90 Quattro 20V (Canada) L5-2309cc 2.3L DOHC (7A) (1989)
Brake Pressure Regulator: Service and Repair
Checking
Brake pressure regulator is mounted on right rear of body and operated by spring attached to rear axle. Test must be conducted with empty
vehicle, full fuel tank and driver's seat occupied.
1.
Firmly depress pedal once (vehicle must be on ground).
2.
Release pedal suddenly and ensure lever on pressure regulator moves.