BMW 633 1984: SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM

General Information

NHTSA Campaign ID Number: 84V006000

Make Model Year
BMW 633 1984
Date Owners Notified Date Received by ODI Date Added to Database
1984-03-26 1984-01-19 1984-02-15

Production Dates: 1983-09-01 - 1983-11-01

Manufacturers Involved: BMW of North America, LLC

Component: SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM

Potential Number Of Units Affected: 1612

Report Initiator: MFR MFR Report

Summary

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.

Remedy

COMPONENTS WILL BE INSPECTED FOR IMPROPER MACHINING AND, IF FOUND, MASTER CYLINDER AND POWER BRAKE BOOSTER WILL BE REPLACED.

Notes

VEHICLE DESCRIPTION: PASSENGER VEHICLES WITH POWER BRAKE BOOSTERS.SYSTEM: BRAKES.CONSEQUENCES OF DEFECT: THE STRESS AND CRACKS COULD CAUSE MISALIGNMENT OF THEPOWER BOOSTER AND MASTER CYLINDER AND POSSIBLE REDUCTION IN BRAKING ABILITY ORLOSS OF BRAKES. AN ACCIDENT COULD OCCUR IF REDUCED BRAKING ABILITY IS NOTCORRECTED.