2018 VOLVO XC90 TWIN ENGINE coolant temperature

CLIMATE CONTROL
* Option/accessory.
230 Parking climate
The passenger compartment climate can be pre-
conditioned or maintained when the vehicle is
parked. For full functionality, the vehicle's charg-
ing cable must be plugged in. Preconditioning and the climate comfort retaining func-
tion are controlled from the Parking climate tab in the
center display's Climate view.
Related information
•
Climate (p. 202)
• Preconditioning (p. 230)
• Climate comfort retaining function (p. 234)
• Parking climate symbols and messages
(p. 236) Preconditioning
Preconditioning the vehicle before driving can
help reduce wear and reduce energy consump-
tion during a trip.
Preconditioning can be started immediately or
started at a preset time using a timer.
The function utilizes several of the vehicle's sys-
tems:
• In cold weather, the high-voltage coolant
heater (HVCH) heats the passenger com-
partment to a comfortable temperature.
• In warm weather, air conditioning cools the
passenger compartment to a comfortable
temperature.
• The electrically heated steering wheel* and
seats* can be activated.
• Heating for the windshield, rear window and
door mirrors are automatically activated as
needed.
During preconditioning in a hot climate, conden-
sation from the air conditions may drip under the
vehicle. This is normal.

STARTING AND DRIVING
* Option/accessory.
468 Overheating of engine and
transmission
In demanding driving conditions, such as driving
in mountainous areas or hot weather, there is a
risk of the engine or transmission overheating,
especially when carrying heavy loads.
• Engine power may be temporarily limited.
• Remove any auxiliary lights mounted in front
of the grille when driving in hot weather.
• If the temperature in the engine's cooling
system becomes too high, a warning symbol
will appear in the instrument panel along with
the message Engine temperature High
temperature Stop safely. Pull over to a safe location and let the engine idle for a few
minutes to cool down.
• If the message
Engine temperature High
temperature Turn off engine or Engine
coolant Level low, turn off engine is dis- played, stop the vehicle and turn off the
engine.
• If the transmission begins to overheat, an
alternative gear shifting program will be
selected. An integrated protective function
will also be activated, the warning symbol will
illuminate and the message Transmission
warm
Reduce speed to lower
temperature or Transmission hot Stop
safely, wait for cooling will be displayed in the instrument panel. Follow the recommen-
dations given by reducing speed or stopping the vehicle safely and letting the engine idle
for a few minutes to let the transmission
cool.
• If the vehicle begins to overheat, the air con-
ditioning may be temporarily switched off.
• After a prolonged period of driving in
demanding conditions, do not turn off the
engine immediately after stopping.
NOTE It is normal for the engine's cooling fan to
operate for a short time after the engine is
switched off.
Symbols in the instrument panel
Symbol
Meaning High engine temperature. Follow
the recommendations provided.
Low coolant level. Follow the rec-
ommendations provided.
Transmission hot/overheated/cool-
ing. Follow the recommendations
provided.
Related information
•
Refilling coolant (p. 612)
• Driving with a trailer (p. 472)
• Preparing for a long trip (p. 460)
• Gear indicator* (p. 442)

||MAINTENANCE AND SERVICE
612
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. 610)
• Engine oil specifications (p. 662)
• Ignition modes (p. 427)
• Vehicle status (p. 602) 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. 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)

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