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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Tracking, Autocrossing, Dragstrip, Driving Techniques > LSD and Donuts



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      07-10-2012, 05:34 PM   #1
kenneth
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LSD and Donuts

For those who have LSDs, are you able to do skidpad exercises, donuts and figure 8s?

Just checking, cos I have a real hard time doing those, it's as if the traction/ESP is never completely off even if you turn all off. Other drivers watching me mentioned they heard the brakes pumping, so do I, but not sure whether that is a figment of imagination.

Anybody?
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      07-10-2012, 06:11 PM   #2
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Originally Posted by kenneth View Post
For those who have LSDs, are you able to do skidpad exercises, donuts and figure 8s?

Just checking, cos I have a real hard time doing those, it's as if the traction/ESP is never completely off even if you turn all off. Other drivers watching me mentioned they heard the brakes pumping, so do I, but not sure whether that is a figment of imagination.

Anybody?
If there is a fuse which powers the DSC/ABS system, pull it and retry these maneuvers. I'd almost give up the ABS to avoid these problems.
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      07-10-2012, 09:52 PM   #3
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The car has a two stage dsc, are you seeing dsc on your dash or the triangle with the exclamation mark?
If you see dsc, keep holding the button until the triangle appears.
My $.02
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      07-10-2012, 10:00 PM   #4
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The car has a two stage dsc, are you seeing dsc on your dash or the triangle with the exclamation mark?
If you see dsc, keep holding the button until the triangle appears.
My $.02
That's not it. I indeed turn everything off (5 seconds)
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      07-10-2012, 10:10 PM   #5
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That's not it. I indeed turn everything off (5 seconds)
Here's a thread with the fuse panel diagram - try pulling the ABS/DSC fuses and see what happens. See if it helps your computer-intervention problems.

Worst case, you put them back.

Haha oops I forgot to cut/paste the thread with the fuse diagram. Thanks BFLY.

Last edited by DallasBoosted; 07-10-2012 at 10:37 PM.
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      07-10-2012, 10:35 PM   #6
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Thought it might have been that simple. Too bad it's not!
This thread has fuse diagrams which should help.
http://www.e90post.com/forums/showthread.php?t=576588
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      07-11-2012, 04:41 PM   #7
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thats weird mine turn completely off. The only car i know that doesn't turn off all the way is Mercedes benz
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      07-11-2012, 05:35 PM   #8
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thats weird mine turn completely off. The only car i know that doesn't turn off all the way is Mercedes benz
How are you sure they are completely off? Are you able to do nice donuts or figure 8s?
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      07-11-2012, 07:51 PM   #9
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yessir Maybe your not revving it high enough. When i had my lsd installed the 1st thing i did was print an enormous number eleven in the road. I'm assuming your dash says DSC OFF. One other way I know mine can turn off completly is that I had it dynoed. You cant dyno a car with any traction or dsc on.


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How are you sure they are completely off? Are you able to do nice donuts or figure 8s?
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