Compressor, with Adaptive Suspension Valve Block

Compressor, with Adaptive Suspension Valve Block

Special tools, testers and auxiliary items required

• Torque Wrench (V.A.G 1331)

• Vehicle Diagnostic Tester (VAS 5051B)

Removing

- Bleed the accumulator using the (VAS 5051B).

- Activate the vehicle lift mode and place the vehicle on the lifting platform. Refer to => [ Vehicle Lift Mode ] Description and Operation.

- Clean the area of the pressure-holding valves at the front air spring shock absorbers.

- Unscrew the air lines from the pressure-holding valves of the front air spring shock absorbers - 1 -.






- Clean the area of the pressure-holding valves at the rear air spring shock absorbers.

- Unscrew the air lines from the pressure-holding valves of the rear air spring shock absorbers - 1 -.






- Remove the right underbody trim.

- Remove the clamp - arrow - and disconnect the intake line - 1 -.






- Disconnect the harness connector - 1 - and - 2 - between the compressor and body.






- Disconnect the harness connector - 3 - from the adaptive suspension valve block (NX7).

- Remove the air line - 2 - from the compressor.






• Air line - 1 - remains installed.

- Remove the air lines - 1 - through - 5 - from the adaptive suspension valve block.






- Unscrew the bolts - arrows - and remove the compressor with the adaptive suspension valve block - 1 -.






Installing

Install in reverse order of removal. Note the following:

Front Air Line Installation Position





The air line has 2 markings.

Insert the air line until the front marking - arrow A - is completely covered by the union nut.

Only the second marking - arrow B - may still be visible on the air line.

Install in reverse order of removal. Note the following:

Rear Air Line Installation Position






The rear air line is covered with shrinkable tubing.

- Insert the air line until the end of the shrinkable tubing - 2 - is in contact with the union nut - 1 -.

The end of the shrinkable tubing may be a maximum of 2 mm in front of the union nut.

Connector assignment for the air lines at the adaptive suspension valve block.






1. Black, drain line

2. Blue, internal air line between the adaptive suspension valve block and the compressor

3. Yellow, air line toward the right rear air spring shock absorber

4. Green, air line toward the right front air spring shock absorber

5. Violet, air line toward the left front air spring shock absorber

6. Red, air line toward the left rear air spring shock absorber

7. Black, air line from the compressor to the accumulator


- Fill the accumulator using the (VAS 5051B). Refer to => [ Accumulator, Filling ] Procedures.

Tightening Specifications