Volkswagen Golf / Golf GTI / Golf Variant. Manual - part 774

The control module is bolted to the hydraulic unit -1- and is located

at right in the engine compartment.

WARNING

Do  not  bend  the  brake  lines  near  the  ABS  Hydraulic  Unit  -

N55- !

– Read and note the present control module coding.
– If the vehicle has a coded radio, get the radio code from the

customer before beginning.

– Disconnect the battery. Refer to ⇒  Electrical Equipment; Rep.

Gr.  27 ; Battery; Battery, Disconnecting and Connecting .

– Remove the engine cover.
– Remove the noise insulation. Refer to ⇒  Body Exterior; Rep.

Gr.  66 ; Noise Insulation; Overview - Noise Insulation .

– Remove the front exhaust pipe. Refer to ⇒  Rep. Gr.  26 ; Ex‐

haust Pipes/Mufflers; Front Exhaust Pipe, Removing and In‐

stalling .

– Disconnect the connector -1-.
– Loosen the clamping sleeve -2- and slide it toward the rear.

– Remove the bolts -1-.
– Loosen the bolt -2- and the clamp.
– Remove the front exhaust pipe.
– Remove the right driveshaft. Refer to ⇒  Suspension, Wheels,

Steering; Rep. Gr.  40 ; Driveshaft; Driveshaft, Removing and

Installing

– Pivot the suspension strut to the rear and lock.
– On vehicles with heat shield, remove heat shield.
– Unclip the wire routing.

– Press the securing clip down -arrow A-.

– Disconnect the connector -arrow B-.
– Remove the connector -1-.

– Install the Brake Pedal Actuator - VAG1869/2- .

– Attach the bleeder bottle bleed hose -1- to the left front brake

caliper bleed valve.

– Open the bleed valve.

– Attach the bleeder bottle bleed hose -1- to the left rear brake

caliper bleed valve.

– Open the bleed valve.
– Push the brake pedal with the Brake Pedal Actuator -

VAG1869/2- at least 60 mm.

– Close left front and left rear bleeder valves.
– Do not remove the Brake Pedal Actuator - VAG1869/2- .
– Place sufficient lint-free cloths under the control module and

hydraulic unit.

Note

Make sure that brake fluid does not come in contact with the ter‐

minals.

– Remove the cover from the bulkhead and unclip the brake line.
– First, mark both brake lines from master cylinder and remove

from the hydraulic unit.

– Seal the threaded holes immediately with plugs from the as‐

sembly part set part number 5Q0 698 311.

– Mark, remaining brake lines (brake calipers), unfasten and

plug the threaded holes.

– Lift the hydraulic unit with control module up and out of the

dampers -arrow-.

– Place the hydraulic unit with the control module carefully below

in the engine compartment.

Caution

Set aside the ABS Hydraulic Unit - N55- with the ABS Control

Module - J104- so that it cannot fall down.

– Raise the vehicle.

– Remove the bracket in the vehicle from the hydraulic unit

-arrows-.

– Pivot the suspension strut -1- to the side and toward the rear.

Lock it in this position with a wooden block -2-.

– Carefully guide the hydraulic unit with the control module

downward.

– Carefully place the hydraulic unit with the control module at

the bottom of the engine compartment.

Note

Position the ABS Hydraulic Unit - N55- with the ABS Control Mod‐

ule - J104- so that it cannot fall down.

– Raise the vehicle.

– Guide out the hydraulic unit -3- out of the vehicle through the

wheel housing.

Installing

Note

♦

Do not remove sealing plugs at new hydraulic unit until the

corresponding brake line is about to be installed.

♦

If the sealing plugs are removed too early, brake fluid can es‐

cape and unit may not be sufficiently filled or adequately bled.

♦

When installing the hydraulic unit, make sure the damper rub‐

ber is not pushed out of the console.

– Before assembling the holder for the ABS Hydraulic Unit -

N55- in the bracket, spray the rubber bushings with Silicone

Lubricant Spray - D 007 000 A2- .

– Install the brake lines carefully with the Torque Wrench - As‐

sembly Tool - VAG1410/8- .

– Install in reverse order of removal.

Brake Line Tightening Sequence
– Remove the Brake Pedal Actuator - VAG1869/2- .
– Bleed the brake system. Refer to

⇒ “6.2 Hydraulic System, Standard Bleeding”, page 132

 .

– Enter radio code.
– Code the ABS Control Module - J104- using the Vehicle Di‐

agnostic Tester .

A Steering Angle Sensor - G85- , Transverse Acceleration Sensor

- G200- , Longitudinal Acceleration Sensor - G251- and Brake

Pressure Sensor 1 - G201- basic setting must be done.
Tightening Specifications