases, it is not possible to
charge only the hybrid battery first.

The starter battery must have a certain level
of charge for it to be possible to charge the
hybrid 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.

MAINTENANCE AND SERVICE

}}

629

Location

The start battery is located in the cargo compartment.

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.

Specifications for start battery

Battery type

H8 AGM

Voltage (V)

Cold start capacity

- CCA

(A)

850

Dimensions, L×W×H

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.

MAINTENANCE AND SERVICE

631

Hybrid battery

The vehicle's electric motor is powered by a
rechargeable, maintenance-free, lithium-ion
hybrid battery.

NOTE

The vehicle cannot be started if the hybrid
battery is discharged.

NOTE

If both the starter battery and the hybrid bat-
tery are discharged, both batteries must be
charged. In such cases, it is not possible to
charge only the hybrid battery first.

The starter battery must have a certain level
of charge for it to be possible to charge the
hybrid battery.

WARNING

Hybrid battery replacement may only be per-

formed by a workshop – an authorized Volvo

workshop is recommended.

Coolant

The hybrid battery's cooling system has its own
expansion tank.

CAUTION

Filling the hybrid battery coolant should only
be performed by a workshop – an authorized
Volvo workshop is recommended.

Specifications for hybrid battery

Type: Lithium-ion

Power reserve: 10.4 kWh.

NOTE

The capacity of the hybrid battery decreases
with age and use, which could result in
increased use of the combustion engine,
leading to higher fuel consumption and
reduced electric motor range.

Related information

•

Battery symbols (p. 632)

•

Start battery (p. 627)

•

Charging the hybrid battery (p. 417)

MAINTENANCE AND SERVICE

632

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.

Avoid smoking, open

flames, and/or sparks.

Risk of explosion.

Recycle properly.

NOTE

A used start battery contains lead and must
be recycled in an environmentally responsible
manner.

Related information

•

Start battery (p. 627)

•

Hybrid battery (p. 631)

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.

WARNING

Orange wiring may only be handled by quali-

fied personnel.

WARNING

Several components in the vehicle work with

high voltage that can be hazardous in case of

an incorrect procedure.
Do not touch anything that is not clearly

described in this Owner's Manual.

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.

MAINTENANCE AND SERVICE

633

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. 633)

•

Fuses in the cargo compartment (p. 641)

•

Fuses in the engine compartment (p. 634)

•

Fuses under the glove compartment
(p. 638)

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. 632)

•

Fuses in the cargo compartment (p. 641)

•

Fuses in the engine compartment (p. 634)

•

Fuses under the glove compartment
(p. 638)

MAINTENANCE AND SERVICE

}}

635

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 46–70 are
"Micro" fuses.

•

Fuses 14–17, 31–34, 38–45 and 71–78 are
"MCase" fuses and should only be replaced
by a workshop

Function

Ampere

–

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

High-voltage coolant heater
control module

Function

Ampere

Control module for A/C; heat
exchanger cut-off valve; cut-
off valve for coolant through
the climate system

Hybrid battery control module;
high-voltage converter for
combined high-voltage gener-
ator/starter motor with 500
V–12 V voltage converter

–

Converter for controlling feed
to rear axle electric motor

Hybrid battery control module;
high-voltage converter for
combined high-voltage gener-
ator/starter motor with 500
V–12 V voltage converter

Charge module

Cut-off valve for hybrid battery
coolant; coolant pump 1 for
hybrid battery

Coolant pump for electric drive
system

Function

Ampere

Hybrid component cooling fan

–

12 V outlet in tunnel console,
front

12 V outlet in tunnel console
between second-row seats

12 V outlet in tunnel console,
between rear seats

; USB

ports in tunnel console
between rear seats

An authorized Volvo workshop is recommended.

MAINTENANCE AND SERVICE

* Option/accessory.

636

Function

Ampere

12 V outlet in trunk/cargo
compartment*

USB ports for iPad holders

–

Heated windshield*, left side

Shunt

Heated windshield*, left side

Headlight washers*

Windshield washer

–

Horn

Alarm siren*

Brake system control module
(valves, parking brake)

Wipers

Rear window washer

Function

Ampere

Heated windshield*, right side

Parking heater*

Brake system control module
(ABS pump)

–

Heated windshield*, right side

Shunt

Fed when ignition is on:
Engine control module; trans-
mission components, electrical
power steering, central electri-
cal module

Exterior vehicle sound (certain
markets)

Right-side headlight

7.5

Right-side headlight, some
models with LED

–

Airbags

Function

Ampere

Left-side headlight

7.5

Left-side headlight, some
models with LED

Accelerator pedal sensor

Transmission control module;
gear selector control module

Engine control module

–

Engine control module; actua-
tor; throttle unit; turbo-charger
valve

Solenoids; valve; engine cool-
ing system thermostat

Vacuum regulators; valve

7.5

Spoiler shutter control module;
radiator shutter control mod-
ule

–

MAINTENANCE AND SERVICE

637

Function

Ampere

Heated oxygen sensor, front;
heated oxygen sensor, rear

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

–

Engine control module

Ignition coils; spark plugs

–

Transmission oil pump control
module

Vacuum pump control module

Transmission actuator

–

Not Excellence

Excellence

LED (Light Emitting Diode)

Related information

•

Fuses and fuseboxes (p. 632)

•

Replacing fuses (p. 633)

Volvo XC90 Twin Engine (2019 year). Manual - part 37