Is it head gasket time

[2Benzs4BP]

I have a 92 300e, 148,000 miles.............I have started noticing oil on the ground everyday and requiring a quart every 750 miles depending on the driving mode........ Have checked and changed valve cover gasket..... This morning I added a quart because it was low and to my surprise the expansion tank looked funny...... After looking at it it seemed to look as if oil was in the antifreeze.........But checking the dip stick it looks fine

[ctaylor738]

Oil in the coolant is a classic 124 problem and there was a post on it a couple of weeks ago that explains it in detail. I offered to host a DIY session in my garage, but the problem car was in CT.

You are at risk driving the car because the oil eats away at the cooling system hoses.

[bricksb]

I finally replaced mine @ 117,000 miles. Got tired of cleaning the mess on the garage floor and driveway. Always forget to place that darn drip pan in the right place. Anyway, I bravely took the cylinder head off, had it machined at the local machine shop ($50) and replaced all accessible seals and gaskets with new ones. Recommend you buy (if DIY) the Cylinder Head Gasket Set - it's everything you need in one package. Warning! Just make absolutely sure to match the OLD and the NEW gaskets. I learned the hard way. The Cyl Hd Gasket I got was for an older model engine (stocking error!) and found out after I had to tear the engine down again. The new gasket looked perfectly the same except for the piston bore holes which were smaller by 8th of an inch - which kept the pistons from reaching their max travel. Anyway, it's also a good time to replace your belt at this time (if you have not done so). Good luck.