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Old 30-01-2017, 11:40 PM   #1
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W212 E63 AMG suspension noise from OS?

My E63 is currently at the dealer for investigation of a light knocking/tapping noise that is most noticeable when the car is cold. So far the arb drop links have been changed, as have the lower suspension arms (thankfully under warranty), but the problem remains. No obvious problems visually - what else is it likely to be? A problem with the strut? Anti roll bar bushes? Top mounts?. The car has done 23k and is a 2013 model.

Any suggestions?

Thanks,
Alex
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Old 31-01-2017, 02:33 PM   #2
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Have the ball joints inspected carefully. Same symptoms on mine was a lower ball joint.
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Old 31-01-2017, 02:37 PM   #3
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We had a similar problem at a similar mileage - both front top mounts believe or not.
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Old 31-01-2017, 08:59 PM   #4
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Quote:
Originally Posted by HB View Post
We had a similar problem at a similar mileage - both front top mounts believe or not.
That's interesting. I did have to have one of the top mounts greased as it was making a squeeking noise as lock was wound on or off. That was also on the driver's side that the knocking/tapping appears to be coming from. Is there an easy way to check the top mounts?

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Old 31-01-2017, 09:00 PM   #5
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surprise, surprise, I got the car back without any diagnosis - no fault found, and heard the noisie within a couple of hundred metres driving away.

In fairness to the dealer, they did invite me to bring it back if I could find a way to make the problem apparent. We'll have to see if it becomes more apparent. The nature of the noise is a light knocking noise when the wheel is in bump/droop. ARB drop links and lower susupension arms were replaced under warranty due to deterioration (which is suprising in a just three year old car). MB made a 70% contribution to the warranty company, which is interesting. I wonder if there is a known issue with the inboard bushes on the lower suspension arms?.

Admittedly I am being very fussy, but I can definately hear something and I don't think suspension should knock/tap over bumps.

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Alex
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