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NHTSA Campaign 99V131001

SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM:HOSES, LINES/PIPING, AND FITTINGS

Issued by VOLKSWAGEN OF AMERICA,INC · Reported May 21, 1999 · 88,121 vehicles affected

What's wrong

VEHICLE DESCRIPTION: PASSENGER VEHICLES EQUIPPED WITH AUTOMATIC TRANSMISSIONS. A CONTROL VALVE IN THE VACUUM HOSE CONNECTING THE BRAKE BOOSTER TO THE INTAKE MANIFOLD MAY NOT OPEN OR CLOSE FULLY AT TEMPERATURES BELOW -4 F UNDER CERTAIN DRIVING CONDITIONS.

Consequence

THIS CONDITION COULD CAUSE INSUFFICIENT VACUUM TO BE PROVIDED TO THE BRAKE BOOSTER.

Remedy

DEALERS WILL INSTALL A VACUUM BY-PASS SYSTEM INTO VEHICLES OPERATED IN THESE STATES WHICH IS DESIGNED TO PROVIDE SUFFICIENT VACUUM FOR FULL BRAKE ASSIST UNDER ALL WEATHER CONDITIONS.

Vehicles affected by this recall

Make Model Year Units
AUDI A4 1997 88,121
AUDI A4 1998 88,121
AUDI A4 1999 88,121
AUDI A6 1998 88,121
AUDI A6 1999 88,121
VOLKSWAGEN PASSAT 1998 88,121
VOLKSWAGEN PASSAT 1999 88,121

Source: NHTSA Campaign 99V131001 on nhtsa.gov. To check the current repair status for a specific vehicle, use our free VIN decoder.