Mechanical Adjustment
- Brake pressure regulator is mounted on underside of body and connected to rear axle by operating spring. Adjustable regulator is on left rear side in 5000S models and right rear side in 4000S and Coupe GT models. The non-adjustable regulator of the 4000CS Quattro is at right of brake master cylinder.
- Step firmly on brake pedal with vehicle on ground. Release pedal rapidly. Lever on pressure regulator should move. Raise vehicle until weight is off rear suspension. Push lever of regulator toward rear of vehicle until it reaches stop.
- Loosen lock nut holding plastic roller in place on bracket. Attach operating spring to lever and roller. Adjust roller position so that there is no play in spring and no tension on plastic roller. See Fig 1 . Tighten lock nut.
NOTE:
For following procedure, vehicle must be empty, have full fuel tank and be resting on wheels. The 4000S Quattro and 4000CS Quattro have non-adjustable regulator.