Overview - Control Module And Hydraulic Unit

WARNING: This page is about a different car, the 2022 Audi S3, 2022 Audi RS 3, 2022 Audi A3 Quattro, and 2022 Audi A3. However, it is still accessible from the selected car via links, so may be relevant.

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

Open Ring Spanner Insert - AF 11mm: VAG1410/6
Torque Wrench - Universal Joint : VAG1410/7
Mini Torque Wrench: VAS6854

Heat Shield with Threaded Connection

Fig 3: Heat Shield - Threaded Version

Courtesy of AUDI OF AMERICA, LLC

Replace the self-locking nut after removing.

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

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