2017 VOLVO XC90 T8 radiator

STARTING AND DRIVING
375
Related information
•Towing recommendations (p. 377)
Overheating the engine and transmission
In demanding driving conditions, such as when transporting heavy loads, driving in mountainousareas or in very hot weather there is a risk ofoverheating the engine or transmission.
• The engine's output may be slightly limited if there is a risk of overheating.
• Remove e.g., auxiliary lights mounted in frontof the grille in hot weather.
• If the temperature of the engine coolantbecomes too high, the warning symbol will illuminate and the message
Engine
temperature/Stop safely will be displayed.
Stop the vehicle as soon as possible in a safe place and let the engine idle for severalminutes.
• If the message
Engine temperature/High
temperature Turn off engine or Engine
coolant/Stop safely is displayed, stop
safely and turn off the engine.
• If the transmission begins to overheat, an alternative gear shifting program will beselected. An integrated protective functionwill also by activated, the warning symbol will illuminate and the message
Transmission
warmHigh temperature Reduce speed
or Transmission warmStop safely, wait
for cooling will be displayed in the instru-
ment panel. •
The air conditioning may be switched off temporarily.
• After a prolonged period of driving, do notturn off the engine immediately after stop-ping.
• The engine cooling fan commonly continuesto run for several minutes after the enginehas been turned off.
WARNING
The cooling fan (located at the front of the engine compartment, behind the radiator) maystart or continue to operate (for up to6 minutes) after the engine has beenswitched off.
Related information
•
Driving with a trailer (p. 384)
• Before a long distance trip (p. 372)

STARTING AND DRIVING
376
Winter driving
Check your vehicle before the approach of cold weather.
The following advice is worth noting:
• Make sure that the engine coolant contains 50 percent antifreeze. Any other mixture willreduce freeze protection. This gives protec-tion against freezing down to –31 °F(–35 °C). The use of "recycled" antifreeze isnot approved by Volvo. Different types ofantifreeze must not be mixed.
• Volvo recommends using only genuine Volvoantifreeze in your vehicle's radiator.
• Try to keep the fuel tank well filled – thishelps prevent the formation of condensationin the tank. In addition, in extremely coldweather conditions it is worthwhile to addfuel line de-icer before refueling.
• The viscosity of the engine oil is important.Oil with low viscosity (thinner oil) improvescold-weather starting as well as decreasingfuel consumption while the engine is warm-ing up. Full synthetic 0W-30 oil is recom-mended for driving in areas with sustainedlow temperatures.
• The load placed on the battery is greater dur-ing the winter since the windshield wipers,lighting, etc., are used more often. Moreover,the capacity of the battery decreases as thetemperature drops. In very cold weather, apoorly charged battery can freeze and be damaged. It is therefore advisable to checkthe state of charge more frequently andspray an anti-rust oil on the battery posts.
• Volvo recommends the use of snow tires onall four wheels for winter driving.
• To prevent the washer fluid reservoir fromfreezing, add washer solvents containingantifreeze. This is important since dirt is oftensplashed on the windshield during winterdriving, requiring the frequent use of thewashers and wipers. Volvo Washer Solventshould be diluted as follows: Down to 14 °F(–10 °C): 1 part washer solvent and 4 partswater Down to 5 °F (–15 °C): 1 part washersolvent and 3 parts water Down to 0 °F(–18 °C): 1 part washer solvent and 2 partswater Down to –18 °F (–28 °C): 1 partwasher solvent and 1 part water.
• Use Volvo Teflon Lock Spray in the locks.
• Avoid using de-icing sprays as they cancause damage to the locks.
Related information
•Snow tires and chains (p. 479)
Towing eyelet
When used, the towing eyelet should always be securely attached in the opening on the rightside of the rear bumper. There is a cover overthe attachment point.
Using the towing eyelet
Take out the towing eyelet, which is stored under the floor in the cargo compartment.

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MAINTENANCE AND SERVICING
* Option/accessory.
514
Function [A]
– –
Horn 20
Alarm siren* 5
Brake system control module (valves, parking brake) 40
Windshield wipers 30
Tailgate window washer 25
Heated windshield
*, passenger
side 40
– –
Brake system control module (ABS pump)
40
– –
Heated windshield
*, passenger
side Shunt
Feed when ignition is switched on to: engine control module,transmission components, elec-trical power steering, centralelectrical module 5
Exterior vehicle sound (certain markets)
5
Function
[A]
Passenger side headlight 7,5
– –
– –
– –
Air bags; Occupant Weight Sen- sor (OWS) 5
Driver side headlight Driver's side headlight, certain LED models7.5
15
Accelerator pedal sensor 5
Transmission control module; Gear selector control module 15
Engine control module 5
– –
– –
– –
– –
Engine control module; Actuator; Turbo-charger valve20
Function
[A]
Solenoids; Valves; Engine cool- ing system thermostat 10
Vacuum regulators; Valve 7.5
Spoiler shutter control module; Radiator shutter control module;Fuel leakage detection 5
– –
Heated oxygen sensors (front and rear)
15
Oil pump solenoid; A/C mag- netic coupling; heated oxygensensor (center)15
– –
Engine control module 20
Ignition coils; Spark plugs 15
– –
– –
Transmission oil pump control module
30
Vacuum pump control module 40
Transmission actuator 25