Air Supply Unit Bracket

Air Supply Unit Bracket

Special tools, testers and auxiliary items required

• Torque Wrench (V.A.G 1783)

• Open End Spanner Insert AF 10 (V.A.G 1783/1)

Removing






• The air supply unit is bolted to the bracket on the underbody (spare wheel well).

- Start the program on the vehicle diagnostic tester in "Guided Functions" and bleed the system.

- Turn off ignition.

- Remove the nuts - arrows -.

- Remove the stone chip protective molding - 1 -.

• Make sure no dirt gets into the pressure air system.

• Clean the area before removing connecting pieces for the air pipe lines or other components of the pressured air system.

• Seal off any open air lines and connections in the pressure system immediately with plugs or cover them.

- Remove the connectors - 2 and 4 - from the bracket and disconnect them.






- Loosen the clamp - 5 - and remove the intake line.

- Remove the air line - 3 - from the bracket.

- Remove the nuts - 1 - and bolts - arrows -.

- Remove the bracket and air supply unit - 5 -.

Installing

Install in reverse order of removal. Note the following:

• The vehicle may be removed from the vehicle hoist only after the air springs have been filled again. Refer to => [ Raising and Lowering ] Description and Operation.

• Make sure the positioning pin on the air spring is installed correctly inside the body before filling the air suspension system. The air spring must be locked secure inside the wheel bearing housing at the same time. Refer to => [ Air Spring Installed Position ] Air Spring Overview.

Tightening specifications, refer to => [ Air Supply Unit Overview ] Air Supply Unit Overview.

Tightening specifications, refer to => [ Air Line Connecting Pieces Tightening Specification ] Air Line Connecting Pieces Tightening Specification.

Tightening specification for the nuts on the stone chip protection. Refer to => [ Stone Chip Protection Tightening Specification ] Air Supply Unit Overview.

- Start the program on the vehicle diagnostic tester in "Guided Functions" and bleed the system.

If the air supply unit was replaced, then the level control system compressor relay (J403) must also be replaced.