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C200K W204 Knocking sound

Old Apr 27, 2014 | 03:34 AM
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johnmartin's Avatar
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c200K w204
C200K W204 Knocking sound

Hi Everyone,

Im experiencing a knocking sound on my c200k. The sound appears after the car has been driven, it is more noticeable once the car comes to a stop/idleing. Its not coming from the engine, its more towards the bottom of the compressor or where the transmission is married to the engine. The sound can be heard in the cabin passenger side (LHS). Has anyone had this problem? PLEASE HELP...

Thank you.
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Old Jun 25, 2015 | 04:12 PM
  #2  
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Mercedes-Benz C300 4Matic
I have this very same problem. Iv taken it into mercedes with a warrenty but they havent helped me out a bit. Their excuse was the issue was so minor they wont be able to get to it in time. Occasionally the knocking stops temporarily but will continue thoughout the drive.

Please let me know if you were able to fix the problem.
It drives me crazy!
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