2017 VOLVO XC90 T8 engine

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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

MAINTENANCE AND SERVICING
* Option/accessory.519
Function A
– –
Tailgate window wiper 15
Fuel pump control module 15
Relay windings for engine compart- ment electrical module; Relay wind-ing for transmission oil pump 5
– –
Driver side front seat heating
*15
Passenger side front seat heating
*15
Coolant pump 10
– –
Front driver-side front door module 20
Active chassis control module
*20
– –
Sensus control module 10
– –
– –
Function
A
Front passenger-side front door module20
Display for rear seat convenience functions; On-board diagnostics (OBDII)
C
; Extra movement sensor
(certain markets only) C5
C
– –
Circuit breaker for fuses 53 and 58 15
A
Certain markets only.
B Not Excellence
C Excellence only
Related information
• Fuses (p. 509)
• Replacing fuses (p. 510)
• Fuses in the engine compartment (p. 511)
• Fuses in the cargo compartment (p. 520)

MAINTENANCE AND SERVICING
523
•
Fuses in the passenger compartment (p. 516)
• Fuses in the engine compartment (p. 511)

MAINTENANCE AND SERVICING
524
Replacing bulbs
The halogen headlight bulbs 3
can be replaced
by the owner.
Before the halogen headlight bulbs can be replaced, that plastic covering over the headlighthousing has to be removed and the housing hasto be lifted out of the vehicle.
NOTE
Halogen headlights are not available on all models or in all markets. Consult your Volvo retailer if you are uncertain about the type of headlights in your vehicle.To do so:
Lift the rubber strip by pressing in toward the engine compartment.
Release the pins in the plastic covering's four clips by pressing them down with ascrewdriver or similar object and remove thecovering.
The turn signal, high/low beam, Daytime RunningLight and parking light bulbs will be accessiblewhen the plastic covering has been removed. Put the covering back in place in the reverse order.NOTE
The pins in the clips have to be pressed back completely before the clips are placed in theplastic covering. When the covering is put back in place, the pins must be pressed so that their upper sur-face is flush with the surface of the clip.
3 Halogen headlights are not available on all models.

MAINTENANCE AND SERVICING
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525
NOTE
•For information regarding any bulbs not mentioned in this section, please contactyour Volvo retailer or a trained andauthorized Volvo service technician.
• Always switch off the ignition before star-ting to replace a bulb.
• If an error message remains in the dis-play after a faulty bulb has been replaced,contact an authorized Volvo workshop.
• Condensation may form temporarily onthe inside of the lenses of exterior lightssuch as headlights, fog lights, or taillights.This is normal and the lights aredesigned to withstand moisture. Normally,condensation will dissipate after thelights have been on for a short time.
• The optional Active Bending Light bulbscontain trace amounts of mercury. Thesebulbs should always be disposed of by atrained and qualified Volvo service techni-cian.
CAUTION
Never touch the glass of bulbs with your fin- gers. Grease and oils from your fingers vapor-ize in the heat and will leave a deposit on thereflector, which will damage it.
WARNING
• The ignition should be switched off com- pletely (be in ignition mode
0) when
replacing bulbs.
• If the engine has been running just prior to replacing bulbs in the headlight hous-ing, please keep in mind that componentsin the engine compartment will be hot.
Front bulbs (vehicles with halogen headlights)
Low beam
High beam
Parking light/Daytime Running Light
Turn signal
(Not in use)

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MAINTENANCE AND SERVICING
534
Hood completely closed
Related information
•Engine compartment overview (p. 534)
• Door and seat belt reminders (p. 68)
Engine compartment overview
The engine compartment overview shows some maintenance points.
Some of the components in the vehicle's electri- cal drive system are located in the engine com-partment.
WARNING
• Orange cables should only be handled by a trained and qualified Volvo service tech-nician.
• A number of the vehicle's componentsuse high voltage and can be very danger-ous if handled improperly.
• Do not touch any components that havenot been clearly described/explained inthis manual.
• Use caution when checking/refilling flu-ids in the engine compartment.
• The cooling fan (located at the front ofthe engine compartment, behind the radi-ator) may start or continue to operate (forup to 6 minutes) after the engine hasbeen switched off.
• Engine cleaning should only be done by aworkshop. If engine cleaning agents areused when the engine has been running,there may a fire risk.
• Before performing any operations in theengine compartment, the ignition shouldalways be completely switched off (in mode
0) and there should be no remote
keys in the passenger compartment. Thegear selector should be in the P (park)
position. If the engine has been running, wait until it has cooled before touching

MAINTENANCE AND SERVICING
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535
any components in the engine compart- ment.
• The distributor ignition system operatesat very high voltages. Special safety pre-cautions must be followed to prevent injury. Always turn the ignition
off when
replacing distributor ignition components e.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 slightly from 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. 389)
• Opening and closing the hood (p. 533)
• Refilling the windshield washer fluid reservoir (p. 541)
Engine oil
The correct oil must be used for the stated oil change (service) intervals for the warranty toapply.
Volvo recommends:

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MAINTENANCE AND SERVICING
536
CAUTION
•Not checking the oil level regularly can result in serious engine damage if the oillevel becomes too low.
• Oil that is lower than the specified qualitycan damage the engine.
• Volvo does not recommend the use of oiladditives.
• Always add oil of the same type and vis-cosity as already used.
• Oil changes should be carried out by atrained and qualified Volvo service techni-cian.
• Using oil of higher than the specifiedquality is permitted and may be neces-sary for demanding driving.
Also, refer to the Warranty and Service Records information booklet for information on oil changeintervals and oil specifications.
Related information
•
Checking and refilling engine oil (p. 536)
• Engine oil specifications and volume(p. 562)
Checking and refilling engine oil The oil level is checked electronically.
Oil filler cap 6
It may be necessary to top up engine oil between regularly scheduled services. No action is necessary until a message is dis- played in the instrument panel.
WARNING
If this symbol and Engine oil level
Service required are displayed,
have the vehicle checked by a trained and qualified Volvo service
technician. The oil level may be too high. Do not allow oil to spill onto or come into con- tact with hot exhaust pipe surfaces.
CAUTION
If this symbol and Engine oil level
low Add "....." (an amount of oil) are
displayed, add the amount of oil indicated.
Checking the oil levelThe oil level can be checked in the center display when theengine is not running. From the center display's Home view, swipe the screenfrom right to left to open App
view. Tap
Car status and then tap Status to
show the oil level.
Oil level graphic in the center display
6 Models with an electronic oil level sensor do not have a dipstick.