Repair and Diagnosis

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• Quick Lookups
  • Common Specs & Procedures
  • DTC Index
    • Generic Scan Tool (DMSA,DNVB) (2022) - Engine DTC Tables (P0420 - P0315)
    • Generic Scan Tool (DMSA,DNVB) (2022) - Engine DTC Tables (U01B4 - P0562) & Transmission DTC Tables
    • Generic Scan Tool (DMSA,DNVB) (2022) (1 Of 2)
    • Generic Scan Tool (DSPA,DMSA,DNVB) (2023) (2 Of 4)
  • Electrical Component Locations
    • RS 3 - Component Locations
  • Fluids
  • Technical Bulletins
    • Safety Recalls
    • Technical Service Bulletins
  • Tire Fitment
  • Wiring Diagrams
    • OEM Wiring Diagram
    • System Wiring Diagrams
    • Using lemon2025'S System Wiring Diagrams
• Accessories & Equipment
  • Communication Devices
    • Communication (1 Of 2)
    • Communication (2 Of 2)
    • General, Technical Data Communication
  • Cruise Control Systems
    • Assistance Systems
    • Charging System (Battery, Starter, Generator), Cruise Control
  • Drivers Assistance Systems - ADAS
    • Exterior Lights, Switches
    • General, Technical Data Driver Assistance Systems
  • Exterior Lights
    • Exterior Lights, Lamps And Switches
    • Exterior Lights, Switches
  • Gauges & Instrument Panels
    • Instruments
  • Headlights
    • Exterior Lights, Switches
  • Interior/Exterior Trim
    • Exterior Equipment
    • Interior Equipment
    • Interior Trim
  • Interior/Illumination Lights
    • Interior Lights, Lamps And Switches
    • Interior Lights, Switches
  • Mirrors
    • Exterior Equipment
    • Interior Equipment
  • Seats
    • General, Technical Data Seats
    • Seat Frames
    • Seat Upholstery, Covers
  • Warning Systems
    • Assistance Systems
  • Window Motors & Regulators
    • Glass, Window Regulators
  • Wiper/Washer Systems
    • Windshield Washer System
    • Wiper/Washer Systems
• Body & Frame
  • Exterior Body Panels
    • Body Front
    • Bumpers
    • Exterior Equipment
    • Front Doors, Central Locking System
    • General, Technical Data Body Exterior
    • Hood, Lids
    • Rear Doors
  • Exterior/Interior Trim
    • Exterior Equipment
    • Interior Equipment
    • Interior Trim
  • Mirrors
    • Exterior Equipment
    • Interior Equipment
  • Seats
    • General, Technical Data Seats
    • Seat Frames
    • Seat Upholstery, Covers
  • Sun Roof/T-Top/Convertible Top
    • Sunroof
  • Windows
    • Glass, Window Regulators
• Brakes
  • Anti-Lock Brakes
    • Antilock Brake System
    • General, Technical Data Brake System
  • Mechanical - Hydraulic
    • General, Technical Data Brake System
    • Hydraulic Components (Brake System)
    • Mechanical Components (Brake System)
  • Traction Control
    • Antilock Brake System
    • General, Technical Data Brake System
• Drivelines & Axles
  • Differentials & Drive Axles
    • Final Drive, Differential
    • Rear Suspension
• Electrical
  • Body Electrical
    • Wires
    • Wiring
  • Charging Systems
    • Charging System (Battery, Starter, Generator), Cruise Control
    • Charging System (Starter, Generator) And Cruise Control
    • General, Technical Data Electrical Equipment
  • RS 3 - Component Locations
  • Gauges
    • Instruments
  • Motors, Switches, Relays
    • Wires
    • Wiring
  • Starter
    • Charging System (Battery, Starter, Generator), Cruise Control
    • Charging System (Starter, Generator) And Cruise Control
  • Wiring Diagrams
    • OEM Wiring Diagram
    • System Wiring Diagrams
    • Using lemon2025'S System Wiring Diagrams
• Engine Mechanical
