Service brakes, air: disc: rotor
- Component
- Service brakes, air: disc: rotor
- Manufacturer
- BAYERISCHE MOTOREN WERKE
- Vehicles affected
- 799
- Reported to NHTSA
- 2002-03-18
- Owners notified
- 2002-03-25
Defect description
ON CERTAIN PASSENGER VEHICLES, A PROBLEM IN THE MANUFACTURING PROCESS OF THE REAR BRAKE ROTORS MAY HAVE RESULTED IN THE CREATION OF A CRACK WHERE THE BRAKE DISC AND THE PARKING BRAKE DRUM MEET. FURTHER CRACKING OF THE ROTOR COULD OCCUR DUE TO BRAKING TORQUE WHEN THE VEHICLE IS DRIVEN AND THE BRAKES ARE APPLIED. THE BRAKE DRUM, CONNECTED TO THE WHEEL HUB, WOULD COMPLETELY SEPARATE FROM THE DISC.
Safety risk
IF THIS HAPPENED, THE WHEEL WOULD CONTINUE TO TURN, BUT THE DISC WOULD STOP, AND THERE WOULD BE NO BRAKING CAPACITY AT THAT WHEEL, INCREASING THE RISK OF A CRASH.
Manufacturer remedy
DEALERS WILL REPLACE BOTH REAR BRAKE ROTORS. OWNER NOTIFICATION BEGAN MARCH 25, 2002. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT BMW AT 1-800-831-1117.