I recently purchased a 1997 528i. Last week, the ABS light came on and it would not shift out of 1st gear. I brought it back to the place I bought it and they said they put in a new part ($700). Yesterday, the same thing happened. I can drive it in manual mode, but I do not prefer to keep driving it that way. Does anyone have any suggestions on what could be wrong with it? How is the Transmission connected to the Anti-lock Brake System? Thanks!