  • Blowers, Superchargers & Turbochargers
    • Turbocharger, Supercharger
  • Cooling Fan
    • Cooling System
  • Cooling System (Mechanical)
  • Exhaust
    • Exhaust System, Emission Controls
    • Technical Data High-Voltage Vehicle General Information
  • Fuel System
    • Fuel Supply
    • General, Technical Data Fuel Supply System
    • MULTIPORT Fuel Injection
  • Lubrication System
    • General, Technical Data Oil Gauge Tester T40178 Service Values
    • Lubrication
  • Mechanical
    • General, Technical Data Oil Gauge Tester T40178 Service Values
    • Technical Data High-Voltage Vehicle General Information
  • Starter
    • Charging System (Battery, Starter, Generator), Cruise Control
    • Charging System (Starter, Generator) And Cruise Control
• Engine Performance
  • Emissions
    • Emission Applications
    • Emission Control Abbreviations
    • State Emission Standards - Diesel
    • State Emission Standards - Gas
  • Engine Control Systems
    • Generic Scan Tool (DMSA,DNVB) (2022) - Engine DTC Tables (P0420 - P0315)
    • Generic Scan Tool (DMSA,DNVB) (2022) - Engine DTC Tables (U01B4 - P0562) & Transmission DTC Tables
    • Generic Scan Tool (DMSA,DNVB) (2022) (1 Of 2)
    • Generic Scan Tool (DSPA,DMSA,DNVB) (2023) (2 Of 4)
  • Fuel Delivery
    • Fuel Supply
    • General, Technical Data Fuel Supply System
    • MULTIPORT Fuel Injection
  • Ignition System
    • Ignition/Glow Plug System
  • Specifications
    • Firing Order & Cylinder Identification
  • System
    • Generic Scan Tool (DMSA,DNVB) (2022) - Engine DTC Tables (P0420 - P0315)
    • Generic Scan Tool (DMSA,DNVB) (2022) - Engine DTC Tables (U01B4 - P0562) & Transmission DTC Tables
    • Generic Scan Tool (DMSA,DNVB) (2022) (1 Of 2)
    • Generic Scan Tool (DSPA,DMSA,DNVB) (2023) (2 Of 4)
  • Testing & Diagnosis
    • Generic Scan Tool (DMSA,DNVB) (2022) - Engine DTC Tables (P0420 - P0315)
    • Generic Scan Tool (DMSA,DNVB) (2022) - Engine DTC Tables (U01B4 - P0562) & Transmission DTC Tables
    • Generic Scan Tool (DMSA,DNVB) (2022) (1 Of 2)
    • Generic Scan Tool (DSPA,DMSA,DNVB) (2023) (2 Of 4)
  • Tune-Up
    • Ignition/Glow Plug System
• General Information
  • Abbreviations
    • Commonly Used Abbreviations - General Information
    • Emission Control Abbreviations
  • Basic Trouble Shooting
    • Basic Trouble Shooting - General Information
    • Commonly Used Abbreviations - General Information
    • Emission Control Abbreviations
    • Engine Performance - Trouble Shooting - General Information
  • Brakes
    • Anti-Lock Brake Safety Precautions - General Information
    • Map - Brake Systems
    • Map - Routine Inspection Reference Guide
  • Check Lists
    • Symptom Check List Worksheet - General Information
  • Driveline/Axles
    • Drive Axle Noise Diagnosis - General Information
    • Gear Tooth Contact Patterns - General Information
    • Map - Drive Train & Transmission
    • Trouble Shooting - Clutches - General Information
  • DTC Index
    • Generic Scan Tool (DMSA,DNVB) (2022) - Engine DTC Tables (P0420 - P0315)
    • Generic Scan Tool (DMSA,DNVB) (2022) - Engine DTC Tables (U01B4 - P0562) & Transmission DTC Tables
    • Generic Scan Tool (DMSA,DNVB) (2022) (1 Of 2)
    • Generic Scan Tool (DSPA,DMSA,DNVB) (2023) (2 Of 4)
  • Electrical
    • Map - Electrical Systems
    • Using lemon2025'S System Wiring Diagrams
  • Engine
    • Engine Overhaul Procedures - General Information
    • General Cooling System Service - General Information
  • Engine Performance
