Leak Test

WARNING: This page is about a different variant/trim than selected.

Special tools and workshop equipment required

Brake Pressure Gauge:VAG1310A
Brake Pedal Actuator:VAG1869/2 .

NOTE:

Additional adapters may be needed in order to connect :VAG1310A to the caliper.

High Pressure Testing

Brake system (brake master cylinder, brake hoses, brake lines and brake calipers) tested for function and leaks.

-- Remove bleeder screw at one of the front brake calipers. Connect the :VAG1310A and bleed.

-- Insert the :VAG1869/2 between the brake pedal and driver seat. Apply pressure to the brake pedal until the pressure gauge indicates a pressure of 50 bar (725 psi). The pressure must not drop more than 4 bar (58 psi) during the test period of 45 seconds.

Courtesy of AUDI OF AMERICA, LLC

Replace the brake master cylinder if the pressure decrease is too high.

Low Pressure Testing

-- Set the brake pedal actuator back far enough that the pressure gauge indicates 6 bar (87 psi) positive pressure.

-- The pressure must not drop by more than 1.0 bar (14.5 psi) during a test period of 3 minutes.

Replace the brake master cylinder if the pressure decrease is too high.