ok303

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:

cm60k

Sounds like Exhaust loose or Exhaust insulation loose...!

try to jack the car & see careFULLY...

ZAYED,,

Poppy1

I agree with cm60k. Sounds like the exhaust pipe is vibrating against something......or you are driving a very old diesel...lol

Holmes5518

shut the car off and bang on the cats with a rubber mallet. might be broken inside

ok303

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!