Thanks, that's kinda what I thought. If this cylinder was leaking, is it likely that the other 4 cylinders (the ones that are much harder to get to) are also leaking or will leak soon?

Thanks,

J. M. van Swaay

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1994 E320 Wagon, 230,000 miles
1995 E320 Sedan, 106,000 miles
1994 E500 Sedan, 79,000 miles