Drive Axle Threaded Connection, Loosening And Tightening

WARNING: This page is about a different car, the 2021 Audi S4 and 2021 Audi A4 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

Special tools and workshop equipment required

Torque Wrench 80-400Nm :VAG1576
Socket AF 24 mm :T10361A for 12-point bolt
or 19 mm inner hex socket, commercially available

CAUTION:

This procedure contains mandatory replaceable parts. Refer to component overview and parts information prior to starting procedure.

Mandatory Replacement Parts

Bolt - Outer CV Joint to Drive Axle

Loosen the Threaded Connection between the Drive Axle/Stub Axle and Wheel Hub

Fig 1: Drive Axle Hex Bolt

Courtesy of AUDI OF AMERICA, LLC

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

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

-- Apply the brakes (a second technician required).

-- Remove the bolt.

Tighten the Threaded Connection between the Drive Axle/Stub Axle and Wheel Hub

NOTE:

Replace bolt after removal.

Before installing, clean the threads in the CV joint/stub axle with a thread tap.

Wheels must not yet touch the ground when tightening the drive axle/stub shaft or the wheel bearing can be damaged.

-- Apply the brakes (a second technician required).

-- Tighten the bolt to 200 Nm.

-- Set the vehicle on its wheels.

-- Tighten the bolt an additional 180°.