Smoke At Startup - BMW Forum - BimmerWerkz.com
1,6,7,8 - Series and Mini Cooper General Chat related to models that do not fit into particular categories above. Please try to put your discussion in more appropriate sections. This section does cover the 1 Series, MINI Cooper and 8-Series vehicles: BMW 830i, BMW 840Ci, BMW 850i, BMW 850Ci, BMW 850CSi, M8, Alpina B12, BMW CS Concept and others.

 
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#1 (permalink) Old 10-31-2004, 08:40 PM
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I have a 98 740IL with 111,500 miles on it and it just started smoking real bad at startup. It will not do it after the first 10 to 15 seconds and doesn't seem to burn any oil. I thought I might have a bad plug but replaced them all and it still does it. It also just started idleing a little rough. Just slightly though. Does anybody know what may be the problem??
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#2 (permalink) Old 11-02-2004, 02:28 PM
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///Matt is an unknown quantity at this point
Sounds like you may have a cracked/worn head gasket. At statrup the gasket expands from the heat which would cause the leak to stop. Check with your mechanic and look at any fault codes that it sends out. Good luck...
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