Mercedes-Benz W164 Airmatic compressor does not lift the car
My W164 Airmatic compressor does not lift the car, what could be the fault?
Typical causes are poor contact in the compressor connector, damp desiccant or a clogged filter, a stuck pressure relief valve and a loose compressor relay. The fault is located with the Mercedes Star diagnostic tool.
Why does the W164 air suspension not lift in freezing weather?
Moisture has got into the system. The compressor desiccant (silica) and air filter should be serviced or replaced. Water can freeze in the valves and keep them slightly open, so air leaks out. If the fault continues after servicing, suspect the pressure release valve.
My W164 air suspension does not lift although the compressor runs, fault codes 5506 and 5503?
If the minimum pressure is not reached in the test, the compressor is only one possible cause. Water can rust the valves, in which case the valve block must be replaced. Diagnosis is based on pressure sensor data, so check the sensors too. Let a workshop do the work.