High Pressure Testing
WARNING: This page is about a different car, the 2016 Audi A3 and 2015 Audi A3. However, it is still accessible from the selected car via links, so may be relevant.
- Brake system (brake master cylinder, brake hoses, brake lines and brake calipers) tested for function and leaks.
-- Remove bleed 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 brake pedal until the gauge indicates a pressure of 50 bar (725 psi). The pressure must not drop by more than 4 bar (58 psi) during the test period of 45 seconds.
Replace master cylinder if pressure drops greatly.