2017 VOLVO XC90 TWIN ENGINE HYBRID fuel pump

STARTING AND DRIVING
391
Fuel
Volvo recommends the use of detergent gaso-line to control engine deposits.

Deposit control gasoline (detergent
additives)
Detergent gasoline is effective in keeping injec-tors and intake valves clean. Consistent use ofdeposit control gasolines will help ensure gooddrivability and fuel economy. If you are not surewhether the gasoline contains deposit controladditives, check with the service station operator.

NOTE
Volvo does not recommend the use of exter-nal fuel injector cleaning systems.

Unleaded fuel
Each Volvo has a three-way catalytic converterand must use only unleaded gasoline. U.S. andCanadian regulations require that pumps deliver-ing unleaded gasoline be labeled "UNLEADED".Only these pumps have nozzles which fit yourvehicle's filler inlet. It is unlawful to dispense lea-ded fuel into a vehicle labeled "unleaded gaso-line only". Leaded gasoline damages the three-way catalytic converter and the heated oxygensensor system. Repeated use of leaded gasolinewill lessen the effectiveness of the emission con-trol system and could result in loss of emissionwarranty coverage. State and local vehicle
inspection programs will make detection of mis-fueling easier, possibly resulting in emission testfailure for misfueled vehicles.
NOTE
Some U.S. and Canadian gasolines contain anoctane enhancing additive called methyl-cyclopentadienyl manganese tricarbonyl(MMT). If such fuels are used, your EmissionControl System performance may be affected,and the Check Engine Light (malfunctionindicator light) located on your instrumentpanel may light. If this occurs, please returnyour vehicle to a trained and qualified Volvoservice technician for service.

Gasoline containing alcohol and ethers,
"Oxygenated fuels"
Some fuel suppliers sell gasoline containing"oxygenates" which are usually alcohols orethers. In some areas, state or local laws requirethat the service pump be marked indicating useof alcohols or ethers. However, there are areas inwhich the pumps are unmarked. If you are notsure whether there is alcohol or ethers in thegasoline you buy, check with the service stationoperator. To meet seasonal air quality standards,some areas require the use of "oxygenated" fuel.
Volvo allows the use of the following "oxygen-ated" fuels; however, the octane ratings listedmust still be met.
Alcohol – Ethanol
Fuels containing up to 10% ethanol by volumemay be used. Ethanol may also be referred to asEthyl alcohol, or "Gasohol".
Ethers – MTBE: Fuels containing up to15% MTBE may be used.

Methanol
Do not use gasolines containing methanol(methyl alcohol, wood alcohol). This practice canresult in vehicle performance deterioration andcan damage critical parts in the fuel system. Suchdamage may not be covered under the NewVehicle Limited Warranty.

Related information
•Octane rating (p. 392)
•Opening/closing the fuel filler door (p. 393)

STARTING AND DRIVING
392
Octane rating
Volvo requires premium fuel (91 octane orabove) for best performance.

Minimum octane
Sample fuel pump octane label

TOP TIER Detergent Gasoline
Volvo endorses the use of “TOP TIER DetergentGasoline” where available to help maintain engineperformance and reliability. TOP TIER DetergentGasoline meets a new standard jointly estab-lished by leading automotive manufactures tomeet the needs of today

STARTING AND DRIVING
}}
393
Opening/closing the fuel filler door
The fuel tank has a filling system that does nothave a cover.

Opening/closing the fuel filler door
An arrow next to the fuel pumpsymbol in the instrument panelindicates the side of the vehiclewhere the fuel filler door islocated.
1. Press the button on the lighting panel.
>Pressure equalization in the fuel tank cau-ses a slight delay before the fuel fillerdoor opens. Fuel tank Fuel lid isopening will be displayed in the instru-ment panel, followed by Fuel tank Readyfor refueling.
2.After refueling, close the fuel filler door bypressing lightly.
Refueling from a service station pump
To refuel:
1.Open the fuel filler door. Do not refuel with
the engine running1
2. Insert the pump's nozzle into the fuel fillerpipe's opening as far as possible (see theillustration).
3. Avoid overfilling the fuel tank. Do not pressthe handle on the filler nozzle after it hasstopped pumping. Too much fuel in the tankin hot weather conditions can cause the fuelto overflow. Overfilling could also cause dam-age to the emission control systems.
1If the engine is running when the vehicle is refueled, the Check Engine Light (malfunction indicator lamp) may indicate a fault. However, your vehicle's performance will not be affected.

