Anti-Lock Brake System

Description
Operation
- Abs Control Unit
- Speed Sensor
Bleeding Brake System
Testing & Diagnosis
- Description Of Diagnostic System
  - System Warnings & Precautions
  - Test Equipment
- Pre-Diagnosis Inspection
- Diagnostic Procedure
  - Equipment Hook-Up
  - Preparation
Testing
- Operational Test
- Hydraulic Modulator - Hydraulic Pressure Test
- "Anti-Lock" Light
Test 1
- 80/90 QUATTRO & 5000CS QUATTRO
- 80/90, 5000S & 5000CS Turbo
Test 2
- All Models
Test 3
- All Models
Test 4
- All Models
Test 5
- All Models
Test 6
- 80/90 QUATTRO & 5000CS QUATTRO
- 5000S & 5000CS Turbo
Test 7
- All Models
Test 8
- All Models
Test 9
- All Models
Test 10
- All Models
Test 11
- All Models
Test 12
- All Models
Test 13
- All Models
Test 14
- All Models
Test 15
- All Models
Test 16
- All Models
Test 17
- All Models
Test 18
- 80/90 QUATTRO & 5000CS QUATTRO
- 5000S & 5000CS Turbo
Test 19
- 5000CS QUATTRO
- 5000S & 5000CS Turbo
Test 20, 21 & 22
- All Models
Test 23
- All Models
Test 24
- All Models
Final Check
- All Models
Removal & Installation
- Anti-Lock Brake System (Abs) Control Unit
  - Notes
  - Removal & Installation
- Hydraulic Modulator
  - Removal & Installation
- Front Speed Sensor
  - Removal & Installation (With Retaining Bolt)
  - Removal & Installation (Without Retaining Bolt)
- Rear Speed Sensor
  - Removal & Installation (All Quattro Models)
  - Removal & Installation (80/90, 5000S & 5000CS Turbo)
Wiring Diagrams