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Home >> Volkswagen >> 2023 >> Jetta Sport, Standard Trans >> Repair and Diagnosis (Single Page) >> Brakes >> Anti-Lock Brakes >> Antilock Brake System >> 45 Antilock Brake System >> Control Module And Hydraulic Unit >> ABS Control Module -J104- /ABS Hydraulic Unit -N55-, REMOVING AND INSTALLING >> Removing
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ABS Control Module -J104- /ABS Hydraulic Unit -N55-, REMOVING AND INSTALLING: Removing

CAUTION:

Risk of destroying the brake lines by bending.

- Never forcefully bend the brake lines in the hydraulic unit area.

-- Read and note the present control module code.

-- On vehicles with a coded radio, note the code. Retrieve it if necessary.

-- Disconnect the battery. Refer to BATTERY, DISCONNECTING AND CONNECTING .

-- If equipped, remove the engine cover. Refer to ENGINE COVER, REMOVING AND INSTALLING (1.5L) or ENGINE COVER, REMOVING AND INSTALLING (2.0L) .

-- If equipped, remove the heat shield -1-.

GWWM45-10038Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- To do so, unclip the heat shield -1- from the bracket -2- -arrow-.

-- Unclip the wiring guide.

-- Slide the locking mechanism downward in the -direction of arrow A-.

GWWA45-10178Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Release the locking mechanism in the -direction of arrow B-.

-- Remove the connector -1-.

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

GWWN44-10777Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Attach the bleeder bottle bleed hose -1- to the left front brake caliper breather valve.

Fig 1: Identifying Bleed Valve
GWWM46-10052Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Open the breather valve.

-- Attach the bleeder bottle bleed hose -1- to the left rear brake caliper breather valve.

Fig 2: Identifying V.A.G 1869/2
GWWM46-10039Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Open the breather valve.

-- Push the brake pedal at least 60 mm using the Brake Pedal Actuator: V.A.G 1869/2  .

-- Close the left front and left rear bleeder valves.

-- Do not remove the Brake Pedal Actuator: V.A.G 1869/2  .

-- Remove the cover from the bulkhead and unclip the brake lines.

-- First label both brake lines -5- and -6-.

Fig 3: Brake Line Tightening Sequence
GWWN45-10263Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Remove the brake lines -5- and -6- from the ABS Hydraulic Unit -N55-.

-- Immediately seal the brake lines and open connections using Sealing Plugs from Repair Kit: 1H0 698 311 A  or using suitable plugs from the Engine Bung Set: VAS 6122  .

-- Label the remaining brake lines (brake calipers) -arrows- and remove.

GWWA45-10157Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Immediately seal the brake lines and open connections using Sealing Plugs from Repair Kit: 1H0 698 311 A  or using suitable plugs from the Engine Bung Set: VAS 6122  .

-- Pull the ABS Control Module -J104- with the ABS Hydraulic Unit -N55- upward from the shock absorbers -arrow-.

GWWN45-10247Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Remove the bracket in the vehicle from the hydraulic unit -arrows- (only on engines with too little clearance between the cross panel and engine).

GWWN45-10261Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.