New member: AC vibration?
Thread Starter
Junior Member
Joined: Jun 2019
Posts: 26
Likes: 1
2009 E350
New member: AC vibration?
New to this forum as I've had little to no issues with my new to me e350 (2009). Since it's now the summer months I notice my car has a heavy vibration when the air conditioning is on. The fans in the front of the car are also on at full speed even when AC is on low. Operating temp is normal but this momentum vibrating feeling is getting annoying. Any suggestions? I have 180k
Super Member
Joined: Aug 2004
Posts: 545
Likes: 87
From: Southern California
Could be the bearing on the AC compressor is going bad. If so, it would mean replacing the whole compressor as most shops will not just replace the bearing.
It may also be the engine mounts. W211 loves to eat engine mounts. At that mileage I would think anything connected to the belt would be due for replacement. Water pump, pulleys, tensioner, AC compressor, the belt itself, power steering (if it is not electric).
It may also be the engine mounts. W211 loves to eat engine mounts. At that mileage I would think anything connected to the belt would be due for replacement. Water pump, pulleys, tensioner, AC compressor, the belt itself, power steering (if it is not electric).
Thread Starter
Junior Member
Joined: Jun 2019
Posts: 26
Likes: 1
2009 E350
Originally Posted by F1Fan
Could be the bearing on the AC compressor is going bad. If so, it would mean replacing the whole compressor as most shops will not just replace the bearing.
It may also be the engine mounts. W211 loves to eat engine mounts. At that mileage I would think anything connected to the belt would be due for replacement. Water pump, pulleys, tensioner, AC compressor, the belt itself, power steering (if it is not electric).
It may also be the engine mounts. W211 loves to eat engine mounts. At that mileage I would think anything connected to the belt would be due for replacement. Water pump, pulleys, tensioner, AC compressor, the belt itself, power steering (if it is not electric).
I thought bad mounts would have vibration a lot??
MBWorld Fanatic!
Joined: May 2015
Posts: 4,037
Likes: 1,011
From: Miami, FL
2003 CL 600
If you've never changed the mounts, they are probably bad. Start there anyway, cheap and good to do even if it's not the root cause of your issue, but i'd bet it probably is.
