Mercedes E Klasse Air Suspension Problem Resolved

Sounds like the suspension pump is malfunctioning. The ride height issue and error message are typical. Start by checking the suspension and compressor fuses. Also, inspect the wiring harness for damage or corrosion. A faulty suspension system can affect leveling.

Thanks for the quick reply. The fuses seem intact. I'll re-inspect the wiring harness for corrosion or damage. When you mention leveling, do you mean the self-leveling function? Is there a separate sensor or module that could be contributing? I'm wondering if the compressor failure is a symptom of another problem.

Yes, I mean the self-leveling function. A faulty sensor could cause the compressor to overwork or not activate, leading to premature failure. However, given the error codes and complete loss of function, it's likely the compressor or its wiring. I'd suggest getting it checked by someone with the right tools.

I appreciate the advice. I had it diagnosed. It was a corroded connector leading to the compressor. I cleaned the contacts, applied dielectric grease, and it's working again. The cost was 95€, as quoted. Thanks for pointing me in the right direction!