air condition VOLVO XC90 2015 Owner's Guide

WHEELS AND TIRES
473
Snow tires and chains
The use of snow chains and/or winter tires can help improve traction in winter driving conditions.
Snow chains can be used on your Volvo with the following restrictions:
• Snow chains should be installed on front wheels only. Use only Volvo approved snowchains.
• If accessory, aftermarket or "custom" tiresand wheels are installed and are of a size dif-ferent than the original tires and wheels,chains in some cases CANNOT be used.Sufficient clearances between chains andbrakes, suspension and body componentsmust be maintained.
• Some strap-on type chains will interfere withbrake components and therefore CANNOTbe used.
• All Wheel Drive models
: Snow chains
should only be installed on the front wheels.
• Certain size tires may not allow the assemblyof snow chains/traction devices.
Consult your Volvo retailer for additional snow chain information.
CAUTION
• Snow chains should not be used on wheels 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 common cause 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 tiresInflation pressure should be checked when the tires are cold. The tires are considered to be cold when they have the same temperature as the sur-rounding (ambient) air. This temperature is normally reached after the vehicle 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, tire inflation pressures also change. A 10-degree

MAINTENANCE AND SERVICING
488
Volvo's service program
Periodic maintenance and service performed at the intervals specified in your Warranty andService Records Information booklet will helpkeep your vehicle running well.
IntroductionThe maintenance services contain several checks that require special instruments and tools andtherefore must be performed by a qualified tech-nician. To keep your Volvo in top condition, spec-ify time-tested and proven Genuine Volvo Partsand Accessories.
The Federal Clean Air Act

MAINTENANCE AND SERVICING
495
Climate system serviceService and repairs on the air conditioning sys- tem should only be done by a trained and quali-fied Volvo service technician.
Troubleshooting and repairsThe air conditioning system contains a floures- cent tracer substance. Ultraviolet light is used tosearch for leaks in the system.
Refrigerant R134a
WARNING
The air conditioning system contains the refrigerant R134a under pressure. Serviceand repairs on the system should only bedone by a trained and qualified Volvo servicetechnician.
Related information
• Climate control system (p. 176)
Start battery
The start (main) battery is used to power the starter motor and other electrical componentsand systems. The start battery should only be replaced by a trained and qualified Volvo service technician.
The vehicle has an alternating current generator. The start battery is called an Absorbed Glass Mat (AGM) 12-volt battery that is dimensioned foruse in vehicles with carbon dioxide-reducingfunctions such as Start/Stop and regenerativecharging, and to support the vehicle's variouselectrical systems and functions. The service life of a battery is affected by factors such as driving conditions/style, the number ofstarts, climate, etc. Extreme cold may also furtherdecrease the battery

SPECIFICATIONS
* Option/accessory, for more information, see Introduction.541
Air conditioning refrigerant
The air conditioning system in your car contains a CFC-free refrigerant.
A/C decal
R134a decal
Refrigerant
Models with R134a
WeightType
1.65 lbs (750 g)
2.2 lbs (1000 g) on models with A/C for the third row of seats *R134a
WARNING
The air conditioning system contains R134a refrigerant under pressure. Service andrepairs may only be carried out by a trainedand qualified Volvo service technician.
Compressor oil
VolumeType
2.0 fl. oz. (60 ml)
2.7 fl. oz. (80 ml) on models with A/C for the third row of seats *PAG SP- A2
EvaporatorThe A/C system' s evaporator may never be repaired or replaced with a previously used evap-orator. A new evaporator must be certified andmarked according to SAE J2842.
Related information
•Climate system service (p. 495)
Brake fluid specification and volume
Brake fluid transfers braking force when the brake pedal is depressed to the master cylinderand to the slave cylinders on each wheel. Topping up or replacing brake fluid should only be done by a trained and qualified Volvo servicetechnician.
Specification: DOT 4 boiling point >536 °F
(>280 °C)
Related information
• Engine compartment overview (p. 519)

555
INDEX
A
A/C (air conditioning) 190
Accessory installation warning 22, 24
Active high beams 141
Active yaw control 308
Adaptive brake lights 334
Adaptive cruise control 252, 254, 255,257, 258, 259, 268, 269, 270, 272
passing assistance 270
radar sensor 269, 270
Adaptive Cruise Control fault tracing 271
Airbags disconnecting the front passenger