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Discussion Starter · #1 ·
It's seems my launch control stopped working. I have done it before not many times but I can not get it to work. It just goes forward. Any ideas why it would stop. Also if I disconnect the battery will anything happen to require it to go to dealer. My idea is disconnect the battery to reset computer maybe resetting launch control
 

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Greetings,

have you searched on this topic? i posted a long thread w/ updates on this.

1) make sure you follow all LC procedures as depicted in this thread: http://www.m5board.com/vbulletin/e6...ch-control-illustrated-instructions-pics.html

2) also, make sure you car is in operating temps (drive around for 20 min or so), and make sure you are on a flat surface

3) make sure your car has no fault codes (may want a indy shop or dealer check and fix/clear accordingly by using a diagnostic computer). Depending on the fault code, the car will not allow LC b/c its "protecting the car" or something to that effect.

details in this thread: http://www.m5board.com/vbulletin/e60-m5-e61-m5-touring-discussion/172623-launch-control-issues.html

hope this helps
 

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Discussion Starter · #3 ·
I've tried that All the steps to do it

I guess This leaves the question if I unplug the battery to reset the computer will it thow any codes for disconnecting the battery
 
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