In Reply to: E34 535i: Coolant leak from rear of head...gasket? posted by Brock Fraser on March 31, 2000 at 20:41:52:
: Got a problem, guys. My car has been consuming coolant for some time now, but at least a portion of it was falling to the ground, so I thought it was just a slow leak. Well, today, the slow leak turned into a fast spew. After letting the car cool, I filled it back up with coolant, drove it up on ramps, and watched where the leak came from once it got back up to temp. The coolant is escaping from the rear of head, but I really can't see it directly even with an inspection mirror. I can see, however, a trail that is either originating from the head gasket, or simply making contact with the gasket on it's trail downward. There is evidence of a bit of froth on the underside of the oil filler cap, and just a touch on the dipstick as well. I drained the oil, to see if coolant was visibly present, but it was not. We have an oil analysis place here in town, so I'm going to get it analyzed on Monday. I obviously suspect the head gasket, since I can't see any other tubes or hoses in the vicinity that would be causing the leak... but then again I would hate to pull the head only to learn that it was something small and stupid. Regardless of what it is, I can't even see it, so working on it would require some major dissasembly.
: I was hoping someone else had seen this and could lend some experience.
My 92 @161K miles is drinking coolant I add about 1 quart every 600 miles. Cold start I can smell the coolant coming from my tailpipe. My good independent saids it's the head gasket. He said to check the oil filler cap on the valve cover to see if it had a milky residue, if it did I was in deep Kimchee, so far no milky paste on the oil cap. Will keep you posted, fingers crossed!!