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In Reply to: M535i and L-JetTronic burning LOTS of Oil - Help posted by Steve on July 15, 2001 at 21:17:05:
Steve;
In my 30 years of working on cars, I have never seen such uniformly low readings. I think I saw in an earlier post the head gasket had been recently replaced.That could be the culprit! Head gaskets most frequently blow after a serious incident of overheating. If the head was not thoroughly checked and is slighly out of true, this could cause uniformly low readings, poor performance and oil consumption. This can happen with or without the mixing of oil and antifreeze.
A leak down test would be indicated and should help determine the problem. I wouldn't throw in the towel yet!
A friend just purchased a 1980 E12 M535i. We drove it back to KC from California non-stop. THe first day(1000 miles) went fine, then everything went down hill. We started burning oil, we were getting about 100 miles to a quart and by the end we had NO power when we fed it gas. Today, we pulled the air filter, the bottom 1/4 was saturated with oil, the throttle body had a puddle of oil in it where it connected to the black "tubing" which leads to the air filter box, and all 6 plugs were caked with deposits. We have not done a compression check yet, that's tomorrow. The previous owner (very reputable mechanic) told us it did not burn any oil before. We were told it could be vacuum...
Does anyone have any experience with this occurance?
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