Air release sound
Thread Starter
Newbie
Joined: Jun 2018
Posts: 2
Likes: 1
s350 2005
Air release sound
I have a 2005 S350...lately Ive noticed a strange noise. I hear a humming noise while driving at moderate speeds and the sound builds up while Im driving. Once I slow down or stop completely, the humming sound stops and I hear a very noticeable air release sound from the front of the car. It sounds like the air brakes on a truck. This started to happen after I had my right front suspension strut replaced. I have no warning messages, the air magic suspension seems to work absolutely fine otherwise. ANy idea what this is?
MBWorld Fanatic!
Joined: Jan 2008
Posts: 6,151
Likes: 533
Mercedes
The humming is your airmatic pump filling the system after the air is being released . Clearly there is some problem why the air is releasing when you stop , if the issue started right after you changed the strut either something wrong was done during install or the part is defective
