G class , E class , several W 124
It's coming from the front left wheel and it's driving me crazy.It appears when the car hit bumps.Do you think it's a problem?
I agree this sounds like a joint issue instead of Airmatic. But in my opinion it could also be the lower ball joint. I've had the lower ones replaced from two W211 cars where none of the upper control arm joints needed service (although other cars have had the latter).It may be a damaged or torn upper ball joint sealing boot on upper control arm. If this is the case, the joint needs to be replaced.