Audi A4 Owners & Service Manuals

Audi A4: Drive Axle, Removing and Installing

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

Special tools and workshop equipment required

  • Torque Wrench 1332 40-200Nm -VAG1332-

  Caution

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

Mandatory Replacement Parts

  • Bolts - Joint to Transmission
  • Circlip - Triple Roller Star to Drive Axle
  • Bolt - Outer CV Joint to Drive Axle
  • Clamp - CV Boot to Outer CV Joint
  • Clamp - CV Boot to Drive Axle
  • Clamp - CV Boot to Joint

Removing

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

- Remove the front wheel. Refer to → Chapter "Wheels and Tires".

- Left drive axle: Remove the subframe shield. Refer to → Chapter "Subframe Shield, Removing and Installing".

- Right drive axle: Remove the subframe shield and move it to the side. Refer to → Chapter "Subframe Shield, Removing and Installing".

- Remove the nuts -1, 3- and remove the drive axle cover -2-.

A66-11638

- Remove the bolts -arrows- that connect the drive axle and flange shaft.

- Remove the drive axle, and do not damage the CV boot and the drive axle coating while doing so.

A40-10384

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 → Chapter "Overview - Subframe"
  • Refer to → Body Exterior; Rep. Gr.66; Wheel Housing Liner; Overview - Front Wheel Housing Liner.
  • Refer to → Chapter "Wheels and Tires"

Drive Axle Heat Shield, Removing and Installing

Left Drive Axle Heat Shield

A34-10397

Left Drive Axle Heat Shield

Right Drive Axle Heat Shield

A37-10841

Right Drive Axle Heat Shield

Drive Axle Threaded Connection, Loosening and Tightening

Special tools and workshop equipment required

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

Loosen the threaded connection between the drive 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.

A40-10419

Tighten the threaded connection between the drive 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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