Volkswagen Golf / Golf GTI / Golf Variant. Manual - part 771

3

Control Module and Hydraulic Unit

⇒ “3.1 Overview - Control Module and Hydraulic Unit”,

page 15
⇒ “3.2  ABS Control Module J104 / ABS Hydraulic Unit N55 , Re‐

moving and Installing”, page 17
⇒ “3.3 Control Module, Separating from Hydraulic Unit”,

page 31
⇒ “3.4 Control Module, Attaching to Hydraulic Unit”, page 32
⇒ “3.5 Brake Lines, Attaching to Hydraulic Unit”, page 33

3.1

Overview - Control Module and Hydraulic Unit

1 - ABS Control Module - J104-

❑ Removing and instal‐

ling. Refer to

⇒ “3.2.1  ABS Control

Module J104 / ABS Hy‐

draulic Unit N55 , Gaso‐

line Engine, Removing

and Installing”,

page 17

 .

2 - ABS Hydraulic Unit - N55-

❑ Removing and instal‐

ling. Refer to

⇒ “3.2.1  ABS Control

Module J104 / ABS Hy‐

draulic Unit N55 , Gaso‐

line Engine, Removing

and Installing”,

page 17

 .

3 - TORX

®

 Bolt

❑ 1. Step: Preliminary

tightening specification

1 Nm to 1.5 Nm (to in‐

stall the seal)

❑ 2. Step: final tightening

specification: 2.5 Nm

❑ Install the new TORX

®

bolt in two steps switch‐

ing back and forth.

4 - Brake Line

❑ 14 Nm
❑ Identification: 5.25 mm

diameter and tube fitting

with a M12 x 1 thread

❑ To the right rear brake

caliper

5 - Brake Line

❑ 14 Nm
❑ Identification: 5.25 mm diameter and tube fitting with a M10 x 1 thread
❑ To the left front brake caliper

6 - Brake Line

❑ 14 Nm
❑ To the right front brake caliper

❑ Identification: 5.25 mm diameter and tube fitting with a M12 x 1 thread

7 - Brake line

❑ 14 Nm
❑ Identification: 5.25 mm diameter and tube fitting with a M10 x 1 thread
❑ To the left rear brake caliper

8 - Brake Line

❑ 14 Nm
❑ Identification: 6 mm diameter and tube fitting with a M12 x 1 thread
❑ Brake master cylinder/primary piston circuit to the ABS Hydraulic Unit - N55-

9 - Brake Line

❑ 14 Nm
❑ Identification: 6 mm diameter and tube fitting with a M12 x 1 thread
❑ Brake master cylinder/secondary piston circuit to the ABS Hydraulic Unit - N55-

10 - Brake Booster

❑ Removing and installing

11 - Bracket
12 - Bolt

❑ 8 Nm

13 - Rubber Buffer
14 - Heat Shield
For allocation. Refer to the Parts Catalog

15 - Hex Nut

❑ 20 Nm

16 - Bracket
17 - Hex Nut

❑ 20 Nm

3.2

ABS Control Module - J104- / ABS Hy‐

draulic Unit - N55- , Removing and In‐

stalling

⇒ “3.2.1  ABS Control Module J104 / ABS Hydraulic Unit N55 ,

Gasoline Engine, Removing and Installing”, page 17
⇒ “3.2.2 ABS Control Module and ABS Hydraulic Unit, Removing

and Installing”, page 21

3.2.1

ABS Control Module - J104- / ABS Hy‐

draulic Unit - N55- , Gasoline Engine,

Removing and Installing

Special tools and workshop equipment required
♦ Torque Wrench 1331 5-50Nm - VAG1331-
♦ Open Ring Spanner Insert - AF 11mm - VAG1410/6-
♦ Torque Wrench - Universal Joint - VAG1410/7-
♦ Mini Torque Wrench - VAS6854-
♦ Brake Pedal Actuator - VAG1869/2- .
♦ Torque Wrench - Assembly Tool - VAG1410/8-
Plugs 5Q0 698 311
1 - M10 Plug
2 - M12 Plug

Installed Component Location
The ABS Control Module - J104- -1- is attached to the ABS Hy‐

draulic Unit - N55- and is located inside the engine compartment

on the right side.
Removing

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 .

– If equipped, remove the engine cover. Refer to ⇒  Engine Me‐

chanical, Fuel Injection and Ignition; Rep. Gr.  10 ; Engine

Cover; Engine Cover, Removing and Installing .

– If equipped, remove the heat shield -1-.
– Unclip the heat shield -1- from the bracket -2- -arrow-.
– Unclip the wire routing.

– Push the lock washer downward in the direction of -arrow A-.
– Release the locking mechanism in the direction of -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.