2018 VOLVO XC90 TWIN ENGINE engine coolant

MAINTENANCE AND SERVICE
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* Option/accessory. 613Lift 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 •
Mix the coolant with water of acceptable
quality. If you are unsure of the quality of
the water, use a Volvo-recommended
premixed coolant.
• Make sure the coolant mixture is 50%
water and 50% coolant.
• Only use coolants with corrosion protec-
tion recommended by Volvo.
• 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. 609)
• Coolant specifications (p. 663) Replacing bulbs
Halogen headlights are not available on all mod-
els and markets. Contact a Volvo retailer for
more information.
LED 13
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. 13
LED (Ligth Emitting Diode)

MAINTENANCE AND SERVICE
619
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.
SpecificationsType: 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. 620)
• Start battery (p. 615)
• Charging the hybrid battery (p. 407)

||MAINTENANCE AND SERVICE
* Option/accessory.
628 Function
AA Door module in right-side rear door 20
Fuses in the trunk/cargo compart-
ment
10Control module for Internet-con-
nected vehicle; Control module for
Volvo On Call
5Door module in left-side rear door 20
Audio control module (amplifier)
(certain models only)
40Climate system blower module
(rear)*
40Multi-band antenna module 5
Front seat massage function*
5–
–Rear window wiper
15Fuel pump control module
15Relay windings for distribution box
in engine compartment; Relay
windings for transmission oil pump
5–
– Function
AA Driver's seat heating
15 Front passenger's seat heating 15
Coolant pump
10 –
– Door module in left-side front door 20
Active chassis control module*
20 –
– Sensus control module
10 –
– –
– Door module in right-side front
door
20 Display for rear seat convenience
functions
C
; On-board diagnostics
(OBD II) in tunnel console between
rear seats C
; Extra movement sen-
sor C 5
C Function
AA TV* (certain markets only)
5 Primary fuse for fuses 53 and 58 15
A
Ampere
B Not Excellence
C Excellence
Related information
• Fuses and fuseboxes (p. 620)
• Replacing fuses (p. 621)

SPECIFICATIONS
661
Engine specifications
Engine specifications (output, etc.) for each
engine variant are shown in the table below. The
specifications for Special Edition vehicles may
vary. Twin Engine vehicles are powered by both a
gasoline engine and an electric motor (ERAD –
Electric Rear Axle Drive).
NOTE Not all engines are available on all markets.
Engine
Engine codeA
Output
(kW/rps) Output
(hp/rpm) Torque
(Nm/rps) Torque
(ft. lbs./rpm) Number of cylinders
T8 Twin Engine

B4204T28 233/100 313/6000 400/37–90 295/2200–5400 4A
The engine code, component and manufacturer serial numbers can be found \
on the engine.
Electric motorMax. output: 65 kW (87 hp).
Torque: 240 Nm.
Related information
• Type designations (p. 654)
• Engine oil specifications (p. 662)
• Coolant specifications (p. 663)

SPECIFICATIONS
663
Coolant specifications
Recommended grade: Volvo-recommended
coolant diluted with 50% water. See package.
Consult a Volvo retailer if you have any ques-
tions.
Do not mix different types of antifreeze as this
could pose a health risk.
Related information
• Refilling coolant (p. 612) 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 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 Dot 4
class 6 or equivalent.
NOTE
Changing or filling brake fluid should be
entrusted to an authorized Volvo workshop.
Related information
•
Engine compartment overview (p. 609)

INDEX
669
Charge level
vehicle function 459
Charging hybrid battery 407
opening and closing the charging
door 411
start charging 412
Status 414, 415, 416
stop charging 418
Charging cable 409
Charging current 408
Checking engine oil level 611
Child restraints 63, 65 booster cushions 71
convertible seats 69
infant seats 67
integrated booster cushion 76
ISOFIX/LATCH anchors 74
lower attachment points 74
recalls and registration 65
top tether anchors 72
Child safety 63
Child safety locks 259
Circuit breaker 410
City Safety 335, 336, 338, 339, 344, 346
City Safety in crossing traffic 341, 342 City Safety when evasive maneuver preven-
ted
343
Cleaning

635, 637, 638
automatic car wash 641
car wash 638, 639, 641, 642, 643, 644
center display 633
Seat belts 635
textile upholstery 633, 635, 636
upholstery 633, 635, 636, 637, 638
wheels 644
Cleaning wheels 644
Cleaning wiper blades 642
Clean Zone 205
Clean Zone Interior Package 206
Climate 202
auto-regulation 219
blower control 224, 225
parking 230
perceived temperature 203
Sensors 202
temperature control 226, 227, 228
voice control 203
zones 202
Climate controls 213
center display 213
rear seat 213 Climate system
202, 213
Refrigerant 664
repairs 608
Clock, setting 93
Collision 42, 47, 52, 61
Collision warner detection of pedestrians 339
radar sensor 326
Collision warning 335, 347
Color code, paintwork 646
Color codes 646
Compass 481, 482 calibration 482
Condensation in headlights 639, 641, 642, 643
Connecting vehicle to Internet No connection or poor connection 534
via a mobile device (WiFi) 531
via mobile device (Bluetooth) 531
via vehicle's modem 532
Connect phone 521
Contact information 26
Convertible seats 69
coolant 663
Coolant, filling 612

INDEX
671
Electronic immobilizer 252
emergency brake lights 160
Emission inspection readiness 598
Engine
automatic start and stop of combustion
engine 444
overheating 468
start 424
turn off 426
Engine braking, automatic 454
Engine compartment coolant 612
engine oil 610
overview 609
Engine drag control 274
Engine oil 610 filling 611
filter 610
grade and volume 662
Engine shutdown 426
Engine specifications 661
Engine temperature high 468
Environment 27
Error messages Adaptive Cruise Control 309
see Messages and symbols 309, 324 Error messages in BLIS
352
Ethanol content max. 10% by volume

464
Exterior dimensions 657
F Federal Clean Air Act
598
Ferry transport
450
Flat tire 572
Flooded road 462
Fluids, volumes 650, 664
Fluids and oils 663, 664
Fog lights rear 159
Four-C 450
Front seat blower 224
climate 213
heating 215, 216
temperature 226
ventilation 217
Front seat manual 184
Front seats, power 185 adjusting passenger seat from driver's
seat 191 adjusting seat
185
Lumbar support
190
massage 188, 189
memory function 186, 187
multifunction control 188, 189, 190
Side bolsters 190
FSC, environmental labeling 23
Fuel 464 Travel Link service 505
Fuel filling 463
Fuel gauge 86
Fuel requirements 464, 465
Fuel tank volume 664
Fuse box 621
Fuses below the glove compartment 626
general 620
in engine compartment 622
in the cargo compartment 629
replacing 621
G Gasoline grade
464
Gauge fuel gauge

86