2002 Audi S3 Service and Repair Manual

This 2002 Audi S3 Service and Repair Manual Covers

Engine & Drivetrain

• 1.8L 20-valve Turbocharged petrol engine (AMK/BAM)
• Bosch Motronic ME7 engine management system diagnostics
• Turbocharger inspection and servicing
• Fuel injection and ignition system repairs
• Intercooler and boost pressure system diagnostics
• Engine cooling and lubrication system servicing
• Exhaust and emissions control system repairs
• 6-speed manual transmission servicing
• Clutch and flywheel inspection and replacement
• quattro permanent all-wheel drive system with Haldex Generation I coupling
• Front and rear differential servicing
• Driveshaft and CV joint repairs

Chassis & Suspension

• MacPherson strut front suspension
• Multi-link rear suspension
• Steering system diagnostics and repair
• Wheel alignment specifications
• Suspension component inspection and replacement
• Wheel bearing servicing

Braking Systems

• Ventilated disc braking system
• Anti-lock Braking System (ABS)
• Electronic Stability Program (ESP)
• Electronic Differential Lock (EDL)
• Brake hydraulic system servicing
• Parking brake adjustment and servicing

Electrical & Wiring

• Complete factory wiring diagrams
• CAN Bus diagnostics
• Charging and starting system diagnostics
• Engine Control Module (ECM)
• Instrument cluster diagnostics
• Power distribution, fuse, and relay assignments
• Central locking system diagnostics
• Exterior and interior lighting diagnostics

Air Conditioning & HVAC

• Automatic climate control diagnostics (where equipped)
• HVAC control module servicing
• Refrigerant recovery and recharge procedures
• Heating and ventilation system repairs

Body & Interior

• Remote central locking diagnostics
• Power window and mirror diagnostics
• Interior trim removal and installation
• Exterior body repair procedures
• Airbag (SRS) system diagnostics

Diagnostics & Troubleshooting

• Audi VAS diagnostic procedures
• Guided Fault Finding (GFF)
• Diagnostic Trouble Code (DTC) troubleshooting
• Control module coding and adaptations
• Component testing procedures
• Service interval reset procedures

Common Error Codes Covered

This manual provides diagnostic and repair procedures for common Audi manufacturer-specific fault codes, including:

Engine Codes

• P0102 – Mass Air Flow Sensor Circuit Low Input
• P0171 – System Too Lean (Bank 1)
• P0300 – Random/Multiple Cylinder Misfire
• P1557 – Charge Pressure Control: Positive Deviation
• P1545 – Throttle Valve Controller Malfunction

Transmission Codes

• P0704 – Clutch Switch Input Circuit Malfunction
• P0727 – Engine Speed Input Circuit No Signal
• P0730 – Incorrect Gear Ratio

ABS & Chassis Codes

• C102D – Wheel Speed Sensor Fault
• C1046 – Steering Angle Sensor Fault
• C1146 – Brake Pressure Sensor Fault

Network Communication Codes

• U0100 – Lost Communication With Engine Control Module
• U1000 – CAN Bus Communication Fault
• U1121 – Missing Message on Data Bus

Body Control Codes

• B2000 – Control Module Internal Fault
• B1226 – Central Locking System Fault
• B1300 – Power Window Control Circuit Fault

The manual also includes hundreds of additional Audi-specific diagnostic trouble codes, wiring diagrams, guided diagnostic procedures, component testing instructions, and factory repair specifications.

Who Is This Manual For?

• Audi dealership technicians
• Independent European vehicle repair workshops
• Performance vehicle specialists
• Automotive technicians
• Classic Audi enthusiasts
• Experienced DIY mechanics

If you are servicing, maintaining, diagnosing, or repairing a 2002 Audi S3, this factory workshop manual provides the complete procedures and technical information required to perform repairs to Audi factory standards.