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07 Wheels and tires
General information
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180
•Incorrectly mounted tires impair the car's braking properties and ability to forceaside rain, snow and slush.
• The tires with the most tread shouldalways be at the rear (to reduce the risk ofskidding).
• Contact a Volvo workshop if you areunsure about the tread depth.
Storing wheels and tiresWhen storing complete wheels (tires mounted on rims), they should be suspended off thefloor or placed on their sides on the floor. Tires not mounted on rims should be stored on their sides or standing upright, but shouldnot be suspended.
CAUTION
Tires should preferably be stored in a cool, dry, dark place, and should never bestored in close proximity to solvents, gaso-line, oils, etc.
WARNING
•The wheel and tire sizes for your Volvo are specified to meet stringent stabilityand handling requirements. Unap-proved wheel/tire size combinationscan negatively affect your vehicle'sstability and handling.
• Any damage caused by installation ofunapproved wheel/tire size combina-tions will not be covered by your newvehicle warranty. Volvo assumes noresponsibility for death, injury, orexpenses that may result from suchinstallations.
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07 Wheels and tires
Changing wheels
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201
the vehicle, check that the jack is still cor- rectly positioned in the attachment.
7. Raise the vehicle until the wheel to be changed is lifted off the ground.
8. Unscrew the wheel bolts completely and carefully remove the wheel so as not todamage the threads on the studs.
NOTE
To avoid excessive wear and the necessity of rebalancing, mark and reinstall wheelsin the same location and position as beforeremoval. To lessen the chance of imbal-ance, each wheel hub is equipped with aguide stud to ensure that a removed wheelcan be reinstalled in its original position (aswhen changing over to winter tires/wheels).
CAUTION
•The vehicle must not be driven with wheels of different dimensions or witha spare tire other than the one thatcame with the vehicle. The use of dif-ferent size wheels can seriously dam-age your vehicle's transmission.
• Correct tightening torque on wheelbolts must be observed.
• The wheel bolts should never begreased or lubricated.
• Extended, chromed wheel bolts mustnot be used with steel rims, as theymake it impossible to fit the hub caps.
Installing the wheel1. Clean the contact surfaces on the wheel
and hub.
2. Lift the wheel and place it on the hub.
3. Install the wheel bolts and tighten hand- tight. Using the lug wrench, tighten cross- wise until all bolts are snug.
4. Lower the vehicle to the ground and alter- nately tighten the bolts crosswise to103 ft.lbs. (140 Nm).
5. Install the wheel cover (where applicable).
WARNING
• The jack must correctly engage the bar in the jack attachment. The vehicle'sweight must not rest on the jackattachment. See illustration "Attachingthe jack" on the previous page.
• Be sure the jack is on a firm, level,non-slippery surface.
• Never allow any part of your body tobe extended under a vehicle suppor-ted by a jack.
• Use the jack intended for the vehiclewhen replacing a wheel. For any otherjob, use stands to support the side ofthe vehicle being worked on.
• Apply the parking brake and put thegear selector in the (
P)ark position.
• Block the wheels standing on theground, use rigid wooden blocks orlarge stones.
• The jack should be kept well-greasedand clean, and should not be dam-aged.
• No objects should be placed betweenthe base of jack and the ground, orbetween the jack and the attachmentbar on the vehicle.
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07 Wheels and tires
Tire Pressure Monitoring System (TPMS)
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* Option/accessory, for more information, see Introduction.205
4. Press and hold the
Reset button on the
left-side steering wheel lever until
TIRE
PRESSURE CALIBRATED is displayed.
Activating/deactivating TPMS (Canadian models only)
1. Switch off the engine.
2. Turn the ignition key to position I or II.
3. Press and hold the Reset button on the
left-side steering wheel lever until
TIRE
PRESS SYST OFF is displayed.
Repeat steps 1-3 to turn TPMS on again.
Self-supporting run flat tires (SST)*
Self-supporting run flat tires are available as optional equipment. The vehicle must beequipped with the Tire Pressure MonitoringSystem (TPMS) if tires of this type are instal-led. Tires of this type have specially reinforced sidewalls that make it possible to continuedriving to a limited extent even though the tirehas lost some or all of its inflation pressure.These tires are mounted on special rims (nor-mal tires can also be mounted on these rims). If an SST tire loses inflation pressure, the yel- low TPMS symbol illuminates in the instru-ment panel and a text message is also dis-played. If this happens, reduce speed to not more than 50 mph (80 km/h). The tire shouldbe replaced as soon as possible. Drive carefully; it may be difficult to determine which tire is damaged. To find the damagedtire, check the inflation pressure in all fourtires.
WARNING
•
SST tires should only be mounted by service technicians who are familiarwith tires of this type.
• SST tires may only be mounted onvehicles equipped with TPMS.
• Do not drive faster than 50 mph(80 km/h) if TPMS indicates that a tirehas lost inflation pressure.
• Do not drive farther than 50 miles(80 km) before replacing a damagedSST tire.
• Drive carefully and avoid e.g., hardbraking or fast turns.
• SST tires must be replaced if they aredamaged. A tire of this type cannot berepaired.