replaced strut on 2011 S550 car still not rising
Compressor coming on? check the relay and F32 40amp FUSE..Once you scan the car you may get fault codes. For example, you will get C1324-001 or C1325-001 which mean a communication or fault is present by the solenoid valves in assembly Y53 ( rear axle damping valve unit). It could also be that there is a discontinuity problem with any of the air suspensions components. This will difficult to track down without a scanner. A multimeter is a necessary tool too.
Search Mercedes-Benz S-Class Questions
Are you a UK consumer? CarGurus now has a discussion forum in the UK.
Mercedes-Benz S-Class Experts