Quote:
Originally Posted by silverteam
This car was probably serviced by a real Mercedes mechanic and not by DIY. He corrected the crankcase breathing system. This is 50% the problems with the rear engine seal leak. On these older cars don't use synthetic oil before 1998 because these engines where not made for it.
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I run synthetic in all the cars.
M103 190E. Leak at timing chain cover. Common leak point regardless of oil type.
OM602 300D. No leaks.
M116 420SEL. No leaks.
OM617 300SD. Leaks at turbo drain, probably a few other places too. Common for leaks regardless of oil type.
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