2017 VOLVO XC90 TWIN ENGINE HYBRID engine coolant

MAINTENANCE AND SERVICING
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541
cautions must be followed to preventinjury. Always turn the ignition off whenreplacing distributor ignition componentse.g. plugs, coil, etc.
•Do not touch any part of the distributorignition system while the engine is run-ning. This may result in unintended move-ments and body injury.
The layout of the engine compartment may differ slightlyfrom model to model
Coolant expansion tank
Brake fluid reservoir
Washer fluid reservoir
Relay/fuse box
Air cleaner
Engine oil filler cap

Related information
•Ignition modes (p. 400)
•Opening and closing the hood (p. 539)
•Refilling the windshield washer fluid reservoir(p. 547)
Engine oil
The correct oil must be used for the stated oilchange (service) intervals to apply.
Volvo recommends:

MAINTENANCE AND SERVICING
546
Refilling coolant
Coolant helps keep the gasoline engine at theproper operating temperature. The heat transfer-red from the engine to the coolant can be usedto warm the passenger compartment.
When refilling coolant, follow the instructions onthe package and use the recommended amountof coolant. Never fill the cooling system withwater only; this could lead to freezing, corrosionand engine damage.

WARNING
If the engine has been running, the coolantwill be very hot. Allow the engine to coolbefore opening the coolant expansion tank. Ifthis is not possible, open the cap very slowlyto allow pressure to dissipate.
Coolant expansion tank
Lift the rubber strip by pressing it inward inthe engine compartment.
Remove the plastic cover by folding out thecatch and lifting the cover upward.
Unscrew the expansion tank cap and addcoolant. The level should be between theMIN and MAX marks on the tank.
Put the other components back in place in thereverse order.
CAUTION
•High levels of chlorine, chlorides andother salts may cause corrosion in thecooling system.
•Only use coolants with corrosion protec-tion recommended by Volvo.
•The ratio of coolant to water is 50/50.
•Mix the coolant with tap water of drinka-ble quality.
•If maintenance is performed on the cool-ing system or if the coolant is replaced,flush the cooling system with clean waterbefore adding new a new coolant/watermixture.
•The engine may only be operated with aproperly filled cooling system. Otherwise,high temperatures and cracks in the cyl-inders may occur.

Related information
•Coolant specifications and volumes(p. 566)

SPECIFICATIONS
566
Brake fluid specification and volume
Brake fluid transfers braking force when thebrake pedal is depressed to the master cylinderand to the slave cylinders on each wheel.
Topping up or replacing brake fluid should onlybe done by a trained and qualified Volvo servicetechnician.
Specification: Volvo Original Standard DOT 4 orequivalent

Related information
•Engine compartment overview (p. 540)
Coolant specifications and volumes
Coolant volumes and specifications.
Specification: Coolant with corrosion inhibitormixed with water (50/50 mix), see packaging.
Consult a Volvo retailer if you are uncertain.
Different types of coolant should not be mixed tohelp avoid health risks.

SPECIFICATIONS
567
Engine specifications
The following table provides technical data forthe respective engines. Engine specifications forSpecial Edition vehicles may vary.
Not all engines listed here are available in allmarkets.
SpecificationT8
Engine designationB4204T28
Output (kW/rps)233/100
Output (hp/rpm)313/6000
Torque (Nm/rps)400/37–90
Torque (ft. lbs./rpm)295/2200–5400
No. of cylinders4

Electric motor
Max. power:87/7000 (65 kW/117).
Torque: 240 Nm/0-50 rpm.

Related information
•Engine oil specifications and volume(p. 568)
•Coolant specifications and volumes (p. 566)