Review on Suspension Compressor Replacement Mercedes Benz 1643201204 by Terry Wilson

The pump is quiet and seems to work well to keep the vehicle level. The problem is the sound it makes when releasing a small amount of air. It literally sounds like a city bus stopping multiple times a day. It's confusing at times, but since it works, I'll leave it at that for now. I've seen someone mention the possibility of a 'silencer' for the pump, but haven't found any good descriptions of where to get one or how it would work. I saved a decent amount of money compared to the OEM, but I'm not entirely happy with the purchase.