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Can anyone tell me at what intervals I should be thinking of changing the timming chain and or guides on my 82 euro 500 sl, it has done 119,000 Miles and I don't rekon it has had any work in the past.<br> <br> Regards <br> <br> Damian
 

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Damian,<br> <br> Following from MB-CA for your information:-<br> <br> Gas Engines - Expect to replace the valve seals at 125-150K miles on gas engines. First symptom is increased oil use. Head jobs are typical at 180-200K miles. Bottom ends should last at least 250K miles as long as oil is changed regularly. Expect oil leak problems on the 190E 2.6/300E/E320 engine at the head gasket, front timing cover and valve cover gasket. Timing chains and tensioners (and maybe rails) should be replaced at 100K miles. Owners of 91 or older 4.2 liter V-8s should especially heed this advice or your engine could be trashed. Big $$$$ - MERCEDES-BENZ CLUB OF AMERICA-
 
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