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W203 C320 Noise Under Car - Low Speeds - Video - Need Help!

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Old Jul 7, 2014 | 10:15 PM
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W203 C320 Noise Under Car - Low Speeds - Video - Need Help!
Hi Guys,

Today my car came across an issue at low speeds. It is a 2003 C320
I hear the noise coming from below the car and its a clicking/knocking noise.

I hear it at low speeds. When driving normally I dont hear it. But when I get ready to park I hear it parking and even when I am in park

Any ideas what it could be?

Please see the video:

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Old Jul 7, 2014 | 10:39 PM
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From: A.D., U.A.E
2000 (W202 C200) & 2000 (W202 C55)
Sounds like Exhaust loose or Exhaust insulation loose...!

try to jack the car & see careFULLY...

ZAYED,,
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Old Jul 8, 2014 | 07:02 AM
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2002 C320
I agree with cm60k. Sounds like the exhaust pipe is vibrating against something......or you are driving a very old diesel...lol
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Old Jul 9, 2014 | 12:53 AM
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From: Northwest Arkansas
2016 C450
shut the car off and bang on the cats with a rubber mallet. might be broken inside
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Old Aug 20, 2014 | 08:28 PM
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UPDATE:

Thanks for all the suggestions everyone!

It turned out to be the catalytic converters.
They were also causing misfires and problems accelerating.

I got both catalytic converters replaced and the car is running beautifully again!
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