Twelve-Point Without Ribs Between Drive Axle and Wheel Hub, Loosening and Tightening

Twelve-Point Bolt with Ribs Between Drive Axle and Wheel Hub, Loosening and Tightening

Special Tools and Workshop Equipment Required:
- Socket XZN 24 -T10361-
- Angle Wrench -V.A.G 1756-

Characteristic Between a Twelve-Point Bolt with Ribs and a Twelve-Point Bolt without Ribs






The contact surfaces -arrow A- amd -arrow B- are different on the two-point bolts.

I - Twelve point bolt with ribs -arrow A-.
II - Twelve point bolt withouth ribs -arrow B-.

Vehicles without a drive axle must not be moved, otherwise the wheel bearing will be damaged. If vehicle does have to be moved, always not the following points:
- Install an outer joint in place of the drive axle.
- Tighten outer joint to 120 Nm.

Loosening

- With vehicle still resting on wheels, loosen the twelve-point bolt -arrow- maximum 90°, otherwise, wheel bearing will get damaged.

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

- Apply the brakes (second mechanic required).






- Remove 12-point bolt -arrow-.

NOTE:
Before Installing, clean the threads in the CV joint with a tap.

Tightening

- Replace 12-point bolt.

NOTE:
Wheels must not yet touch the ground to tighten the drive axle, wheel bearing may otherwise be damaged.

- Apply the brakes (second mechanic required). Tighten 12-point bolt to 200 Nm.

- Lower the vehicle onto its wheels.

- Tighten 12-point bolt an additional 180°.