I also have a 95 e320 sedan and the engine oil leaks. The oil started leaking about three years ago. At that time it leaked about one drop a night. I'm pretty sure it's the head gasket issue since two mechanics have told me that. At that time I decided to live with the problem. However, now with almost 150k, it leaks a bit more. I typically drive about 2000 miles a month (if that matters) and I need to add about a quart a month. I have a feeling this problem is gonna get worse. So my $2000 question (that was one quote that I got before) is at what point is it necessary to replace the head gasket? Thanks in advance.