Wheel, Changing and Mounting

Wheel, Changing and Mounting

The secure seating of the wheel bolts and the wheels is only ensured if the instructions and checks below are followed.

• After removing or installing one or multiple tires, the tire pressure monitoring system must be re-calibrated for vehicles with tire pressure monitoring system, refer to => [ Tire Pressure Monitoring System ] Description and Operation.

- Make sure the contact surfaces - arrows - on the brake disc are free from corrosion and dirt.






Clean the contact surfaces for example with a pneumatic brush grinder set (VAS 6446).

- Make sure the contact surfaces - arrow - on the brake disc center seat are free of corrosion and dirt.






- Make sure the contact surface - arrow - on the wheel inner side (rim) as well as the central seat in the rim is free of corrosion and dirt.






- The spherical caps * in the wheel bolt openings and the wheel bolt threads must likewise be free of corrosion, dirt, oil or grease.

* The spherical cap is the curved surface of a section of a sphere.

- Check whether the wheel bolts can be easily screwed in by hand. The threads of the wheel bolts must not touch the holes in the brake disc - arrow -.






If the thread of the wheel bolt touches the hole - arrow -, turn the brake disc relative to the wheel accordingly.

Remove any Dirt or Corrosion if Necessary:

• Oil or grease from the contact surfaces.

• Thread inside the wheel hub.

• Wheel bolt threads.

Heavily corroded, difficult to turn or damaged wheel bolts must be replaced.

Wheel Mounting

- Coat the wheel centering seat. Refer to => [ Wheel Centering Seat, Protecting against Corrosion ] Wheel Centering Seat, Protecting against Corrosion.






1. When mounting a wheel, tighten all wheel bolts uniformly by hand.

2. Tighten the wheel bolts diagonally to approximately 30 Nm.

3. Lower the vehicle to the ground and tighten all the wheel bolts diagonally to the tightening specification. Refer to => [ Wheel Bolt Tightening Specification ] Specifications.


Do not use an impact wrench to install the wheel bolts.