Corrado, Golf, GTI, Jetta & Passat

Depress brake pedal once firmly. Release brake pedal quickly, watching for regulator lever to move when pedal is released. If regulator lever does not move when pedal is released quickly, replace regulator. If regulator lever moved, go to next step.
Ensure vehicle fuel tank is full, luggage compartment is empty and a driver is in driver seat. Raise and support vehicle. Using Pressure Gauges (US 1016), attach one gauge to right rear brake cylinder or caliper. If vehicle is ABS-equipped, go to next step. If vehicle is not ABS-equipped, go to step 4).
Using Distributor (tee) (803 611 755) and an additional 8" (203 mm) of brake line, connect one gauge in front of pressure regulator. Bleed pressure gauge and hoses through valve on gauges. Lower vehicle. Bounce rear of vehicle several times. Go to step 5).
Attach Pressure Gauges (US 1016) to left front brake caliper. Bleed pressure gauge and hoses through valve on gauges. Lower vehicle. Bounce rear of vehicle several times.
Pump brake pedal several times. Press on brake pedal until reading on front gauge shows pressure given for 1st reading in appropriate BRAKE PRESSURE TABLE. Hold brake pressure to specification. Rear gauge reading should be within specification given for 1st reading in appropriate BRAKE PRESSURE TABLE.
Increase pressure on brake pedal until reading on front gauge shows pressure given for 2nd reading in appropriate BRAKE PRESSURE TABLE. Hold brake pressure to specification. Rear gauge reading should be within specification given for 2nd reading in appropriate BRAKE PRESSURE TABLE. If pressures are within specification, brake pressure regulator is functioning properly. If pressures are not within specification, go to next step.
If pressure is too high, decrease spring pressure on regulator. If pressure is too low, increase spring pressure on regulator. If adjusting spring pressure on regulator does not bring pressures within specification, replace pressure regulator. Disconnect gauges, and bleed brakes.