The onboard computer in my '88 635csi always registers 0 MPH. Any of the computer functions that are not related to the speed of the car seem to work just fine. Could this be a broken sensor or wire someplace, or is something in the computer actually broken? Thanx, Hal Nadler '88 535i, 136k '88 635csi, 115k ------------------------------ End of bmw-digest V9 #1762 **************************