air conditioning VOLVO XC90 2015 User Guide

CLIMATE
* Option/accessory, for more information, see Introduction.
190 2. Tap the steering wheel heating button
repeatedly to select one of four levels:
Off,High, Middle or Low.
> The level changes and is displayed in the button.
Automatic steering wheel heatingThe automatic function starts heating the steer- ing wheel when the temperature is sufficientlycold and turns it off automatically when the wheelis sufficiently warm. 1. Tap
Settings in the center display's Top
view.
2. Tap
Climate.
3. Under
Auto Steering Wheel Heating
Level, select Off, Low, Middle or High to
activate/deactivate the automatic function.
Related information
• Climate system controls (p. 180)
• Climate system controls in the center display (p. 180)
• Steering wheel (p. 157)
Air conditioning
The air conditioning cools and dehumidifies the air in the passenger compartment.
Activating/deactivating the main air conditioning unit
1. For the air conditioning to function optimally, close the side windows and laminated panor- amic roof *.
Air conditioning button in Climate view
2. Go to Climate view in the center display. 3.
Tap
AC.
> The air conditioning is activated (button lights up)/deactivated (button is off).
NOTE
• For the air conditioning to function opti- mally, close the side windows and lamina- ted panoramic roof
*
• The air conditioning cannot be activated if the blower is set to
Off.
Activating/deactivating the rear air conditioning unit
*
Air conditioning button in the Rear climate tab in Cli-
mate view
1. Go to Climate view in the center display. 2. Go to
Rear climate.
3. Tap
3rd row climate.
> The air conditioning is activated (button lights up)/deactivated (button is off).

CLIMATE
* Option/accessory, for more information, see Introduction.191
NOTE
Air conditioning for the third row of seats*
cannot be activated if the main air condition- ing unit or the air conditioning for the second row of seats * is/are deactivated.
Activating/deactivating the third row air conditioning when the engine is started
The air conditioning for the optional third row of seats 7
can be set to start automatically when the
engine is started. 1. Tap
Settings in the center display's Top
view.
2. Tap
Climate.
3. Select
Third Row Climate On At Engine
Start to activate/deactivate the air condition-
ing for the third row of seats when the engine is started.
Related information
• Climate system controls in the center display (p. 180)
Turning seat heating
* on and off
The seats can be heated for added comfort in cold weather.
Activating/deactivating front seat heating
Steering wheel and seat buttons in the climate bar
1. Tap the left or right side steering wheel and seat button in the center display's climate bar to open the steering wheel and seatheating controls. If the vehicle is not equipped with the optional heated steering wheel or ventilatedseats, the button for seat heating will bedirectly accessible in the climate bar. 2. Tap the seat heating button repeatedly to
select one of four levels:
Off, High, Middleor Low.
> The level changes and is displayed in the button.
Activating/deactivating rear seat heating
From the front seat *
Temperature buttons for Rear climate in Climate view
1.
Tap Settings in the center display's Top
view.
2. Tap
Climate.
3. Under
Auto Driver Seat Heating Level andAuto Passenger Seat Heating Level,
select Off, Low, Middle or High to activate/
deactivate and to select the desired level.
7 Models with the optional 4-zone climate system only.

STARTING AND DRIVING
340•
Remove snow tires when threat of snow or ice has ended.
• Note that roof racks, ski racks, etc, increaseair resistance and also fuel consumption.
• At highway driving speeds, fuel consumptionwill be lower with the air conditioning on andthe windows closed than with the air condi-tioning off and the windows open.
• Using the onboard trip computer's fuel con-sumption modes can help you learn how todrive more economically.
Other factors that decrease gas mileage are:
• Dirty air cleaner
• Dirty engine oil and clogged oil filter
• Dragging brakes
• Incorrect front end alignment
Some of the above mentioned items and others are checked at the standard maintenance inter-vals.
Handling and roadholding
• Vehicle load, tire design and inflation pres- sure all affect vehicle handling. Therefore,check that the tires are inflated to the rec-ommended pressure according to the vehicleload. Loads should be distributed so thatcapacity weight or maximum permissible axleloads are not exceeded.
• At the specified curb weight your vehicle hasa tendency to understeer, which means thatthe steering wheel has to be turned more than might seem appropriate for the curva-ture of a bend. This ensures good stabilityand reduces the risk of rear wheel skid.Remember that these properties can alterwith the vehicle load. The heavier the load inthe cargo compartment, the less the ten-dency to understeer.
Driving through standing water
The vehicle should be driven with extreme cau- tion if it is necessary to drive through standingwater.
The vehicle can be driven through water up to a depth of approximately 17.7 in. (45 cm) at walk-ing speed to help prevent water from enteringthe differential and the transmission. Thisreduces the oil's lubricating capacity and mayshorten the service life of these components.
• Take particular care when driving through flowing water.
• After driving through water, apply the brakesand check that they are functioning correctly.
• Clean the electrical connections for trailerwiring after driving in mud or water.
• When driving through water, maintain lowspeed and do not stop in the water.

STARTING AND DRIVING
342•
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. 351)
• Before a long distance trip (p. 339)
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 bedamaged. It is therefore advisable to check the 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. 473)

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