Knocking noise from underneath when going over small bumps

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ps-master - 23 Apr 2005 19:18 GMT

I have just purchased an E220 Cdi (1999) and I'm hearing knocking noises
when I go over the smallest of bumps. It seems to be coming more from the
passenger side, and from the front. I've heard this noise many times when
I've got into a neglected minicab.

Has anyone any ideas on what it could be?

Thanking you in advance.

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Peter W Peternouschek - 23 Apr 2005 19:49 GMT

Check the exhaust system rubber grommets/mounts. I had a similar issue on my
Sl320. One of the rubber supports at the cartalytic converter was gone and
the other one was stretched allowing the pipe to move around quite a bit. I
replaced them all and problem is gone.

Peter

> I have just purchased an E220 Cdi (1999) and I'm hearing knocking noises
> when I go over the smallest of bumps. It seems to be coming more from the
[quoted text clipped - 4 lines]
>
> Thanking you in advance.

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ps-master - 24 Apr 2005 09:20 GMT

Thanks Peter. . I'll go to an exhause place today and see if they can see
anyting.

Fingers crossed!

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ps-master - 24 Apr 2005 21:04 GMT

Unfortunately it wasn't the exhaust mountings. Took it to Kwik-Fit who
lifted it up and wabbled the exhaust about, and no noises.

Never mind. . .off to a garage I think.

Thanks

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Martin Joseph - 24 Apr 2005 19:51 GMT

> I have just purchased an E220 Cdi (1999) and I'm hearing knocking noises
> when I go over the smallest of bumps. It seems to be coming more from the
> passenger side, and from the front. I've heard this noise many times when
> I've got into a neglected minicab.
>
> Has anyone any ideas on what it could be?

Ball Joints?

Marty

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ps-master - 27 Apr 2005 10:23 GMT

Just got the car back from the Mercedes Garage. . ."Anti Roll Bar Bushes"
£15 parts (both sides), £115 labour!

Thanks Everyone

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