2020 VOLVO XC90 TWIN ENGINE overheating

STARTING AND DRIVING
457
WARNING
Never carry a cell phone that is switched
on while refueling your vehicle. If the
phone rings, this may cause a spark that could ignite gasoline fumes, resulting in fireand injury.
WARNING
Carbon monoxide is a poisonous, colorless, and odorless gas. It is present in all exhaustgases. If you ever smell exhaust fumesinside the vehicle, make sure the passengercompartment is ventilated, and immedi-ately return the vehicle to a trained andqualified Volvo service technician for cor-rection.
Demanding drivingIn demanding driving conditions, such as when towing a trailer or driving in hot weatheror for prolonged periods at high altitudes, itmay be a good idea to switch to a higher- octane fuel (AKI 14
91 or higher) or to switch to
another brand of gasoline in order to fully uti- lize the vehicle's engine capacity and optimizetraction.
Related information
Fuel (p. 454)
Emission controls (p. 457)
Emission controls
Three-way catalytic converter
Keep your engine properly tuned. Certain engine malfunctions, particularly involvingthe electrical, fuel or distributor ignitionsystems, may cause unusually high three-way catalytic converter temperatures. Donot continue to operate your vehicle if youdetect engine misfire, noticeable loss ofpower or other unusual operating condi-tions, such as engine overheating or back-firing. A properly tuned engine will helpavoid malfunctions that could damage thethree-way catalytic converter.
Do not park your vehicle over combustiblematerials, such as grass or leaves, whichcan come into contact with the hotexhaust system and cause such materialsto ignite under certain wind and weatherconditions.
Excessive starter cranking (in excess ofone minute), or an intermittently firing orflooded engine can cause three-way cata-lytic converter or exhaust system over-heating.
Remember that tampering or unauthor-ized modifications to the engine, theEngine Control Module, or the vehicle maybe illegal and can cause three-way cata-lytic converter or exhaust system over- heating. This includes: altering fuel injec-tion settings or components, alteringemission system components or locationor removing components, and/or repeateduse of leaded fuel.
NOTE
Unleaded fuel is required for vehicles with three-way catalytic converters.
Heated oxygen sensorsThe heated oxygen sensors monitor the oxy- gen content of the exhaust gases. Readingsare fed into a control module that continuouslymonitors engine functions and controls fuelinjection. The ratio of fuel to air into the engineis continuously adjusted for efficient combus-tion to help reduce harmful emissions.
Related information

Octane rating (p. 455)
Fuel (p. 454)
14
AKI (Anti Knock Index) is an average value of RON (Research Octane Number) and MON (Motor Octane Number) - (RON)+(MON)/2

STARTING AND DRIVING
458
Overheating of engine and transmission
In certain driving conditions, such as driving in mountainous areas or hot weather, there isa risk of the engine or transmission overheat-ing, especially when carrying heavy loads.
Engine power may be temporarily limited.
Remove any auxiliary lights mounted in front of the grille when driving in hotweather.
If the temperature in the engine's coolingsystem becomes too high, a warning sym-bol 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 orEngine coolant Level low, turn off
engine is displayed, stop the vehicle and
turn off the engine.
If the transmission begins to overheat, an alternative gear shifting program will beselected. An integrated protective functionwill also be activated, the warning symbolwill illuminate and the message
Transmission warm Reduce speed to
lower temperature or Transmission hot
Stop safely, wait for cooling will be dis- played in the instrument panel. Follow the recommendations given by reducingspeed or stopping the vehicle safely andletting the engine idle for a few minutes tolet the transmission cool.
If the vehicle begins to overheat, the airconditioning may be temporarily switchedoff.
After a prolonged period of driving indemanding conditions, do not turn off theengine immediately after stopping.
NOTE
It is normal for the engine's cooling fan to operate for a short time after the engine isswitched off.
Symbols in the instrument panel
Symbol Meaning
High engine temperature. Follow the recommendations provided.
Low coolant level. Follow the recommendations provided.
Transmission hot/overheated/ cooling. Follow the recommen-dations provided.
Related information
Refilling coolant (p. 610)
Driving with a trailer (p. 465)
Preparing for a long trip (p. 450)

