Wheel Bearing In Control Position, Lifting Vehicles With Air Suspension

Wheel Bearing in Control Position, Lifting Vehicles with Air Suspension

Special tools, testers and auxiliary items required

• Engine-/Gearbox Jack (V.A.G 1383 A)

• Torque Wrench (V.A.G 1783)

• Wheel Hub Support (T10149)

• Insert Tool (T10212)

Bonded rubber bushings can only be turned to a limited extent.

Before axle components with bonded rubber bushings are tightened, they have to be brought to a position which matches the position when the vehicle is being operated (control position).

Otherwise the rubber mounting will be stressed, resulting in a reduced service life.

This position can be simulated on the lifting platform by raising the wheel bearing housing using (V.A.G 1383 A) and (T10149).

Requirement

• Engine must be installed.

- Place vehicle on hoist. Refer to => [ Positioning Vehicle on Hoist and Wheels ] Positioning Vehicle on Hoist and Wheels.

- Perform system venting using vehicle diagnostic tester. Refer to => [ System, Venting or Filling ] System, Venting or Filling.

- Clean area around wiring connection.

- Remove connector piece - 1 - at residual pressure retaining valve - 2 - using (T10212). Air escapes then.






- Seal both connections. Make sure that no dust particles enter connections.

- Turn the wheel hub until one of the holes for the wheel bolts is on top.

- Install (T10149) with wheel bolt.






- Insert (T10149) into (V.A.G 1383 A) and press wheel bearing housing far enough upward until control position, dimension - a -, is obtained.

Control Position

• Dimension - a - for vehicles with air suspension 465 mm

• Do not lift or lower vehicle when the (V.A.G 1383 A) stands below the vehicle.

• Do not leave (V.A.G 1383 A) below vehicle any longer than necessary.

Working after Adjusting Control Position

- Tighten respective bolts/nuts.

- Lower wheel bearing housing.

- Remove (V.A.G 1383 A) under the vehicle.

- Remove (T10149).

- Tighten the connecting piece - 1 - at the residual pressure retaining valve - 2 - to 10 Nm using a (T10212).






- Install the wheel and tighten the wheel bolts.

- Air suspension system, filling. Refer to => [ System, Venting or Filling ] System, Venting or Filling.