United States 84V006000
BMW of North America, LLC
The problem
THE POWER BRAKE BOOSTER MAY HAVE BEEN IMPROPERLY MACHINED CAUSING STRESS AND POSSIBLY CRACKS IN THE MASTER CYLINDER WHERE IT IS ATTACHED TO THE POWER BRAKE BOOSTER.
What owners should do
COMPONENTS WILL BE INSPECTED FOR IMPROPER MACHINING AND, IF FOUND, MASTER CYLINDER AND POWER BRAKE BOOSTER WILL BE REPLACED.
Units 1612