chris10895
Member
- Joined
- Sep 15, 2016
- Messages
- 12
- Reaction score
- 4
- Location
- Winchester UK
- Your Mercedes
- B180/2011/1.7L
I have a 2011 B Class petrol 1.7 with 59K on it which (more often than not but not always) rattles from somewhere low at the front … I'd say somewhere around the clutch housing area. Depressing/engaging the clutch or selecting a gear makes no difference.
It's a heavier sound than such as a slack timing chain (which is at the other end and is fine)
Once run for several miles so that it is well and truly hot, the noise disappears but whilst evident it is concerning. Clutch? Splines? Clutch plate shock absorber springs? Transmission (which was rebuilt after 30K due to worn bearings!!)? I can't think of anything that is driven from the left hand side of the engine except the clutch and transmission.
Anyone experienced the same and know if it's something to be concerned about? I can't imagine that it came out of the factory like that.
I might be able to record the sound and upload it as an audio file.
And, in case you wonder, neither of two dealers can or will offer a suggestion as to what it might be … but then they didn't diagnose that my cam-chain hydraulic tensioner was losing pressure … I worked that out myself and asked them to renew it. Timing chain noise disappeared.
It's a heavier sound than such as a slack timing chain (which is at the other end and is fine)
Once run for several miles so that it is well and truly hot, the noise disappears but whilst evident it is concerning. Clutch? Splines? Clutch plate shock absorber springs? Transmission (which was rebuilt after 30K due to worn bearings!!)? I can't think of anything that is driven from the left hand side of the engine except the clutch and transmission.
Anyone experienced the same and know if it's something to be concerned about? I can't imagine that it came out of the factory like that.
I might be able to record the sound and upload it as an audio file.
And, in case you wonder, neither of two dealers can or will offer a suggestion as to what it might be … but then they didn't diagnose that my cam-chain hydraulic tensioner was losing pressure … I worked that out myself and asked them to renew it. Timing chain noise disappeared.