ABS Control Module -J104- /ABS Hydraulic Unit -N55-, REMOVING AND INSTALLING: Installing

Install in the reverse order of removal while noting the following:

-- If necessary, install the hydraulic control unit retaining bracket.

-- Connect the connector -2-.

Courtesy of AUDI

-- Carefully push the hydraulic control unit -1- into the pins -arrow-.

-- Tighten the nut -3-.

-- Remove the plug.

-- Insert the brake lines -1 and 2- into the ABS Hydraulic Unit -N55- and then install the union bolts by hand and tighten (example illustration).

Fig 1: Hand Tightening Union Bolts

Courtesy of AUDI

-- After securing the brake lines to the hydraulic unit select the "Hydraulic connections, basic setting". Refer to DIAGNOSTIC ENTRIES .

-- Remove the Brake Pedal Actuator:V.A.G 1869/2 .

-- Remove all cloths from the vehicle that were previously placed down.

-- Bleed the brake system. Refer to HYDRAULIC SYSTEM, BLEEDING .

-- After replacing the hydraulic control unit, select the "Hydraulic unit, replacing" program. Refer to DIAGNOSTIC ENTRIES .

-- Follow the instructions in the Vehicle Diagnostic Tester display.

CAUTION:

Faulty brakes increase the risk of an accident.

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