NHTSA Recall 77V055000
Filed by Mercedes-Benz USA, LLC. Component: Service Brakes, Hydraulic. Reported 1977-04-19. An estimated 449 vehicles are affected. Recall repairs are free at any authorized dealer.
Defect
AN AIR LEAK COULD DEVELOP THROUGH THE PISTON SHAFT SEAL RING WHICH SEALS THE INSIDE OF THE BRAKE BOOSTER FROM THE ATMOSPHERE. THIS COULD RESULT IN A REDUCTION IN BRAKE BOOSTER ASSIST, NECESSITATING INCREASED BRAKE PEDAL PRESSURE.
What the manufacturer will do
DEALER WILL REPLACE THE DEFECTIVE SEAL WITH AN IMPROVED VERSION AT NO CHARGE TO OWNER.
Notes
VEHICLE DESCRIPTION: TRUCKS.SYSTEM: SERVICE BRAKES; PISTON SHAFT SEAL.CONSEQUENCES OF DEFECT: BRAKE MALFUNCTION, REQUIRING AN INCREASE IN BRAKE PEDALPRESSURE, COULD CAUSE LOSS OF VEHICLE CONTROL AND AN ACCIDENT.
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