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				Rattle on startup- worry?
			 
 
			97 with only about 75k on it.  Noob owner. Recent acquisition, previous owner promised service records but can't "find" them.
 Runs like a top, soon to be doining fluid changes just to be sure they are done.
 
 About 50% of the time on cold startup there is a short "rattle" on startup.  Goes away running, warm start not present.  I've owned a few Mercedes and that sound usually means worn timing chain-possible catastrophic outcome.
 
 Don't know enough about mine to even know if a timing chain exists on these but I    would appreciate it if someone could tell me if the sound I am hearing is potentially problematic.
 
 Thanks.
 
 Jb
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