Volvo XC90 Twin Engine (2020 year). Manual in english — page 37
MAINTENANCE AND SERVICE
* Option/accessory.
637
Servicing the climate control
system
The air conditioning system must only be
serviced and repaired by an authorised work-
shop.
Troubleshooting and repair
The air conditioning system contains fluores-
cent tracing agents. Ultraviolet light must be
used during leak detection.
Volvo recommends that an authorised Volvo
workshop is contacted.
Cars with R134a refrigerant
WARNING
The air conditioning system contains pres-
surised refrigerant R134a. This system
must only be serviced and repaired by an
authorised workshop.
Cars with R1234yf refrigerant
WARNING
The air conditioning system contains pres-
surised refrigerant R1234yf. In accordance
with SAE J2845 (Technician Training for
Safe Service and Containment of Refriger-
ants Used in Mobile A/C System), service
and repair of the refrigerant system must
only be performed by trained and certified
technicians in order to ensure the safety of
the system.
Related information
•
Volvo service programme (p. 630)
Head up display when replacing
the windscreen
*
Cars with head-up display are equipped with
a special type of windscreen that meets the
requirements for displaying the projected
image.
Volvo recommends that you contact an
authorised Volvo workshop when replacing
the windscreen. The correct version of the
windscreen must be fitted in order that the
head-up display's graphics shall be displayed
correctly.
Related information
•
•
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MAINTENANCE AND SERVICE
638
Opening and closing the bonnet
The bonnet can be opened using the handle
in the passenger compartment and a handle
under the bonnet.
Open the bonnet
Pull the handle near the foot pedals to
release the bonnet from its fully closed
position.
Turn the handle under the bonnet anti-
clockwise to release the bonnet from the
lock catches and lift the bonnet.
Warning - bonnet not closed
When the bonnet is released, a
warning symbol and graphics in the
driver display will light up and an
acoustic reminder will sound. If the
car starts rolling, an acoustic warning signal
will repeat.
If the warning symbol is lit or the warning
signal is heard despite the bonnet being
closed properly, contact an authorised
Volvo workshop.
Close the bonnet
1. Push the bonnet down until it starts to fall
from its own weight.
2. When the bonnet stops against the lock
catch, push the bonnet to close it com-
pletely.
WARNING
Risk of crushing! Ensure that the closing
path under the bonnet is not obstructed,
otherwise there is a risk of personal injury.
WARNING
Check that the bonnet locks properly when
closed. The bonnet must engage at both
sides audibly.
Bonnet not completely closed.
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MAINTENANCE AND SERVICE
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639
Bonnet completely closed.
WARNING
Never drive with an open
bonnet!
If this symbol is visible –
or something else indi-
cates that the bonnet is
not fully closed while driv-
ing – stop immediately
and close it properly.
Related information
•
Engine compartment overview (p. 639)
•
Door and seatbelt reminder (p. 50)
Engine compartment overview
The overview shows some service-related
components.
Some of the components included in the car's
electric drive system are located under the
bonnet. Exercise caution in this area and only
touch anything that is related to normal main-
tenance.
WARNING
Orange-coloured cables must only be han-
dled by qualified personnel.
WARNING
Several components in the car work with
high-voltage current that could be danger-
ous in the event of incorrect intervention.
•
Do not touch anything that is not
clearly described in the owner's man-
ual.
•
Exercise caution when checking/refill-
ing fluids in the engine compartment.
The appearance of the engine compartment may dif-
fer depending on model and engine variant.
Coolant expansion tank
Reservoir for brake fluid (located on the
driver's side)
Washer fluid filler pipe
12
Central electrical unit
Air filter
Engine oil filler pipe
12
Fill the washer fluid at regular intervals, e.g. when refuelling.
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MAINTENANCE AND SERVICE
640
WARNING
Remember that the radiator fan (located at
the front of the engine compartment,
behind the radiator) may start or continue
to operate automatically for up to approx.
6 minutes after the engine has been
switched off.
Always have the engine cleaned by a work-
shop - an authorised Volvo workshop is
recommended. There is a risk of fire if the
engine is hot.
WARNING
The ignition system works at a very high
and hazardous voltage. The car's electrical
system must always be in ignition position
0
when work is being performed in the
engine compartment.
Do not touch the spark plugs or ignition
coil when the car's electrical system is in
ignition position
II
or when the engine is
hot.
Related information
•
Opening and closing the bonnet (p. 638)
•
•
•
Fuses in engine compartment (p. 653)
•
Checking and filling with engine oil
(p. 641)
•
Engine oil
An approved engine oil must be used in order
that the recommended service intervals and
warranty can be applied.
