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Mercedes-Benz
300TE
7

Engine Oil and Coolant Leaks Resulting in Fulid Intermix on Mercedes-Benz 300TE

Problem Description and Possible Solution

Internal and External engine oil & coolant leaks can develop from the head gasket and/or timing cover gasket; these leaks should be repaired before the engine oil and coolant intermix which can result in severe engine damage.

Problem Data
RepairPal Verified
Average mileage: 185,000 (170,000–200,000)
4 model years affected: 1990, 1991, 1992, 1993
7 people reported this problem
Comments
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Engine oil turned milky, which of course means engine cooling water is mixing with oil. Obviously the head gasket is gone pushing oil into the cooling system. I went to NAPA, for $40.00 bucks on the advice of a guy behind the counter said give a head gasket sealer a try. So, what the hell. I forked over two twenties, dumped the stuff in (not even cleaning out the milky scum in the expansion tank) and - hey, its been working for over a year now.