    • Electrostatic Discharge Warning - General Information
    • Engine Performance Diagnostic Routine Outline - General Information
    • Engine Performance Safety Precautions
    • Map - Engine Performance & Maintenance
    • Parasitic Load Explanation & Test Procedures - General Information
    • State Emission Standards - Diesel
    • State Emission Standards - Gas
    • Waveforms - Injector Pattern Tutorial - General Information
  • Map - Exhaust Systems
  • Heating, Ventilation & A/C (HVAC)
    • Map - Heating, Ventilation, & Air Conditioning
  • Identification
    • CANADIAN Model Cross-Reference
    • General Information
  • Metric Conversions
    • Engine Displacement Conversion Table - ECAT
    • Metric Conversions
  • OEM General Information
  • Maintenance Reminder Light (Reset Procedures)
  • Specifications Index
    • Common Specs & Procedures
  • Steering
    • Map - Steering, Suspension, Wheel Alignment, Wheels & Tires
    • Wheel Alignment Theory & Operation - General Information
  • Traction Control Disable Procedures
  • Trouble Shooting - Manual Transmission - General Information
• Heating, Ventilation & A/C (HVAC)
  • General Servicing
    • General, Technical Data Refrigerant R1234YF Servicing
  • HVAC Control Systems
    • Air Conditioning (Precautions, Overviews, Removing And Installing)
    • Air Conditioning (Refrigerant R1234YF Servicing) (Refrigerant Circuit)
    • Air Conditioning (Refrigerant R1234YF Servicing) (Tools & Testing Equipment)
    • Air Conditioning (Refrigerant R134A Servicing) (Pressures, Checking)
    • Air Conditioning (Refrigerant R134A Servicing) (Refrigerant Circuit Components)
    • Air Conditioning (Refrigerant R134A Servicing) (Refrigerant Circuit)
    • General, Technical Data Heating, Ventilation And Air Conditioning
    • General, Technical Data Refrigerant R1234YF Servicing
    • Heating, Ventilation
• Hybrid/Electric Powertrain
  • Testing and Diagnosis
    • Technical Data High-Voltage Vehicle General Information
• Maintenance
  • Procedures
    • 2022 AUDI Service
    • 2023 AUDI Service
    • General Information
    • Genuine Oils For Warranty
    • Maintenance Reminder Light (Reset Procedures)
• Restraints
  • Air Bag, SRS
    • General, Technical Data Body Interior
    • Passenger Protection, Airbags, Seat Belts
  • Passive Restraints
    • General, Technical Data Body Interior
    • Passenger Protection, Airbags, Seat Belts
  • Restraints Control Systems
    • General, Technical Data Body Interior
  • Seat Belts
    • General, Technical Data Body Interior
• Steering
  • Steering Column
  • Steering Gear
  • Steering Linkage
• Suspension
  • Electronic Suspension
    • Self-Leveling Suspension
  • Front Suspension
    • Front Suspension
    • General, Technical Data Suspension, Wheels, Steering
  • Rear Suspension
    • General, Technical Data Suspension, Wheels, Steering
    • Rear Suspension
  • Wheels, Tires, Wheel Alignment
  • Wheels & Tire System
    • Wheels, Tires, Wheel Alignment (Wheel And Tire Guide General Information)
    • Wheels, Tires, Wheel Alignment (Wheel And Tire Guide) (1 Of 2)
    • Wheels, Tires, Wheel Alignment (Wheel And Tire Guide) (2 Of 2)
• Transmission
  • Automatic Trans
    • Controls, Housing
    • Gears, Shafts
    • General, Technical Data 7-Speed Dual Clutch Transmission 0GC
  • Clutch
    • Clutch
    • General, Technical Data 7-Speed Dual Clutch Transmission 0GC
  • Manual Trans
    • Final Drive, Differential
    • Gears, Shafts
  • Transmission Control Systems
    • Controls, Housing
• External Pages