Volvo recommends:
If the engine oil cannot be checked on a regu-
lar basis and the level falls too low, there is a
risk that this will cause serious damage to the
engine.
In order to fulfil the requirements for the
engine's service intervals all engines are
filled with a specially adapted synthetic
engine oil at the factory. The choice of oil
has been made very carefully with regard
to service life, starting characteristics, fuel
consumption and environmental impact.
An approved engine oil must be used in
order that the recommended service inter-
vals can be applied. Only use a prescribed
grade of oil for both filling and oil change,
otherwise there is a risk of the service life,
starting characteristics, fuel consumption
and environmental impact of the car being
affected.
If engine oil of the prescribed grade and
viscosity is not used, engine related com-
ponents may become damaged. Volvo Car
Corporation disclaims any liability for any
such damage.
Volvo recommends that oil changes are
carried out at an authorised Volvo work-
shop.
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MAINTENANCE AND SERVICE
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641
Volvo uses different systems to warn about
the oil level if it is too low/high, or in the event
of low oil pressure. Certain engine variants
have an oil pressure sensor, and then the
driver display's warning symbol for low oil
pressure
is used. Other variants have an
oil level sensor, when the driver is informed via
the driver display's warning symbol
and
display texts. Certain variants have both sys-
tems. Contact a Volvo dealer for more infor-
mation.
Change the engine oil and oil filter in accord-
ance with the intervals specified in the Service
and Warranty Booklet. Using oil of a higher
than specified grade is permitted. If the car is
driven in adverse conditions, Volvo recom-
mends using an oil of a higher grade than the
one specified.
Related information
•
Checking and filling with engine oil
(p. 641)
•
Engine oil — specifications (p. 699)
•
Adverse driving conditions for engine oil
(p. 700)
Checking and filling with engine oil
The oil level is detected with the electronic oil
level sensor.
Filler pipe.
13
,
14
In some cases, oil may need to be topped up
between service intervals.
No action with regard to engine oil level needs
to be taken until a message is shown in the
driver display.
WARNING
If this symbol is shown together
with the message
Engine oil
level
Service required
, visit a
workshop - an authorised Volvo
workshop is recommended. The oil level
may be too high.
If this symbol is shown together
with a message about low oil
level, such as
Engine oil level
low
Refill 1 litre
for example,
then only fill the volume specified, e.g.
1 litre (1 quart).
WARNING
Do not spill oil onto the hot exhaust mani-
fold due to the risk of fire.
See oil level in the centre display
The oil level is visualised using the electronic
oil level gauge in the centre display when the
car has been started. The oil level should be
checked regularly.
13
Engines with electronic oil level sensor do not have a dipstick.
14
The appearance of the engine compartment may differ depending on model and engine variant.
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MAINTENANCE AND SERVICE
642
1. Open the
Car Status
app from the app
view in the centre display.
2. Press
Status
to show the oil level.
Graphics for oil level in the centre display.
The system cannot directly detect changes
when the oil is filled or drained. The car
must have been driven approx. 30 km
(approx. 20 miles) and have been station-
ary for 5 minutes with the engine switched
off and on level ground before the oil level
indication is correct.
If the right conditions for measuring the oil
level (time after engine shutdown, the car's
inclination, outside temperature, etc.) are
not met, then the message
No value
available
will be shown in the centre dis-
play. This does
not
mean that there is
something wrong in the car's systems.
Related information
•
•
Adverse driving conditions for engine oil
(p. 700)
•
Engine oil — specifications (p. 699)
•
•
Topping up coolant
The coolant cools the internal combustion
engine to the correct operating temperature.
The heat that is transferred from the engine
to the coolant can be used to heat the pas-
senger compartment.
When topping up the coolant, follow the
instructions on the packaging. Never top up
with water only. The risk of freezing increases
with both too little and too much coolant con-
centrate.
If there is coolant under the car, if there is
coolant smoke, or if more than 2 litres (approx.
2 quarts) have been filled, always call for
recovery to avoid the risk of engine damage
due to a defective cooling system when
attempting to start the car.
WARNING
The coolant may be very hot. Never open
the cap when the coolant is hot. If a top-up
is required, unscrew the expansion tank
cap slowly to allow any overpressure to
disappear.
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MAINTENANCE AND SERVICE
643
Coolant expansion tank.
Lift off the rubber strip by pressing it
inward in the engine compartment.
Detach the flap in the plastic cover by
folding out the release catch and turning
the flap upward.
Screw off the cap and top up with coolant
if necessary. The coolant level must lie
between the
MIN
and
MAX
marks on the
expansion tank.
