Audi A4 Owners & Service Manuals

Audi A4: Drive Axle, Removing and Installing

Audi A4 (B9) 2016-2024 Service Manual / Chassis / Rear Suspension / Drive Axle / Drive Axle, Removing and Installing

  Caution

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

Mandatory Replacement Parts

  • Bolt - Outer CV Joint to Drive Axle
  • Clamp - CV Boot to Outer CV Joint
  • Clamp - CV Boot to Drive Axle
  • Bolts - Backing Plate to CV Boot
  • Circlip - Drive Axle

Removing

- Loosen the connection between the drive axle and wheel hub. Refer to → Chapter "Drive Axle Threaded Connection, Loosening and Tightening".

- Remove the expanding rivets -2-.

- Pull the wind deflector -1- slightly outward in the direction of the -arrow- and remove.

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Left Side of the Vehicle

- Remove the rear muffler. Refer to → Rep. Gr.26; Exhaust Pipes/Mufflers; Overview - Muffler.

- Remove the bolts -arrows- and remove the heat shield -1-.

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Continuation for All Vehicles

- Remove the bolts -arrows-, and carefully remove the drive axle.

  Note

Be careful not to damage the protective coating on the drive axle.

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Installing

Install in reverse order of removal and note the following:

- Tighten the threaded connection between the drive axle and wheel hub. Refer to → Chapter "Drive Axle Threaded Connection, Loosening and Tightening".

Tightening Specifications

  • Refer to → Chapter "Overview - Drive Axle"
  • Refer to → Fig. "Heat Shield - Tightening Specification"

Drive Axle Threaded Connection, Loosening and Tightening

Special tools and workshop equipment required

  • Torque Wrench 80-400Nm -VAG1576-
  • Socket AF 24 mm -T10361A-

  Caution

This procedure contains mandatory replaceable parts. Refer to component overview and parts catalog 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

- With vehicle still resting on its wheels, loosen the bolt -arrow- a maximum of 90º using -T10361A-, 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 180º.

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