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      04-18-2012, 04:03 PM   #46
amclint
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Drives: 335xi
Join Date: Apr 2011
Location: Varies

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Quote:
Originally Posted by mattsfeir View Post
Any updates on this? My car was doing this at the track this past weekend, now my 60's are in the 2.1-2.2 range instead of 1.7-1.8. Car drives fine on the street, checked the AT fluid level and it's fine, so I'm guessing transfer case also.

Car has seen less than 15 brake boost launches since I've had it, was stock when I bought it, so doubt prior owner had Procede launch control.
I have no issues at all from first, even doing a low 1.6x 60' which felt really violent had no slipping. 2nd gear I don't try anymore as it's just not worth the trouble to me to gain .1 on ET.

Are you saying this happens to you in 1st gear? I personally think my issue is related to the transfer case, but if you're seeing it in 1st then it could be low fluid in the transfer case or diffs. Quick test is to pull the fuse and make it RWD, then see if it does it and that will isolate it a bit more.
Appreciate 0