@ mike, I had the problem with sensor before I brought my vehicle to BMW dealer he reset system via idrive then it came back before installing jb4.
@bmw-nc, I guess that could be traction controll light but I am deffinetly not loosing traction at all this happens doing a sprint and I do have xmodel as well do you guys usually disable traction controll??
Thanks for the quick responses and input I love this forum!!