Axle Nut: Service and Repair

Threaded Connection Between Driveshaft and Wheel Hub, Loosening and Tightening

Special tools, testers and auxiliary items required

• Socket XZN 24 (T10361)

• Angle wrench (V.A.G 1756)

The wheel bearing must not be under a load while the driveshaft threaded connection on the wheel side is loose.

If the wheel bearings are under the load of the vehicle weight, the wheel bearing will be damaged. This reduces the service life of the wheel bearings.

The driveshaft bolt may be loosened maximum 90° when the vehicle is standing on its wheels.

Vehicles without a driveshaft must not be moved, otherwise the wheel bearing will be damaged. If a vehicle must be moved, be sure to note the following:

• Install an outer joint in place of the driveshaft.

• Tighten the outer joint to 120 Nm.

Perform The Following:

Loosening The 12-Point Bolt

- With vehicle still resting on wheels, loosen 12-point bolt with Socket AF 24 (T10361) maximum 90°, otherwise, wheel bearing will be damaged.

- Lift the vehicle just enough so that the wheels are hanging free.

- Press the brake pedal. A second technician will be needed.

- Remove 12-point bolt - arrow -.






12-Point Bolt, Fastening

- Replace the twelve-point bolt.

• The wheels must not be touching the ground when tightening the driveshaft. Otherwise, wheel bearing may be pre-damaged.

- Press the brake pedal. A second technician will be needed.

- Tighten 12-point bolt to 200 Nm.

- Lower the vehicle onto its wheels.

- Tighten 12-point bolt an additional 180°.