moonunit100
New Member
- Joined
- Jul 2, 2013
- Messages
- 14
- Car
- Cls350 petrol 2006
Hello! Ever since I got my 2006 cls350 it has had a whining noise from the engine. Using some flexible tube held to my ear like a stethoscope I located the source of the noise. 2 of the pulleys at the front of the engine that the serpentine belt goes round were the problem. One was just a guide pulley and I replaced it which quietened the noise down for a while but it has started to get loud again. The noise now comes solely from the lower right pulley which I believe is the air conditioner compressor.
The noise is constant, whether the air con is running or not and so I'm guessing the noise must be bearing noise from the pulley itself. Does anyone have any experience or knowledge of this? I'm guessing there is a clutch that means the compressor isn't running with the air con off, is that correct?
Does anyone know if the pulley can be replaced without having to disturb the rest of the air con system?
TThank in advance for any help.
The noise is constant, whether the air con is running or not and so I'm guessing the noise must be bearing noise from the pulley itself. Does anyone have any experience or knowledge of this? I'm guessing there is a clutch that means the compressor isn't running with the air con off, is that correct?
Does anyone know if the pulley can be replaced without having to disturb the rest of the air con system?
TThank in advance for any help.
