NHTSA Campaign 93V067000

SERVICE BRAKES, HYDRAULIC:POWER ASSIST

Issued by MERCEDES-BENZ USA, INC. · Reported Apr 28, 1993 · 14,300 vehicles affected

What's wrong

DURING THE REMOVAL AND INSTALLATION OF THE AIR FILTER HOUSING WHILE SERVICING THE VEHICLE, IT IS POSSIBLE TO MISROUTE THE PREFORMED VACUUM HOSE AND DAMAGE THE CHECK VALVE IN THE VACUUM HOSE. IF THE CHECK VALVE IS DAMAGED, LOSS OF SUFFICIENT BRAKE POWER ASSIST WILL OCCUR.

Consequence

LACK OF SUFFICIENT BRAKE POWER ASSIST WILL INCREASESTOPPING DISTANCE AND COULD RESULT IN A VEHICLE ACCIDENT.

Remedy

REPLACE THE PREFORMED VACUUM HOSE WITH A NEWLY DESIGNED PREFORMED HOSE WITH A RELOCATED CHECK VALVE WHICH WILL ELIMINATE THE POSSIBILITY OF THE CHECK VALVE BEING DAMAGED.

Vehicles affected by this recall

Make Model Year Units
MERCEDES-BENZ 500SL 1990 14,300
MERCEDES-BENZ 500SL 1991 14,300
MERCEDES-BENZ 500SL 1992 14,300

Source: NHTSA Campaign 93V067000 on nhtsa.gov. To check the current repair status for a specific vehicle, use our free VIN decoder.