A8L Quattro Sedan V8-4.2L (BVJ) (2007)
Wheel Fastener: Service and Repair
Wheel Bolt Tightening Specifications
Cap
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The removal hook - A - for removing the center cap is located in the vehicle's tool kit.
Wheel Bolts
The adapter to loosen/tighten the anti-theft wheel bolts is located with the vehicle tool kit.
‹› Be sure to tighten wheel bolts in diagonal sequence to the following specified torque:
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Return the adapter to the vehicle tools.
Correct Wheel Installation
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When installing wheels, you must observe the following points to ensure wheels fit securely:
‹› Always tighten wheel bolts to the specified torque so the wheel bolt seats in rim are not deformed.
‹› When installing a wheel, do not tighten first wheel bolt immediately (for example, with an impact wrench). This would prevent other bolts from
centering rim properly when they are screwed in. Rim could then become loose, even if tightened to specified torque.
‹› Before installing wheels, check for rust/corrosion in wheel bolt seats and contact surfaces between rims and hubs, removing if necessary.
Otherwise, the wheel bolts can lose tension after installation and the rim can come loose.
CAUTION!
‹› If the above points are not observed, wheels can come loose and the wheel bolt seats in rim can be deformed.
‹› The deformity could be so small that it cannot be seen.
‹› But even small deformities in the wheel bolt seats can prevent the wheel from fitting securely, so that it becomes loose.