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Home >> Audi >> 2012 >> TT Base, 2D Convertible >> Repair and Diagnosis (Single Page) >> Brakes >> Mechanical - Hydraulic >> Hydraulic Components - Brake System (Roadster) >> Hydraulic Components >> General Information >> Brake System, Bleeding Without Brake Filler And Bleeder Tool

Brake System, Bleeding Without Brake Filler And Bleeder Tool

NOTE:

A second person is needed to bleed the brake charger/bleeder unit.

CAUTION:

Make sure that brake fluid reservoir does not run empty.

-- Remove protective cap on brake caliper bleeder screw.

-- Connect bleeder bottle hose to brake caliper bleeder valve.

-- Build pressure up in brake system by pumping brake pedal.

NOTE:

Slowly press brake pedal to prevent bubbles from forming.

-- As soon as pressure is built up, hold brake pedal in depressed position.

-- Open the bleeder screw, with bleeder bottle hose connected, until the pressure is relieved (pedal drops).

-- Hold pedal in completely depressed position and close the bleeder screw.

-- Release brake pedal and wait approximately 2 seconds so that brake fluid can flow out of the brake fluid reservoir.

-- Repeat the procedure until the brake fluid flows out clear and free of bubbles.

-- Tighten bleeder screw to 10 Nm.

-- Remove bleeder hose and install protective cap on bleeder screw.

-- Repeat bleeding process on remaining brake calipers.

Bleeding Sequence 

1 - Left front brake caliper

2 - Right front brake caliper

3 - Left rear brake caliper

4 - Right rear brake caliper

-- Fill brake fluid reservoir up to max. marking and install sealing cap.

-- Start engine to check brake pedal travel and pressure.

-- If pedal travel is too long and pressure is too weak, check brake system for possible leaks. Repeat bleeding procedure.

WARNING:

Make sure the brakes are working correctly before driving the vehicle for the first time.