Hex Bolt Between Drive Axle And Wheel Hub (Loosening And Tightening)

Special tools and workshop equipment required

Loosening

Fig 1: Identifying Collar Bolt For Left/Right Drive Axle

Courtesy of AUDI OF AMERICA, LLC

-- With vehicle still standing on its wheels, loosen bolt a maximum of 90°, otherwise wheel bearing will be pre-damaged.

-- Raise vehicle enough that wheels hang freely.

-- Operate brake (second mechanic required).

-- Remove bolt -2-.

Tightening

-- Replace bolt -2-.

NOTE:

Before installing, clean the threads in the constant velocity joint with a tap.

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

-- Operate brake (second mechanic required).

-- Tighten bolt to 200 Nm.

-- Lower the vehicle onto its wheels.

-- Tighten bolt an additional 180°.