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  #1  
Old 01-15-2011, 02:08 AM
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Question launch control

is launch control bad for the x5m or x6m? thinking about bringing it to a drag strip will it be ok to do like 5 runs using launch control?
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  #2  
Old 01-15-2011, 03:56 AM
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It is somewhat hard on the equipment, but not as bad as if there was a clutch. The manual says it won't let you do it during the break-in period, and that there is a cooling off time between runs. Both points suggest that BMW is aware of the increased stress on the vehicle.
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Old 01-16-2011, 12:46 AM
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I'm not exactly sure how much time you have to give between launches, but I don't think it's more than 5 minutes. When I tried doing it one stop sign after another it didn't work the second time. But a few minutes later it let me do it again. I'm sure you'll be fine doing it 5 times at the drags. But it's basically brake torquing, so the longer you're revving up and holding down the brakes, the harder it'll be on your torque converter. I usually just play with it at stop signs where I can hit the gas, wait for the checkered flag then go right away. Whereas at a stop light, you may be sitting there for several seconds.
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Old 01-16-2011, 04:39 AM
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Quote:
Originally Posted by jsc View Post
is launch control bad for the x5m or x6m? thinking about bringing it to a drag strip will it be ok to do like 5 runs using launch control?
Yep, it's should be okay but regardless it places extra stress on your vehicle. Remember, there's no such thing as a free lunch.
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Old 01-17-2011, 02:21 AM
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is it true that bmw can check how much you've done it?
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Old 01-17-2011, 02:26 AM
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They could with previous launch control-equipped M models, so I would expect they have retained that feature.
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Old 02-02-2011, 03:03 PM
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i heard that if you launch it more than 3 times it voids your warranty, but i have heard of so many people using it, does anyone know if this is true??
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Old 02-02-2011, 03:54 PM
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Quote:
Originally Posted by x5>Ferrari View Post
i heard that if you launch it more than 3 times it voids your warranty, but i have heard of so many people using it, does anyone know if this is true??
What does your warranty say?
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Old 02-02-2011, 05:23 PM
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Quote:
Originally Posted by x5>Ferrari View Post
i heard that if you launch it more than 3 times it voids your warranty, but i have heard of so many people using it, does anyone know if this is true??

That is BS
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Old 02-02-2011, 06:12 PM
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Don't press the M button, put it in sport, stand on the brake and gas. Then go. Seems to be just as fast without activating LC.
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