Overview - Control Module And Hydraulic Unit

Fig 1: Exploded View Of ABS Control Module And Hydraulic Unit

Courtesy of AUDI OF AMERICA, LLC

Bracket
Nut
- 20 Nm
Rubber Bushing
Mounting Bracket
ABS Hydraulic Unit -N55-
- ABS Control Module -J104- /ABS Hydraulic Unit -N55-, REMOVING AND INSTALLING
  Model S3, gasoline particulate filter, removing:
  
  Refer to OVERVIEW - EMISSIONS CONTROL SYSTEM .
ABS Control Module -J104-
- Disconnect the connector with the ignition switched off
- Refer to ABS Control Module -J104- /ABS Hydraulic Unit -N55-, REMOVING AND INSTALLING
- Refer to CONTROL MODULE, SEPARATING FROM HYDRAULIC UNIT
- Refer to CONTROL MODULE, INSTALLING ON HYDRAULIC UNIT
Brake Line
- From brake master cylinder to the hydraulic unit
- Identification: 5.25 mm diameter and union bolt with M10x1 thread
- Tightening Specifications
  - With standard tool: 14 Nm
  - With special tool Fig 2 12 Nm
Brake Line
- From brake master cylinder to the hydraulic unit
- License plate: 6 mm diameter and union bolt with M12x1 thread
- Tightening Specifications
  - With standard tool: 14 Nm
  - With special tool Fig 2 12 Nm
Torx Bolt
- Replace after removing
- Tighten the new Torx bolts in two steps, switching back and forth.
  - 1. Step: preliminary tightening specification: 1 Nm to 1.5 Nm (to position the seal)
  - 2. Step: final tightening specification: 2.5 Nm
Heat Shield
- Attached version
- Bolted version. Refer to Fig 3.
- Installed, depending on the version
Bolt
- 8 Nm

Brake Lines Tightening using Special Tools

Fig 2: Special Tool Assembly For Tightening Brake Lines

Courtesy of AUDI OF AMERICA, LLC

Special tools and workshop equipment required

Heat Shield with Threaded Connection

Fig 3: Heat Shield - Threaded Version

Courtesy of AUDI OF AMERICA, LLC

-- Tighten the nut -1- for the heat shield -2- to 8 Nm.

-- Press on the bracket for the lock washer -3- all the way.