[89Rustang]

Originally Posted by msane3

I liked your thread title so I'm going to just post my issue here...
I bought a 335xi in Feb. this year. A few weeks into ownership I notice a sort of surge bucking sometimes under heavy throttle. I didnt pay much attention to it. it slowly started happening more frequently and occasionally i would get the triad of 4x4, dsc...
then in a matter of one week it went from once a day to every time i would drive the car.

So here are the current symptoms:
As soon as I pull forward, the triad of lights come on.
no weird surging anymore and never heard any strange noises.
awd is disabled(obviously)

i have scanned for codes with autoenginuity and get
transmission 6hp tu - no response from module

DSC Premium - 5F3A Transfer Case - status: static fault, currently present, not currently present.

That is it for codes.

Background:
i checked the actuator worm gear and it was in good shape so i suspected an electrical failure within the actuator. I now replaced the actuator and problem is the same. I do have the alpina b3 flash. I have cleared codes and reset adaptations numerous times. I dont think the flash is responsible but im working on flashing back to stock to wipe the slate clean.

Any help, suggestions, leads are appreciated.

Sounds like a wheel speed sensor or ABS issue. I ended up taking mine to a shop due to time constraints.