Leakage Test Under Pressure

Leakage Test Under Pressure

Special tools, testers and auxiliary items required

• Tester For Brake Pressure Regulator (V.A.G 1310A)

• Adapter M 10 (V.A.G 1310/6)

Test Prerequisites

• Brake system function OK and no leaks

Checking

- Remove the bleeder valve at one front brake caliper.

- Connect (V.A.G 1310 A) and bleed.

- Apply pressure to brake pedal until the gauge indicates a pressure of 50 bar. The pressure must not drop by more than 4 bar during the test period of 45 seconds. Replace master cylinder if pressure drops greatly.