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Old 01-28-2009, 04:21 PM
Waveho Waveho is offline
Officially Welcomed to the 'Fest
Location: Shenandoah Valley, Virginia
Join Date: Jul 2006
Posts: 3,362
Mein Auto: '07 335xi 6MT 4door
I started this thread some time ago while encountering this problem:

This topic has come up many times and this is the breakdown:

If you have DSC, you have speed sensors in each wheel and a steering angle sensor I think in the front left wheel (not sure). If you have ASC, then you have a speed sensor in your front right wheel and rear left wheel, and no steering angle sensor.

Problem could be in any of these sensors, but generally problems have come up with the ASC especially, in the front right; I believe this may be because the front get more abuse than the rear, but that's just guessing. The other possibility is that you have a bad ABS control module, which is pricier to fix, but can be repaired by modulemasters for about $300, but is not always repairable. Rule out the speed sensor first.

Read my description (in above link) on how I determined (rightly) that it was for me the speed sensor (also called ABS impulse generator/impulse sensor, depending on who you ask). Good luck!

'07 335xi 6-spd 4dr, Montego blue
'98 540i 6-spd Sport, Jet Black II(sold)
'92 325i 5-spd 4dr, burgundy(sold)
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