United States 98V142000
BMW of North America, LLC
The problem
VEHICLE DESCRIPTION: PASSENGER VEHICLES. THE DIFFERENTIAL PINION SHAFT WITHIN THE DIFFERENTIAL CASE ASSEMBLY WAS PRODUCED WITHOUT THE APPROPRIATE SURFACE HARDENING. THIS CAN RESULT IN THE SHAFT EXPERIENCING PREMATURE WEAR.
Risk
THIS CONDITION WILL CAUSE A NOISE FROM THE DIFFERENTIAL AND, ULTIMATELY, FAILURE OF THE SHAFT AND LOSS OF DRIVE.
What owners should do
DEALERS WILL REPLACE THE ENTIRE DIFFERENTIAL ASSEMBLY.
Units 1100