NHTSA recall 99V272000
Power train › Driveline › Differential unit
BMW Z3
The defect
Vehicle description: passenger vehicles. the rear axle differential may contain ring gear bolts that were incorrectly torqued during assembly. the bolt or bolts could loosen leading to noise from the differential.
The risk
The bolt or bolts could loosen leading to noise from the differential and if a bolt were to completely work loose from its mount, lockup of the rear axle could occur.
The remedy
Dealers will inspect the vehicle's differential and if involved, will replace it.