2002 Audi A8 (D2) Service and Repair Manual

This 2002 Audi A8 (D2) Service & Repair Manual Covers

Engine & Powertrain

• Complete repair procedures for the 3.7L V8 engine
• Complete repair procedures for the 4.2L V8 engine
• Complete repair procedures for the 6.0L W12 engine (where equipped)
• Market-specific 2.5L V6 TDI diesel engine servicing
• Bosch engine management system diagnostics
• Multi-point fuel injection diagnostics
• Engine cooling and lubrication system repairs
• Timing belt inspection and replacement procedures (engine dependent)
• Intake and exhaust system servicing
• Emissions control system diagnostics
• 5-speed Tiptronic automatic transmission servicing
• 6-speed manual transmission servicing (where equipped)
• quattro permanent all-wheel drive system
• Front and rear differential servicing
• Driveshaft and axle repairs

Suspension & Steering

• Front multi-link suspension repairs
• Rear double wishbone suspension servicing
• Power steering system diagnostics
• Wheel alignment specifications
• Steering rack inspection and repair
• Wheel bearing replacement procedures
• Suspension component inspection and replacement

Braking Systems

• Hydraulic brake system repairs
• Anti-lock Braking System (ABS)
• Electronic Differential Lock (EDL)
• Electronic Stability Program (ESP) (where equipped)
• Brake booster diagnostics
• Brake pad and rotor replacement
• Brake caliper servicing
• Brake fluid replacement procedures

Electrical Systems

• Complete factory wiring diagrams
• 12V electrical system diagnostics
• CAN Bus diagnostics
• Charging and starting system diagnostics
• Alternator servicing
• Starter motor diagnostics
• Fuse and relay identification
• Xenon headlamp diagnostics (where equipped)
• Exterior and interior lighting repairs
• Comfort and convenience electronics

Climate Control & HVAC

• Automatic climate control diagnostics
• Air conditioning system servicing
• Refrigerant specifications
• HVAC control unit diagnostics
• Heating and ventilation repairs
• Cabin air filter replacement

Body & Interior

• Power windows and mirrors
• Central locking system
• Factory anti-theft system
• Power seat adjustment and memory functions (where equipped)
• Heated seat diagnostics (where equipped)
• Factory navigation system diagnostics (where equipped)
• Audi Symphony and Bose audio system servicing (where equipped)
• Sunroof servicing
• Instrument cluster diagnostics

Diagnostics & Troubleshooting

• Audi Guided Fault Finding procedures
• OBD-II Diagnostic Trouble Code (DTC) analysis
• Component testing procedures
• Control module diagnostics
• Basic Settings and Adaptation procedures
• Service reminder reset procedures
• Wiring diagram interpretation

Common Error Codes Covered

This manual contains detailed diagnostic procedures for Audi manufacturer-specific Diagnostic Trouble Codes (DTCs) applicable to the 2002 Audi A8 (D2).

Engine Codes

• P0101 – Mass Air Flow Sensor Performance
• P0118 – Engine Coolant Temperature Sensor High Input
• P0171 – System Too Lean (Bank 1)
• P0300 – Random/Multiple Cylinder Misfire Detected
• P0322 – Engine Speed Sensor No Signal
• P0420 – Catalyst System Efficiency Below Threshold (Bank 1)

Transmission Codes

• P0700 – Transmission Control System Malfunction
• P0715 – Input/Turbine Speed Sensor Circuit
• P0730 – Incorrect Gear Ratio

ABS & Chassis Codes

• 00283 – ABS Wheel Speed Sensor Front Left (G47)
• 00532 – Supply Voltage B+ Low
• 01435 – Brake Pressure Sensor Fault

Network Communication Codes

• 01314 – Engine Control Module: No Communication
• 01336 – Comfort System Data Bus Fault
• 01317 – Instrument Cluster Communication Fault

Body & Comfort System Codes

• 00955 – Key 1 Adaptation Limit Exceeded
• 01559 – Driver Door Lock Actuator Fault
• 01134 – Alarm Horn Fault

The manual also includes hundreds of additional Audi-specific fault codes, factory wiring diagrams, diagnostic flowcharts, component testing procedures, control module adaptations, and complete repair instructions.

Who Is This Manual For?

• Audi dealership technicians
• Independent European vehicle repair workshops
• Professional automotive mechanics
• Fleet maintenance departments
• Automotive engineering students
• Experienced DIY Audi owners

Whether you’re performing scheduled maintenance, diagnosing engine or electrical faults, servicing the V8, W12, or TDI engines, repairing the quattro drivetrain, troubleshooting the suspension or braking systems, maintaining the factory audio and climate control systems, or carrying out major mechanical repairs, this manual provides the factory-approved procedures required to service and repair the 2002 Audi A8 (D2).