ABS Control Module -J104- /ABS Hydraulic Unit -N55-, REMOVING AND INSTALLING, LHD VEHICLES: Removing
Component Location:
The control module is bolted to the hydraulic unit and is located at right in the engine compartment.
Risk of destroying the brake lines by bending.
- Never forcefully bend the brake lines in the hydraulic unit area.
-- If the ABS Control Module -J104- will be replaced, perform the 0003 - Control Module, Replacing (Starting) function. Use the Vehicle Diagnostic Tester to do so.
-- Disconnect the battery. Refer to BATTERY, DISCONNECTING AND CONNECTING .
Vehicles with 1.0 L Gasoline Engine:
-- Remove the air filter housing. Refer to the appropriate Service Information .
Vehicles with 1.5L, 1.8L and 2.0L Gasoline Engine:
-- Remove the engine cover. Refer to ENGINE COVER, REMOVING AND INSTALLING .
Vehicles with Diesel Engine:
-- Remove the engine cover. Refer to the appropriate Service Information .
-- Remove the Differential Pressure Sensor -G505- and the Exhaust Pressure Sensor 1 -G450- from the cylinder head cover. Refer to the appropriate Service Information .
-- Remove the Exhaust Gas Temperature Sensor 3 -G495-. Refer to the appropriate Service Information .
-- Remove the Reducing Agent Injector -N474- from the emissions control module with the lines attached and move it to the right. Refer to the appropriate Service Information .
-- Remove the noise insulation. Refer to OVERVIEW - NOISE INSULATION .
-- Disconnect the connector -1- for the Oil Level Thermal Sensor -G266-.
-- Disconnect the connector -2- from the Heater Support Pump -V488-.
-- Remove the front exhaust pipe from the emissions control module. Refer to the appropriate Service Information .
-- Remove the pendulum support. Refer to PENDULUM SUPPORT, REMOVING AND INSTALLING .
Vehicles with diesel engine and AWD:
-- Remove the driveshaft from the front bevel box. Refer to the appropriate Service Information and then move it to the side.
Continuation for all vehicles with diesel engine:
-- Position the Engine Support: T10533 as shown and tighten the bolts hand-tight.
- Bolt -3- = pendulum support original bolt
- Install a M8 x 30 mm bolt -1- with a washer -2- in the threaded hole of the noise insulation.
- -A- flat side
- -B- high side
-- Push the engine with the Engine Support: T10533 forward.
Golf GTE:
-- Remove the catalytic converter. Refer to CATALYTIC CONVERTER, REMOVING AND INSTALLING, FWD or CATALYTIC CONVERTER, REMOVING AND INSTALLING, AWD .
Continuation for All Vehicles:
-- For vehicles with a heat shield, remove the heat shield -1-.
-- Press the locking mechanism downward -arrow A-.
-- Release the connector -arrow B-.
-- Remove the connector -1-.
-- Insert the Brake Pedal Actuator: V.A.G 1869/2 .
-- Attach the bleeder bottle bleed hose -1- to the left front brake caliper breather valve.
-- 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 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 .
Make sure no brake fluid gets on the contacts.
-- Remove the cover from the bulkhead and unclip the brake lines.
-- First, mark both brake lines from the brake master cylinder and remove from the hydraulic unit.
-- Immediately seal the threaded holes with the plugs from the assembly kit part number 5Q0 698 311.
-- Mark the remaining brake lines (brake calipers), remove them and seal off the threaded holes.
-- Pull the hydraulic unit with the control module upward out of the shock absorbers -arrow-.
-- Remove the bracket in the vehicle from the hydraulic unit -arrows-.
-- Remove the hydraulic unit.