NHTSA recall 98V142000
Power train › Driveline › Differential unit
BMW 540I and 4 more
The defect
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.
The risk
This condition will cause a noise from the differential and, ultimately, failure of the shaft and loss of drive.
The remedy
Dealers will replace the entire differential assembly.