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STARTING AND DRIVING
* Option/accessory.
466
NOTE
Extreme weather conditions, towing a trailer, high altitude and lower fuel gradethan recommended are factors that cansignificantly increase the vehicle's fuel con-sumption.
Trailer weights
WARNING
Please adhere to the recommendations provided for trailer weight. If the recom-mendations are not followed, the vehicleand trailer may be difficult to control duringevasive maneuvers and braking.
NOTE
The specified maximum trailer weights are those permitted by Volvo. National vehicleregulations may set additional restrictionson trailer weight and speed. The trailerhitches may be certified for higher towingweights than the vehicle is permitted totow.
Self-leveling suspension *The vehicle's self-leveling system attempts to keep the vehicle at a constant level, regardlessof load (up to the maximum permitted weight).When the vehicle is stationary, the rear end of the vehicle will be slightly lowered, which isnormal.
Driving in hilly terrain or hot weatherIn certain conditions, there is a risk of over-heating when driving with a trailer. If overheat-ing of the engine and drive system is detected,a warning symbol will illuminate in the instru-ment panel and a message will appear. The automatic transmission selects the opti- mal gear for the current load and enginespeed.
Steep inclines
Do not lock the automatic transmission into a higher gear than what the engine can handle
‒
it is not always preferable to drive in highgears at low rpm.
Parking on a hill
1. Depress the brake pedal.
2. Apply the parking brake.
3. Put the gear selector in P.
4. Release the brake pedal.Put chocks behind the wheels when the vehi- cle is parked on a hill with a trailer attached.
Starting on a hill
1. Depress the brake pedal.
2. Put the gear selector in D.
3. Release the parking brake.
4. Release the brake pedal and start driving.
Related information
Trailer Stability Assist
* (p. 467)
Checking trailer lights (p. 468)
Towing capacity and tongue weight (p. 667)
Overheating of engine and transmission(p. 458)
Retractable hitch
* (p. 461)

WHEELS AND TIRES
}}
571
2. Peel off the speed limit sticker from the
side of the compressor. Affix the decal to a clearly visible location on the windshieldto remind the driver not to exceed thisspeed limit. Do not drive faster than80 km/h (50 mph) while using a tire thathas been temporarily repaired with the tiresealing system.
3. Make sure the switch is in the 0 (Off)
position and take out the electric cableand the hose.
4. Unscrew the orange cover on the com- pressor and unscrew the cap on the seal-ing compound bottle.
5. Screw the bottle onto the bottle holder as far as possible. The bottle and the bottle holder are equip- ped with catches to help prevent the seal-ing compound from leaking. Once the bot-tle is screwed into place into the bottleholder, it cannot be unscrewed. The bottle can only be removed by a workshop 18
.
WARNING
Do not unscrew the bottle. It is equipped with a catch to prevent leakage. 6. Unscrew the tire's valve cap and screw
the hose's valve connector as far as possi- ble onto the valve. Be sure the air release valve on the com- pressor's hose is completely closed.
7. Connect the electrical cable to the nearest 12 V outlet and start the vehicle.
NOTE
Make sure that none of the vehicle's other 12 V sockets are used while the compres-sor is running.
WARNING
Never leave children unattended in the vehicle while the engine is running.
WARNING
Inhaling exhaust fumes could lead to seri- ous injury. Never leave the engine runningin an enclosed space or a space withoutsufficient ventilation. 8. Start the compressor by moving the
switch to the I (On) position.
WARNING
Never stand next to a tire being inflated with the compressor. If cracks, bulges, etc.form on the tire, switch off the compressorimmediately. The vehicle should not bedriven. Call roadside assistance to have thevehicle towed to a workshop for inspec-tion/replacement of the tire. Volvo recom-mends an authorized workshop.
NOTE
When the compressor first starts, air pres- sure may temporarily increase up to 6 bar(88 psi) but should decrease again afterapproximately 30 seconds.
9. Inflate the tire for 7 minutes.
CAUTION
To help avoid overheating, the compressor should never be used for more than10 minutes at a time.
18
An authorized Volvo workshop is recommended.

WHEELS AND TIRES
}}
573
WARNING
After using the tire sealing system, the vehicle should not be driven farther thanapproximately 200 km (120 miles).
NOTE
The compressor is an electric device. Fol- low local regulations for disposal.
Related information
Recommended tire pressure (p. 555)
Tire sealing system (p. 568)
Inflate tires with the compressor included in the tire sealing system (p. 573)
Inflate tires with the compressor included in the tire sealing system
The vehicle's original tires can be inflated using the compressor in the tire sealing sys-tem.
1. The compressor must be switched off. Make sure that the switch is in the 0 (Off)
position and take out the electrical cable and the hose.
2. Unscrew the tire's valve cap and screw the hose's valve connector as far as possi-ble onto the valve. Be sure the air release valve on the com- pressor's hose is completely closed.
3. Connect the electrical cable to the nearest 12 V outlet and start the vehicle.
WARNING
Inhaling exhaust fumes could lead to seri- ous injury. Never leave the engine runningin an enclosed space or a space withoutsufficient ventilation.
WARNING
Never leave children unattended in the vehicle while the engine is running. 4. Start the compressor by moving the
switch to the I (On) position.
CAUTION
Risk of overheating. The compressor should not be running for longer than 10minutes at a time.
5. Inflate the tire to the pressure specified on
the tire pressure decal on the driver's side door pillar. If the inflation pressure is toohigh, use the air release valve to releaseair.
6. Switch off the compressor. Remove the hose and the electrical cable.
7. Screw the valve cap back onto the tire.
NOTE
After inflating a tire, always replace the valve cap to help prevent valve damagecaused by gravel, dirt, etc.
Use plastic valve caps only. Metal capscould corrode and become difficult toremove.
NOTE
The compressor is an electric device. Fol- low local regulations for disposal.

