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BMW 633 Recall 84V006: Service Brakes, Hydraulic:Power Assist:Vacuum

NHTSA campaign 84V006, reported January 19, 1984, 1,612 vehicles potentially affected.

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The repair is normally free at an authorized dealer.

Official recall notice

Safety recall 84V006BAYERISCHE MOTOREN WERKE
Component
SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM
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.
Risk
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.

Affected vehicles

BMW 5331984
BMW 6331984
BMW 7331984