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2006 s55 has a slight diesel sound coming from engine!

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Old 04-23-2013, 11:10 AM
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Mercedes s55 amg
2006 s55 has a slight diesel sound coming from engine!

Slight rattling noise coming from engine and not the injectors because I hear them also. Do all s55 have this noise or there a problem! It's not loud just noticeable?
Old 04-23-2013, 02:06 PM
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2005 Mercedes S600, 2004 Mercedes E500 4-Matic, 2002 Mercedes C32 AMG, 2001 Trans-Am WS-6
Originally Posted by Eric_pcars
Slight rattling noise coming from engine and not the injectors because I hear them also. Do all s55 have this noise or there a problem! It's not loud just noticeable?
One of the pulley bearings going bad? This happened with my C32 supercharger pulley when I had it.
Old 04-23-2013, 11:36 PM
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thanks for the reply!I fiddled with it more today and it goes away when i turn the a/c on!
Old 04-29-2013, 11:32 AM
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2004 s55
Mine does the same, I'm not sure witch pulley is bad but as long as its under a load, (ie) ac or heat, I think it's the AC compressor..

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