BLEEDING WITH ABS Hydraulic Unit -N55- PUMP

WARNING: This page is about a different car, the 2023 Audi SQ8, 2023 Audi RS Q8, and 2023 Audi Q8. However, it is still accessible from the selected car via links, so may be relevant.

If the brake system cannot be bled correctly, proceed as follows:

The hydraulic pump must be activated by the interchange test.

-- Bleed the hydraulic system. Refer to HYDRAULIC SYSTEM, BLEEDING WITH BRAKE CHARGER/BLEEDING UNIT .

Also:

-- Connect the Vehicle Diagnostic Tester.

-- Switch the ignition on.

-- Fill the brake fluid reservoir up to the "MAX" mark.

Fig 1: Brake Fluid Reservoir

Courtesy of AUDI

-- Select and start OBD mode.

-- Select 003- Brake electronics .

-- Select the basic setting button.

-- Bleed the brakes. Refer to HYDRAULIC SYSTEM, BLEEDING WITH BRAKE CHARGER/BLEEDING UNIT .

-- Use login 40168.