e320 loud knocking sound - Mercedes-Benz Forum

 
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post #1 of 4 (permalink) Old 04-14-2010, 08:04 AM Thread Starter
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Post e320 loud knocking sound

Hi there,
I have a question for you.
Recently I purchased Mercedes Benz 2001 E320 wagon, AWD and the engine started making knocking noise and it's coming from the engine and transmission bell.
Do you have any idea what it might be?

Thank You in advance.

Last edited by olegss; 04-14-2010 at 09:02 AM.
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post #2 of 4 (permalink) Old 04-14-2010, 08:40 AM
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Vehicle: 99 E430, 01 E430 Sport, 00 SL500
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This is probably the 5th time I heard of the similar noise/knocking sound complaint on the E in one week. Many people said that it's the "$500 rattling cat" (catalytic converter). There are 2 of them under the car.
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post #3 of 4 (permalink) Old 04-14-2010, 09:45 AM Thread Starter
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Thanks for response

I got under the car and the sound comes from the transmission bell. I heard people saying that it might be a flywheel? What are your thoughts>

Thanks Again.
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post #4 of 4 (permalink) Old 04-14-2010, 11:21 AM
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Was it some clunking noise, or rattling, or rhythmic, or non-rhythmic?
Go here
http://www.benzworld.org/forums/
Scroll down to the forum for your car model. Read the "stickies" or post your question there. Members owning the same car may help you.
I'd use a digital camera, put it on video mode, record the noise, post on youtube, provide the link with the question. All that will help, too.

Last edited by mbvis; 04-14-2010 at 11:23 AM.
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