Vibrating sound when AC is on. What is it? - PeachParts Mercedes-Benz Forum

david s poole · #1 08-28-2007, 10:16 AM

still think your noise is motor mounts seeing as the compressor is mounted at the bottom on the left side.one good way to check is to get a floor jack under the oil pan[use pce of 2 by 4],turn on engine and a/c to where you feel vibration and then jack the engine up a little and see if noise changes.

Ocean View · #2 08-28-2007, 02:01 PM

Quote:

Originally Posted by david s poole

still think your noise is motor mounts seeing as the compressor is mounted at the bottom on the left side.one good way to check is to get a floor jack under the oil pan[use pce of 2 by 4],turn on engine and a/c to where you feel vibration and then jack the engine up a little and see if noise changes.

Indy said motor mounts are in good condition.
He said they look almost new.