Load Compensator: Testing and Inspection

Brake pressure regulator, checking and adjusting

Special tools and equipment





- VAG 1310 A Brake pressure gauge





The brake pressure regulator is mounted on a bracket mounted to the rear axle. The regulator is controlled from the rear axle by a spring.

Checking function
- Depress the brake pedal and release quickly (vehicle standing on its wheels).
- Brake pressure regulator must move.

Checking and adjusting pressure

Note: The brake pressure regulator is set with the vehicle unladen).

- Lift vehicle and connect the pressure gauges to left front brake caliper and to right rear wheel cylinder/caliper.
- Bleed both gauges.
- Lower vehicle and bounce the rear of the vehicle several times.
- Press brake pedal and measure pressures.
- Compare figures attained with specifications and if necessary adjust.
1) The term "unladen" means: The weight of the vehicle ready for the road which has a:
Driver's weight of 75 kg (165.34 lb).
- Full fuel tank.
- Spare wheel, vehicle tool kit and jack installed to relevant stowage points on vehicle.
- The fluid reservoir for the windshield/headlight washer system must be full.





Specifications for load dependent brake pressure regulator

Adjusting brake pressure regulator
Rear axle test pressure too high:
- Release regulator spring.
Rear axle test pressure too low:
- Increase tension regulator spring.

Note: Do not adjust with brake pedal depressed. Use the following work sequence:

Read off figures:
- Release pedal.
- Adjust spring.
Press pedal again:
- Read off figures and if necessary, readjust.
- Remove pressure gauge and bleed brake system.