buycobalt

Hello all,

I have just bought a 2003 SL55 and it had a squeaky belt. I have read all the posts about the supercharer chirp but this squeak is pretty constant and not just when pulling away.

The noise is coming from a belt located in the NSF of the engine bay (not the main timing belt) and seems to be running some kind of ancillary? Could someone confirm if this is the same problem as everyone else's? Im not mechanically minded but cant see this having anything to do with the supercharger?

Apologies for going over old ground but just want confirmation as to what this belt does and if its a common problem.

Many thanks

Paul

okbarnett

may be the SC pulley which is the cause of the SC chirp you hear about. It may be totally bad and squeeling all the time. I think it is that or another pulley.

IngenereAMG

This sounds more like some of the idler bearings may be on their way out.

alx

Spray a tiny amount of silicone on the inside of belt while running- I usually aim in the belt groove of one of the upper pulleys- does the squeak go away? If it does- it is the belt. If it does not- it is one of your pulleys.

jerri01.jaguar

can any 1tell me what that crackling sound is when u turn the steering wheel LFT and RT? I saw this posted before and 4got to rt it dn. I have a 2003 sl 55

cochituate

I had a windey noise, which sounded like a power steering pump going south. Took it to a great MB shop, and they discovered a chunk (Looked like a bite out of the pulley) of the pulley broke off. $1,400 later it solved the noise problem.