•
Harmful if ingested. May cause organ
(kidney) damage.
•
Use ready-mixed coolant as recom-
mended by Volvo. If concentrated liq-
uid is used, make sure that the ratio is
50 % coolant to 50 % water of an
approved quality.
•
Do not mix different coolants.
•
Only new coolant should be used
when replacing major cooling system
components to ensure the system has
sufficient corrosion protection.
•
The engine must only be run with a
well-filled cooling system. Otherwise,
temperatures that are too high may
occur resulting in the risk of damage
(cracks) in the cylinder head.
•
A high content of chlorine, chlorides
and other salts may cause corrosion in
the cooling system.
Related information
•
Engine compartment overview (p. 639)
•
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MAINTENANCE AND SERVICE
644
Bulb replacement
This car is equipped only with LED
16
lamps
and therefore no replaceable bulbs. Contact a
workshop
15
if a fault occurs in the lighting.
If a fault occurs in LED
16
lamps, the entire
lamp unit usually must be replaced.
Outside lighting such as headlamps and
rear lamps may temporarily have conden-
sation on the inside of the lens. This is nor-
mal, all exterior lighting is designed to
withstand this. Condensation is normally
vented out of the lamp housing when the
lamp has been switched on for a time.
16
LED (Light Emitting Diode)
15
An authorised Volvo workshop is recommended.
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MAINTENANCE AND SERVICE
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645
Starter battery
The electrical system is single-pole and uses
the chassis and engine casing as a conduc-
tor.
The starter battery is used to start up the
electrical system and drive electrical equip-
ment in the car. The hybrid battery is used
when the internal combustion engine is
started.
The starter battery should be replaced by a
workshop
17
.
The starter battery is a 12 V AGM battery
(Absorbed Glass Mat), designed for regenera-
tive charging, and to support the functionality
of the car's different systems.
The service life and function of the starter bat-
tery is influenced by factors such as the num-
ber of starts, discharging, driving style, driving
conditions, climatic conditions etc.
•
Never disconnect the starter battery when
the engine is running.
•
Check that the cables to the starter bat-
tery are correctly connected and properly
tightened.
WARNING
•
The battery can generate oxyhydrogen
gas, which is highly explosive. A spark
can be formed if a jump lead is con-
nected incorrectly, and this can be
enough for the battery to explode.
•
Do not connect the jump leads to any
fuel system component or any moving
part. Be careful of hot engine parts.
•
The battery contains sulphuric acid,
which can cause serious burns.
•
If sulphuric acid comes into contact
with eyes, skin or clothing, flush with
large quantities of water. If acid
splashes into the eyes - seek medical
attention immediately.
•
Never smoke near the battery.
Charging points
When connecting an external starter battery or
battery charger, use the car's charging points
in the engine compartment.
The battery terminals on the car's starter bat-
tery in the luggage/cargo area must
not
be
used.
Positive charging point
Negative charging point
It is not possible to charge another car's
battery by supplying current through the
charging points. Using the charging points
to charge another car's battery may cause
a fuse to blow, which means that the
charging points will stop working.
17
An authorised Volvo workshop is recommended.
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MAINTENANCE AND SERVICE
646
When charging the starter battery, only use
a modern battery charger with controlled
charging voltage. Fast charging function
must not be used since it may damage the
battery.
If both the starter battery and the hybrid
battery are discharged then
both
batteries
must be charged. In such a case, charging
only the hybrid battery first is not possible.
In order for the hybrid battery to be
charged the starter battery must have a
certain state of charge.
If the following instruction is not observed
then the energy saving function for info-
tainment may be temporarily disengaged,
and/or the message in the driver display
about the starter battery's state of charge
may be temporarily inapplicable, following
the connection of an external starter bat-
tery or battery charger:
•
The negative battery terminal on the
car's starter battery must
never
be
used for connecting an external starter
battery or battery charger - only the
car's negative charging point
may be
used as the grounding point.
The life of the battery is shortened if it
becomes discharged repeatedly.
The life of the battery is affected by several
factors, including driving conditions and
climate. Battery starting capacity decrea-
ses gradually with time and therefore
needs to be recharged if the car is not used
for a longer time or when it is only driven
short distances. Extreme cold further limits
starting capacity.
To maintain the battery in good condition,
at least 15 minutes of driving/week is rec-
ommended or that the battery is con-
nected to a battery charger with automatic
trickle charging.
A battery that is kept fully charged has a
maximum service life.
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MAINTENANCE AND SERVICE
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647
Location
The starter battery is located in the cargo area.
