2021 VOLVO V90 CROSS COUNTRY coolant temperature

STARTING AND DRIVING
442
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. Readings are 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. 440)
Fuel (p. 439)
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-

STARTING AND DRIVING
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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. 598)
Driving with a trailer (p. 446)
Preparing for a long trip (p. 436)
Battery drain
The electrical functions in the vehicle drain the battery to varying degrees. Avoid usingignition mode II when the engine is switched
off. Use ignition mode I instead, as this uses
less electrical current.
Note that certain accessories may also drain power from the electrical system. Do not usefunctions that use a lot of electrical currentwhen the engine is turned off. Examples ofsuch functions are: blower
headlights
windshield wipers
audio system (especially at high volume).
If the starter battery voltage is low, a message is shown in the driver display. The vehicle'senergy-saving function will then turn off orreduce certain functions, such as the blowerand/or the audio system.
–To charge the battery, start the engine and let it run for at least 15 minutes (drivingcharges the battery faster than letting theengine idle).
Related information
Starter battery (p. 600)
Ignition modes (p. 401)

MAINTENANCE AND SERVICE
598
Refilling coolant
When refilling coolant, follow the instructions on the package. Never fill the cooling systemwith only water. The risk of freezing isincreased with too low or too high amountsof coolant.
If there is coolant under the vehicle, smoke from the cooling system, or if more than2 liters (about 2 quarts) of coolant has beenadded to the system, there could be some-thing wrong with the cooling system and star-ting the vehicle could damage the engine. Calla tow truck and do not attempt to start theengine.
WARNING
The coolant may be very hot. Never unscrew the cap when the coolant is hot. Ifcoolant must be filled, unscrew the expan-sion tank cap slowly to relieve overpres-sure.
Coolant expansion tank, left-hand drive vehicle
Unscrew the cover in the plastic covering.
Unscrew the expansion tank cap and fill coolant as needed. The level should notexceed the yellow MAX mark inside the
expansion tank.
Put the components back in place in thereverse order.
CAUTION
Do not ingest the contents. May cause damage to organs (kidneys).
Use premixed coolant according toVolvo's recommendations. If concen-trated coolant is used, make sure thatthe coolant mixture is 50% coolantand 50% water of acceptable quality.
Do not mix different types of coolant.
To help ensure sufficient corrosion pro-tection in the system, only use newcoolant when replacing larger compo-nents in the cooling system.
Never run the engine unless the cool-ing system is properly filled. Animproperly filled cooling system couldlead to high temperatures and cracksin the cylinder heads.
High levels of chlorine, chlorides andother salts may cause corrosion in thecooling system.

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MAINTENANCE AND SERVICE
608Fuse pliers are provided on the inside of the fuse box cover to assist in removing andinserting fuses.
There are also spaces for several extra fuses inthe fusebox.
PositionsThere is a decal with a diagram of the loca-tions of the fuses on the inside of the cover.
Function
Ampere Type
– – Micro
–– Micro
Lambda sensors; Electric charge pressure module15 Micro
Ignition coils (gasoline); spark plugs (gasoline) Exhaust sensor; Diesel particulate sensor15 Micro
Oil pump solenoid; A/C magnetic coupling; heated oxygen sensor, center (gasoline); heated oxygen sensor, rear (diesel); heated oxygen sensor, front (gasoline/diesel)
15 Micro
Vacuum regulator; Valve; Output pulse valve (diesel); Oil level/temperature sensor (gasoline/diesel); Glow plug (GCU) (diesel)7.5 Micro
Engine control module; actuator; throttle unit; EGR valve (diesel); turbo position sensor (diesel); turbocharger valve (gasoline) 20 Micro
Engine control module
5 Micro
–– Micro
Solenoids (gasoline); Fuel leakage control valve; Engine cooling system thermostat (gasoline); EGR vacuum valve (die- sel); Glow control module (diesel); Supercharger clutch (gasoline); Crankshaft ventilation heater (diesel); Transmissionoil cooler valve (diesel)10 Micro
Spoiler damper control module; Cooler damper control module; Relay coils for output pulse (diesel); Coolant valve Fuel leakage detection (gasoline)
5 Micro

INDEX
667
Door mirrors 176
compass 458
dimming 177
outer 176
power folding 177
resetting 177
store position 192, 193
Download Center 585 use 585
Driveline transmission 412
Drive mode 419 changing 421
ECO 422, 424
when using driver support 323
Driver Alert Control 356 activating/deactivating 357
limitations 358
rest stop guidance 357
Driver performance 96 settings 97
Driver profile 140 edit 141, 142, 143
select 141
Driver support system 278 Drive mode 323
Drivingcooling system 442
with a trailer 446
Driving economy 435
Driving through standing water 437driving with a trailer towball load 656
towing capacity 656
E
ECO climate 422
ECO mode 422
activate with function button 424
Economical driving 422, 435
Electrical outlet 566 use 567
Electrical system 600
Electric parking brake 406
Electronic immobilizer 260
emergency brake lights 165
Emission inspection readiness 582 Engine overheating 442
start 398
Start/Stopfunction 425
turn off 400
Engine braking 403, 433 Engine compartment coolant 598
engine oil 595
overview 594
Engine drag control 279
Engine oil 595 checking and filling 596
grade and volume 658
Engine shutdown 400
Engine specifications 657Engine temperature high 442
Environment 28Ethanol content max. 10% by volume 439
Exterior dimensions 653
F
Federal Clean Air Act 582
Ferry transport 429
Flooded road 437
Fluids, volumes 646, 659