Volvo XC90 Twin Engine (2019 year). Manual — part 37
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
•
•
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
12
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)
•
•
•
Fuses in the engine compartment (p. 634)
•
Checking and filling engine oil (p. 624)
•
12
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.
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)
•
MAINTENANCE AND SERVICE
624
Checking and filling engine oil
The engine oil level is monitored by an electronic
oil level sensor.
Filler pipe
13
.
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.
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.
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.
13
Engines with an electronic oil level sensor do not have a dipstick.
MAINTENANCE AND SERVICE
}}
625
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 specifications (p. 672)
•
•
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.
•
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
14
bulbs must be replaced by a workshop.
An authorized Volvo workshop is recommended.
For information on lights not mentioned in
this article, contact a Volvo dealer or a certi-
fied Volvo service technician.
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.
Bulbs for active curve lighting* contain traces
of mercury and should therefore always be
submitted to a certified Volvo service techni-
cian.
14
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
15
.
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
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.
15
An authorized Volvo workshop is recommended.
||
MAINTENANCE AND SERVICE
628
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.
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.
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.
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.
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)
12
Cold start capacity
A
- CCA
B
(A)
850
Dimensions, L×W×H
353×175×190 mm (13.9×6.9×7.5 inches)
Capacity (Ah)
95
A
According to EN standard.
B
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.
The vehicle cannot be started if the hybrid
battery is discharged.
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.
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.
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
•
•
•
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.
A used start battery contains lead and must
be recycled in an environmentally responsible
manner.
Related information
•
•
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
•
•
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 in the cargo compartment (p. 641)
•
Fuses in the engine compartment (p. 634)
•
MAINTENANCE AND SERVICE
634
Fuses in the engine compartment
The fuses in the engine compartment help pro-
tect electrical components such as engine and
brake functions.
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
16
.
Function
Ampere
–
–
–
–
–
–
Control module for actuator
for engaging/changing gears,
automatic transmission
5
High-voltage coolant heater
control module
5
Function
Ampere
Control module for A/C; heat
exchanger cut-off valve; cut-
off valve for coolant through
the climate system
5
Hybrid battery control module;
high-voltage converter for
combined high-voltage gener-
ator/starter motor with 500
V–12 V voltage converter
5
–
–
Converter for controlling feed
to rear axle electric motor
10
Hybrid battery control module;
high-voltage converter for
combined high-voltage gener-
ator/starter motor with 500
V–12 V voltage converter
10
Charge module
5
Cut-off valve for hybrid battery
coolant; coolant pump 1 for
hybrid battery
10
Coolant pump for electric drive
system
10
Function
Ampere
Hybrid component cooling fan
25
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
12 V outlet in tunnel console,
front
15
12 V outlet in tunnel console
between second-row seats
A
12 V outlet in tunnel console,
between rear seats
B
; USB
ports in tunnel console
between rear seats
B
15
16
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
B
15
–
–
–
–
–
–
–
–
Heated windshield*, left side
Shunt
Heated windshield*, left side
40
Headlight washers*
25
Windshield washer
25
–
–
Horn
20
Alarm siren*
5
Brake system control module
(valves, parking brake)
40
Wipers
30
Rear window washer
25
Function
Ampere
Heated windshield*, right side
40
Parking heater*
20
Brake system control module
(ABS pump)
40
–
–
Heated windshield*, right side
Shunt
Fed when ignition is on:
Engine control module; trans-
mission components, electrical
power steering, central electri-
cal module
5
Exterior vehicle sound (certain
markets)
5
Right-side headlight
7.5
Right-side headlight, some
models with LED
C
15
–
–
–
–
–
–
Airbags
5
Function
Ampere
Left-side headlight
7.5
Left-side headlight, some
models with LED
C
15
Accelerator pedal sensor
5
Transmission control module;
gear selector control module
15
Engine control module
5
–
–
–
–
–
–
–
–
Engine control module; actua-
tor; throttle unit; turbo-charger
valve
20
Solenoids; valve; engine cool-
ing system thermostat
10
Vacuum regulators; valve
7.5
Spoiler shutter control module;
radiator shutter control mod-
ule
5
–
–
MAINTENANCE AND SERVICE
637
Function
Ampere
Heated oxygen sensor, front;
heated oxygen sensor, rear
15
Oil pump solenoid; A/C mag-
netic coupling; heated oxygen
sensor (center)
15
–
–
Engine control module
20
Ignition coils; spark plugs
15
–
–
–
–
Transmission oil pump control
module
30
Vacuum pump control module
40
Transmission actuator
25
–
–
–
–
–
–
A
Not Excellence
B
Excellence
C
LED (Light Emitting Diode)
Related information
•
•
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