WHEELS AND TIRES
486

CAUTION
•Snow chains should not be used onwheels larger than 19".
•Always follow the chain manufacturer'sinstallation instructions carefully. Installchains as tightly as possible andretighten periodically.
•Check local regulations regarding the useof snow chains before installing.
•Use single-sided snow chains only.
•Never exceed the chain manufacturer'sspecified maximum speed limit. (Underno circumstances should you exceed31 mph (50 km/h).
•Avoid bumps, holes or sharp turns whendriving with snow chains.
•The handling of the vehicle can beadversely affected when driving withchains. Avoid fast or sharp turns as wellas locked wheel braking.
Checking tire inflation pressure
Correct tire inflation pressure helps improve driv-ing stability, save fuel and increase the servicelife of the tires.

WARNING
•Under-inflation is the most commoncause of tire failure and may result insevere tire cracking, tread separation, or"blow-out," with unexpected loss of vehi-cle control and increased risk of injury.
•Under-inflated tires reduce the load car-rying capacity of your vehicle.

Cold tires
Inflation pressure should be checked when thetires are cold.
The tires are considered to be cold whenthey have the same temperature as the sur-rounding (ambient) air.
This temperature is normally reached after thevehicle has been parked for at least 3 hours.
After driving a distance of approximately 1 mile(1.6 km), the tires are considered to be hot. If youhave to drive farther than this distance to pumpyour tire(s), check and record the tire pressurefirst and add the appropriate air pressure whenyou get to the pump.
When weather temperature changes occur, tireinflation pressures also change. A 10-degree
temperature drop causes a corresponding dropof 1 psi (7 kPa) in inflation pressure. Check yourtire pressures frequently and adjust them to theproper pressure, which can be found on the vehi-cle's tire information placard or certification label.
If checking tire pressure when the tire is hot,never "bleed" or reduce air pressure. The tiresare hot from driving and it is normal for pressuresto increase above recommended cold pressures.A hot tire at or below recommended cold inflationpressure could be significantly under-inflated.
Recommended inflation pressures
Tire inflation placard
A tire inflation pressure placard is located on thedriver's side B-pillar (the structural member at theside of the vehicle, at the rear of the driver's dooropening). This placard indicates the designation

MAINTENANCE AND SERVICING
}}
* Option/accessory, for more information, see Introduction.521
Function[A]
Horn20
Alarm siren*5
Brake system control module(valves, parking brake)40
Windshield wipers30
Tailgate window washer25
Heated windshield*, passengerside40
––
Brake system control module(ABS pump)40
––
Heated windshield*, passengersideShunt
Feed when ignition is switchedon to: engine control module,transmission components, elec-trical power steering, centralelectrical module
5
Exterior vehicle sound (certainmarkets)5
Passenger side headlight7,5
Function[A]
––
––
––
Air bags; Occupant Weight Sen-sor (OWS)5
Driver side headlight7.5
Accelerator pedal sensor5
Transmission control module;Gear selector control module15
Engine control module5
––
––
––
––
Engine control module; Actuator;Turbo-charger valve20
Solenoids; Valves; Engine cool-ing system thermostat10
Vacuum regulators; Valve7.5
Function[A]
Spoiler shutter control module;Radiator shutter control module;Fuel leakage detection
5
––
Heated oxygen sensors (frontand rear)15
Oil pump solenoid; A/C mag-netic coupling; heated oxygensensor (center)
15
––
Engine control module20
Ignition coils; Spark plugs15
––
––
Transmission oil pump controlmodule30
Vacuum pump control module40
Transmission actuator25
––

||
MAINTENANCE AND SERVICING
* Option/accessory, for more information, see Introduction.526
FunctionA
Rear passenger-side door module20
Fuses in the cargo compartment10
Internet connection control module;Volvo On Call control module5
Rear driver-side door module20
Infotainment control module(amplifier)40
Climate system blower module(rear)40
Multi-band antenna module5
Front seat massage function5
––
Tailgate window wiper15
Fuel pump control module15
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
FunctionA
Coolant pump10
––
Front driver-side front door module20
Active chassis control module*20
––
Sensus control module10
––
––
Front passenger-side front doormodule20
Display for rear seat conveniencefunctions5C
––
Circuit breaker for fuses 53 and 5815
ACertain markets only.BNot ExcellenceCExcellence only

Related information
•Fuses (p. 516)
•Replacing fuses (p. 517)
•Fuses in the engine compartment (p. 518)
•Fuses in the cargo compartment (p. 527)