For Wabco compressor to repair / renew air suspension compression.

For Audi A8, D3, 4E 2002-2010, 

Audi Q7 2005-2013

Audi A8 OEM Compressor part numbers: 4E0 616 005 - 4E0 616 007

Audi Q7 2005 OEM Compressor part numbers:4L0 698 007, 

7L0 698 853 ,7L8 616 006 ,7L8 616 007 

The main problem is a poor performance,noise, suspension error,car raising very slowly and failing to reach requested level.

Below errors will indicate compresor problem

01577 - Turn-Off due to Over-Temp: Upper Limit Exceeded

01400 - Suspension Level Control: Control Limit Not Reached

01772 - Signal from Level Control Pressure Sensor (G291): Implausible Signal