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

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

-- Before assembling the holder for the ABS Hydraulic Unit -N55- in the bracket, coat the rubber bushings -3- with a Special Lubricant.

GWWN45-10406Courtesy of AUDI OF AMERICA, LLC

-- Make sure that the bracket -1- is seated correctly in the guide -arrow-. Tighten the bolt -4-.

-- Press the ABS Hydraulic Unit -N55- -item 1- carefully on the pins on the bracket -4-.

GWWA45-10398Courtesy of AUDI OF AMERICA, LLC

-- Check the rubber bushing -3- and the ABS Hydraulic Unit -N55- -item 1- for the correct seating.

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

Fig 1: Hand Tightening Union Bolts
GWWA45-10349Courtesy of AUDI OF AMERICA, LLC

-- Connect the connector -3-.

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

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

-- Remove the Brake Pedal Actuator: VAG1869/2  .

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

-- Complete the "Control module, replacing" program after replacing the hydraulic control unit. Refer to Vehicle Diagnostic Tester.

CAUTION:

Faulty brakes increase the risk of an accident.

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