NHTSA Complaint #11030378 — 2006 BMW Z4

STEERING IS EXTREMELY NOTCHY AND UNPREDICTABLE, ESPECIALLY ON HOT DAYS. WHEN IN MOTION, THE STEERING WHEEL REQUIRES FORCE TO TURN, AND SOMETIMES WILL TURN SLIGHTLY WITHOUT DRIVER INPUT. IT APPEARS THAT THE POWER ASSIST STEERING IS ACTUATING WHEN IT SHOULD NOT BE, CAUSING EITHER RESISTANCE TO STEERING INPUTS, OR APPLYING FORCE WHEN NO STEERING INPUT HAS BEEN APPLIED. WHEN THE ENGINE IS NOT RUNNING, OR AT VERY SLOW SPEEDS, NOISE CAN BE HEARD FROM THE POWER ASSIST MOTOR. IT ACTUATES WHEN NO STEERING INPUTS ARE BEING APPLIED. WHEN STEERING INPUTS ARE APPLIED, TOO MUCH RESISTANCE CAN BE FELT AND THE MOTOR MAKES ADDITIONAL NOISES. I PURCHASED THE CAR IN FEBRUARY OF 2016, AND THIS HAS BEEN HAPPENING SINCE APPROXIMATELY SPRING OF 2016. IT HAS BEEN GETTING PROGRESSIVELY WORSE.