The 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.
The remedy
DEALER WILL REPLACE THE DEFECTIVE SEAL WITH AN IMPROVED VERSION AT NO CHARGE TO OWNER.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|
Components: SERVICE BRAKES, HYDRAULIC:POWER ASSIST
Other service brakes, hydraulic recalls in 1977
26 of the 245 recall campaigns reported to NHTSA in 1977 concerned the service brakes, hydraulic; MERCEDES-BENZ USA, INC. filed 61 campaigns in all.
| 77V227000 20 Dec 1977 | AM GENERAL CORPORATION |
| 77V202000 16 Nov 1977 | CHRYSLER CORPORATION |
| 77V188000 25 Oct 1977 | CHRYSLER CORPORATION |
| 77V184000 19 Oct 1977 | VOLKSWAGEN OF AMERICA,INC |
| 77V182000 18 Oct 1977 | VOLKSWAGEN OF AMERICA,INC |
| 77V181000 17 Oct 1977 | GENERAL MOTORS CORP. |
| 77V164000 28 Sept 1977 | HARLEY-DAVIDSON MOTOR CO. |
| 77V158000 22 Sept 1977 | FORD MOTOR COMPANY |
NHTSA recalls (public domain) · all recalls of 1977