cooling VOLVO XC90 TWIN ENGINE 2019 Owner's Manual

MAINTENANCE AND SERVICE
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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 14
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. 14
LED (Light Emitting Diode)

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.
CoolantThe 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 batteryType: 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
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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.
PositionsThere 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
5High-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 B15
16
An authorized Volvo workshop is recommended.

SPECIFICATIONS
673
Coolant specifications
Recommended grade: Volvo-approved pre-
mixed coolant. If concentrated coolant is used,
mix with 50% water. Consult a Volvo retailer if
you have any questions.
To avoid deterioration of the cooling system,
engine trouble, etc., only approved Volvo coolant
should be used.
WARNING Do not ingest. May cause damage to organs
(kidneys). The product contains ethylene gly-
col, inhibitor, emetic, water, etc.
Related information

Refilling coolant (p. 625) Transmission fluid specifications
Under normal driving conditions, the transmis-
sion fluid will not need to be changed during its
service life. However, it may need to be changed
if the vehicle is driven frequently in adverse driv-
ing conditions.
Automatic transmission Prescribed transmission fluid:
AW1
Related information
Type designations (p. 664) Brake fluid specifications
The medium in the hydraulic brake system is
called brake fluid and is used to transfer braking
force from e.g. pressure on the brake pedal via a
master brake cylinder to one or more slave cylin-
ders, which in turn act on a mechanical brake.
Recommended grade: Volvo Original or similar
fluid that meets a combination of Dot 4, 5.1 and
ISO 4925 class 6.NOTE Changing or filling brake fluid should be
entrusted to an authorized Volvo workshop.
Related information

Engine compartment overview (p. 622)

INDEX
680Cooling system
overheating 479
Corner Traction Control 279
Corrosion protection 656
Covering cargo compartment 602
Crash, see Collision 42
Crash event data 33
Cross Traffic Alert – CTA 360, 361, 362, 363
Cruise control 291, 292 manage speed 292, 293
temporary deactivation 294, 295
turn off 296
CTA – Cross Traffic Alert 360, 361, 362, 363
Curb weight 669
Customer Privacy Policy 35
CZIP (Clean Zone Interior Package) 208
D Data
recording
33
transferring between vehicle and work-
shop 612
Data sharing 548
Daytime running lights 154 Decals
location
664
Defrosting 222
Detection of cyclist 345
Dimensions 667
Dipstick, electronic 624
Direction of rotation 562
Display driver information 84
Display lighting 164
Distance Alert 296, 297, 298
limitations 299
DivX ®
523
Door mirrors 169, 171
compass 493
dimming 170
outer 169, 171
power folding 171
resetting 171
store position 186, 187
Driveline transmission 448
Drive mode 454
changing 459
Driver Alert Control 370
operation 371, 372
Driver Alert Control limitations 372 Driver performance
92, 93
Driver profile 136
edit 137, 138, 139
select 137
Driver support system 278
Drive systems 453
Driving cooling system 479
with a trailer 483
Driving economy 467
Driving through standing water 473
driving with a trailer towball load 670
towing capacity 670
E Economical driving
467
Electrical outlet
594
use 596
Electrical system 627
Electric drive motor specifications 671
electric motor 453 Driving 469
Range 469