ABS Control Module -J104- /ABS Hydraulic Unit -N55-, REMOVING AND INSTALLING: Removing
-- Disconnect the battery. Refer to BATTERY, DISCONNECTING AND CONNECTING .
-- Insert the : VAG1869/2 -A- between the brake pedal and driver seat. Pretension the brake pedal at least 60 mm.
By doing this, the valves in the brake master cylinder are closed and the brake fluid reservoir does not run empty.
Leaking brake fluid increases the risk of injury.
Risk of skin irritation and injury.
- Wear safety gloves and protective eyewear.
-- Remove the cap -3- from the bleeder valve -1- on the respective brake caliper.
-- Attach the bleeder hose -2- from the bleeder bottle to the bleeder valve for the left front brake caliper.
-- Open the breather valve.
-- Attach the bleeder bottle bleed hose -1- to the left rear brake caliper breather valve.
-- Open the breather valve.
-- Push the brake pedal at least 60 mm using the : VAG1869/2 .
-- Close the left front and left rear bleeder valves.
-- Do not remove the : VAG1869/2 .
-- Place enough lint-free cloths under the ABS Control Module -J104- and the ABS Hydraulic Unit -N55-.
-- First, mark both brake lines -2- from the brake master cylinder and remove from the hydraulic unit.
-- Seal the threaded holes immediately with the plugs 5Q0 698 311.
-- Seal the brake lines with suitable plugs from the : VAS6122 or the dust caps from the bleeder valves.
-- Label and remove the remaining brake lines -1-.
-- Seal the threaded holes immediately with the plugs 5Q0 698 311.
-- Seal the brake lines with suitable plugs from the : VAS6122 or the dust caps from the bleeder valves.
-- Release and remove the connector -3-.
-- Make sure that no brake fluid enters the control module connector housing.
-- Free up the wire.
-- Immediately seal the threaded holes with clean plugs -2- from the Assembly Part Set: 5Q0 698 311 .
-- Carefully pull the ABS Control Module -J104- /ABS Hydraulic Unit -N55- -1- off of the pins on the bracket -3- and remove.
-- If necessary, remove the bolt -4- and the bracket -1-.