ABS Control Module -J104- /ABS Hydraulic Unit -N55-, REMOVING AND INSTALLING: Installing
Install in reverse order of removal and note the following:
-- Carefully press the hydraulic control unit -2- in the pins -arrows- on the bracket -1-.
- The hydraulic control module must rest in all pins.
-- Insert the brake lines -1 and 2- in the ABS Hydraulic Unit -N55- install the union bolts by hand and tighten.
-- Connect the connector -3-.
-- After securing the brake lines to the hydraulic unit, perform output diagnostic test mode. Refer to Vehicle Diagnostic Tester.
It can be determined in output diagnostic test mode, whether the line connections were interchanged.
-- Install the Engine Control Module -J623-. Refer to the appropriate Service Information .
-- Remove the Brake Pedal Actuator: VAG1869/2 .
-- Bleed the brake system. Refer to HYDRAULIC SYSTEM, BLEEDING .
-- If the ABS Control Module -J104- /ABS Hydraulic Unit -N55- is being replaced, select the "Replace" function for the ABS Control Module -J104- /ABS Hydraulic Unit -N55-. Refer to Vehicle Diagnostic Tester, Guided Functions .
Risk of accident!
- Make sure the brakes are working correctly before driving the vehicle for the first time.