WARNING
If the starter battery is disconnected, the
automatic opening and closing function
must be reset to work properly. A reset
must take place for pinch protection to
work.
On certain models, the battery is attached
with a retaining strap. Make sure the
retaining strap is properly tightened.
Specifications for starter battery
Battery type
H8 AGM
Voltage (V)
12
Cold start capacity
A
- CCA
B
(A)
850
Size, L×B×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 entrusting battery replace-
ment to an authorised Volvo workshop.
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MAINTENANCE AND SERVICE
648
If the battery is replaced, make sure you
replace it with a battery with the same
size, cold starting capacity and type as the
original battery (see the decal on the bat-
tery).
Related information
•
Symbols on the batteries (p. 650)
•
•
Using jump starting with another battery
(p. 504)
•
Reset sequence for pinch protection
(p. 175)
•
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MAINTENANCE AND SERVICE
649
Hybrid battery
The car is equipped with a hybrid battery for
electric motor operation - a maintenance-free
rechargeable Lithium-ion type battery.
The car cannot be started if the hybrid bat-
tery is discharged.
If both the starter battery and the hybrid
battery are discharged then
both
batteries
must be charged. In such a case, charging
only the hybrid battery first is not possible.
In order for the hybrid battery to be
charged the starter battery must have a
certain state of charge.
WARNING
The hybrid battery must only be replaced
by a workshop - an authorised Volvo work-
shop is recommended.
Coolant
The hybrid battery's cooling system has a sep-
arate expansion tank.
The hybrid battery's coolant must only be
topped up by a workshop - an authorised
Volvo workshop is recommended.
Specifications for hybrid battery
Type:
Lithium-ion
Total amount of energy:
11.6 kWh.
The capacity of the hybrid battery dimin-
ishes with age and use, which may result
in increased use of the internal combustion
engine and, as a consequence, reduced
fuel economy and reduced range during
electric operation.
Related information
•
Symbols on the batteries (p. 650)
•
•
Charging the hybrid battery (p. 435)
•
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MAINTENANCE AND SERVICE
650
Symbols on the batteries
There are information and warning symbols
on the batteries.
Use protective goggles.
Further information in the
owner's manual for the
car.
Store the battery out of
the reach of children.
The battery contains cor-
rosive acid.
Avoid sparks and naked
flames.
Risk of explosion.
Must be taken for recy-
cling.
Related information
•
•
•
Battery recycle
A used starter battery should be recycled in
an environmentally sound manner – it con-
tains lead.
Consult a workshop in the event of uncertainty
about how this type of waste should be dis-
carded - an authorised Volvo workshop is rec-
ommended.
Related information
•
•
•
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MAINTENANCE AND SERVICE
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651
Fuses and central electrical units
All electrical functions and components are
protected by a number of fuses in order to
protect the car's electrical system from dam-
age by short circuiting or overloading.
WARNING
Never use a foreign object or a fuse with an
amperage higher than that specified when
replacing a fuse. This could cause signifi-
cant damage to the electrical system and
possibly lead to fire.
WARNING
Orange-coloured cables must only be han-
dled by qualified personnel.
WARNING
Several components in the car work with
high-voltage current that could be danger-
ous in the event of incorrect intervention.
Do not touch anything that is not clearly
described in the owner's manual for the
car.
If an electrical component or function does not
work, it may be because the component's fuse
was temporarily overloaded and failed. If the
same fuse fails repeatedly then there is a fault
in the circuit. Volvo recommends contacting
an authorised Volvo workshop for checking.
Location of central electrical units
The figure is schematic - appearance may vary
depending on car model.
Central electrical unit locations in a left-hand
drive car. In a right-hand drive car the central
electrical units under the glovebox change
sides.
Engine compartment
Under the glovebox
Cargo area
Related information
•
•
•
Fuses in engine compartment (p. 653)
•
Replacing a fuse
All electrical functions and components are
protected by a number of fuses in order to
protect the car's electrical system from dam-
age by short circuiting or overloading.
1. Look in the fuse diagram to locate the
fuse.
2. Pull out the fuse and check from the side
to see whether the curved wire has blown.
3. If this is the case, replace it with a new
fuse of the same colour and amperage.
WARNING
Never use a foreign object or a fuse with an
amperage higher than that specified when
replacing a fuse. This could cause signifi-
cant damage to the electrical system and
possibly lead to fire.
WARNING
Contact an authorised Volvo workshop
about the fuses not mentioned in the
owner's manual. If replacing the fuse is not
performed correctly, it can cause serious
damage to the electrical systems.
Related information
•
Fuses and central electrical units (p. 651)
•
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