INDEX
676Collision warner
crossing traffic rear 346
see City Safety 327
Collision warning from the rear 341
Color code, paintwork 652
Color codes 652
Compass 475 calibration 476
Condensation in headlights 645, 647, 648, 649
Connecting vehicle to Internet No connection or poor connection 529
via a mobile device (WiFi) 525
via cellular phone (Bluetooth) 525
via vehicle's modem 526
Connect phone 516
Contact information 28
Convertible seats 72
coolant 670 filling 610
Cooling system overheating 458
Cornering assistance 315 activating/deactivating 316
limitations 316
Corner Traction Control 281
Corrosion protection 650 Covering cargo compartment 588
Crash, see Collision 44
Crash event data 35
Cross Traffic Alert 346 activating/deactivating 347
limitations 347
messages 349
Cruise control 287 activating 288
manage speed 311
standby mode 290
turn off 289
Curb weight 665
Customer Privacy Policy 37
CZIP (Clean Zone Interior Package) 212
D
Data recording 35 transferring between vehicle and
workshop 599
Data sharing 530, 531
Daytime running lights 158
Decals location 660
Defrosting 225 Detecting obstacles City Safety 331
Dimensions 663
Dipstick, electronic 609
Direction of rotation 548Display driver information 86
Display lighting 167
Distance Alert 285 activating/deactivating 286
limitations 287
Set time interval 312
DivX ®
504
Door mirrors 174 compass 475, 476
dimming 174
outer 174
power folding 175
resetting 175
store position 190, 191
Download Center 599 use 600
Driveline transmission 426

INDEX
677
Drive mode 433
changing 438
driver support 314
Driver Alert Control 355 activating/deactivating 356
limitations 357
rest stop guidance 356
Driver performance 94 settings 95
Driver profile 139 edit 140, 141, 143
select 140
Driver support system 280 Drive mode 314
Drive systems 432 Driving cooling system 458
with a trailer 465
Driving economy 446
Driving through standing water 451 driving with a trailer towball load 667
towing capacity 667
E
Economical driving 446
Electrical outlet 580use 582
Electrical system 613Electric drive motor specifications 668
electric motor 432 Range 448
Electric parking brake 421
Electronic immobilizer 259
emergency brake lights 164
Emission inspection readiness 596Energy distribution using map data 439
Engine automatic start and stop of combus-
tion engine 433
overheating 458
start 412
turn off 414
Engine braking 417, 428, 445 Engine compartment coolant 610
engine oil 608
overview 607
Engine drag control 281
Engine oil 608 filling 609
filter 608
grade and volume 669
Engine shutdown 414
Engine specifications 668Engine temperature high 458
Environment 30Ethanol content max. 10% by volume 454
Exterior dimensions 663
Extra heater (Auxiliary heater) 240
F
Federal Clean Air Act 596
Ferry transport 440
Flooded road 451
Fluids, volumes 656, 671
Fluids and oils 670, 671 Fog lights rear 163
Four-C 440

INDEX
681
Low beams 159
Lower the rear end 585
Low oil level 609
Low-speed driving 443
activate with function button 444
M
Maintained climate comfort 238
start/stop 238
Maintenance 596 corrosion protection 650
Max. axle weight 665
Max. roof load 665
Media player 499, 500, 501 compatible file formats 507
voice control 152
Messages and symbols Adaptive Cruise Control 298
Assistance at risk of collision 369
BLIS 345
City Safety 340
Cross Traffic Alert 349
Lane Keeping Aid 361
Park Assist Camera 383
Park Assist Pilot 392
Parking Assist 374
Pilot Assist 308
stability and traction control system 284
Messages in display 109, 143 handling 110, 144
saved 111, 144
Mileage 91 electric motor 448
Misting condensation in headlights 644, 647
Mood lighting 167 adjusting 167
N
Net
cargo compartment 592
O
Occupant safety 45
Occupant weight sensor 59
Octane rating 455
Oil, see also Engine oil 669
On-board diagnostics 596
On-board Diagnostic socket 39
Option/accessory 23
Outside temperature gauge 96
Overheating 458, 465
Owner's information 18
OWNER'S MANUAL 23environmental labeling 25
in cellular phone 22
in the center display 19, 20
P
Paddle at steering wheel 205 Paint color code 652
paint damage and touch-up 651, 652
Panoramic roof 176 opening and closing 178
pinch protection 170
sun shade 180
ventilation position 179
Parallel parking 384
Park Assist Camera 375 activating 381
limitations 322
sensor field 380
Symbols and messages 383
trajectory lines 378
views 376