1997 E320 oil leak
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Joined: Oct 2002
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1997 E320 oil leak
I bought a 1997 E320 several months ago, problem is a slight oil smell or a little smoke from the engine compartment after I turn off the engine. It's a very small oil leak , I'm sure, shows no loss of oil on the dipstick and I can't locate it. Anyone know where these engines usually leak or where I should look? There are 122,000 miles on it and it runs great. Thanks for any help! BIG RON
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Joined: Nov 2001
Posts: 789
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From: Henrico, Virginia
2014 ML350 4Matic
Before jumping to the head gasket, check the upper portion of the timing cover. The seal between the upper and lower sections often weeps right where it intersects the head gasket. I suggest checking this area; if you find an oil residue, clean the area thoroughly and observe. The head gasket can also leak, but the timing cover almost always develops a leak over time. These oil leaks are more of a nuisance than a problem. The front crankshaft seal is another candidate, and you can check that from underneath after removing the undertray. Often a leaky front seal will leave a "stripe" of oil droplets on the undertray, as the oil is slung off the vibration damper.
