Replaced Serpentine and pulleys, tensionser, now what?
Thread Starter
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Joined: Jun 2013
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From: Parkland FLA
2006 CLK 350
Replaced Serpentine and pulleys, tensionser, now what?
Got a puzzle here for ya all!
I heard a vibration sound or rattle on acceleration or sometimes on a slight turn. The problem seemed to come from the front of engine, so I replaced all the pulleys, the tensioner and the belt tensioner.
Does not seem to have fixed the problem, as the sound is still there.
What next? Performance of engine and all seems normal, just the vibration leads to expectation of problems. Not a continuous sound but definitely on acceleration. Almost sounds like a heat deflector vibration or something?
I heard a vibration sound or rattle on acceleration or sometimes on a slight turn. The problem seemed to come from the front of engine, so I replaced all the pulleys, the tensioner and the belt tensioner.
Does not seem to have fixed the problem, as the sound is still there.
What next? Performance of engine and all seems normal, just the vibration leads to expectation of problems. Not a continuous sound but definitely on acceleration. Almost sounds like a heat deflector vibration or something?
Thread Starter
Junior Member
Joined: Jun 2013
Posts: 24
Likes: 0
From: Parkland FLA
2006 CLK 350
New developments
I have recognized now that the changing of the pulley's solved the sound of the pulley's aging/failing.
Unfortunately the sound of the vibration comes about when you first accelerate, as if maybe from the transmission?
Also, when the car is cold the sound is not there. Only after a couple of miles do you hear when you accelerate from a stop or from a slow travel.
I have also noticed that I cannot get this sound in neutral?
Glenn, Rodney, best guess??
Unfortunately the sound of the vibration comes about when you first accelerate, as if maybe from the transmission?
Also, when the car is cold the sound is not there. Only after a couple of miles do you hear when you accelerate from a stop or from a slow travel.
I have also noticed that I cannot get this sound in neutral?
Glenn, Rodney, best guess??
Thread Starter
Junior Member
Joined: Jun 2013
Posts: 24
Likes: 0
From: Parkland FLA
2006 CLK 350
The tinny clanging sound when accelerating was a rusted free exhaust pipe bracket, just past transmission. Had the bracket replaced, no more issue. Quite a challenge to find without jacking the car up. Thanks for your help!
