Repair and Diagnosis

You are viewing the "split tree" of links. The tree is cut off at a certain depth to keep the page loading fast, but you may have to click multiple links to get to the content you want.
View "full tree" with all links on one page (will load slowly, but easier to use ctrl-f to search all pages)

Expand All (for easy ctrl-f) Collapse All

• Quick Lookups
  • Common Specs & Procedures
    • Common Specifications And Procedures
  • Electrical Component Locations
    • E-Tron Gt - Component Locations
  • Fluids
  • Technical Bulletins
    • Safety Recalls
    • Technical Service Bulletins
  • Tire Fitment
  • Wiring Diagrams
    • OEM Wiring Diagrams 12 V Sockets
    • OEM Wiring Diagrams A/C System , (KH5)
    • OEM Wiring Diagrams Access And Start Authorization
    • OEM Wiring Diagrams Adaptive Cruise Control , (8T4),(8T5)
    • OEM Wiring Diagrams Airbag Systems For LHD Vehicles , (L0L)
    • OEM Wiring Diagrams All-Wheel Drive , (GH3)
    • OEM Wiring Diagrams Anti-Theft Alarm System , (7AL)
    • OEM Wiring Diagrams Assistance Systems , (JX1)
    • OEM Wiring Diagrams Brake System
    • OEM Wiring Diagrams Cell Phone System , (9ZE),(9ZV)
    • OEM Wiring Diagrams Center Console Switch
    • OEM Wiring Diagrams Communication , (7I4)
    • OEM Wiring Diagrams Communication , (IW3),(IW6)
    • OEM Wiring Diagrams Convenience System
    • OEM Wiring Diagrams Driver Assistance Systems Front Camera
    • OEM Wiring Diagrams Driver Door Control Modules , (L0L)
    • OEM Wiring Diagrams Driver Seat , (3L4),(Q1G)
    • OEM Wiring Diagrams Driver Seat , (3L5),(Q1G)
    • OEM Wiring Diagrams Driver Seat , (Q1J),(Q2J)
    • OEM Wiring Diagrams Electric Drive System For Front Axle
    • OEM Wiring Diagrams Electric Drive System For Rear Axle
    • OEM Wiring Diagrams Electric Drive System, Engine/Motor Control Module (From June 2021)
    • OEM Wiring Diagrams Electric Drive System, Engine/Motor Control Module (From November 2020)
    • OEM Wiring Diagrams Engine Sound Generator , (Gm3),(Gm4)
    • OEM Wiring Diagrams External Usage Interface , (B36)
    • OEM Wiring Diagrams Front Passenger Door Control Modules , (L0L)
    • OEM Wiring Diagrams Front Passenger Seat , (Q1G)
    • OEM Wiring Diagrams Front Passenger Seat , (Q1J),(Q2J)
    • OEM Wiring Diagrams Fuse Assignment, Engine/Motor Compartment
    • OEM Wiring Diagrams Fuse Assignment, Luggage Compartment
    • OEM Wiring Diagrams Fuse Assignment, Passenger Compartment
    • OEM Wiring Diagrams Garage Door Opener , (VC2)
    • OEM Wiring Diagrams Headlamp , (8IY)
    • OEM Wiring Diagrams Headlamp , (8IZ)
    • OEM Wiring Diagrams High-Voltage Battery Charging , (Es6)
    • OEM Wiring Diagrams High-Voltage Battery Charging , (Es7)
    • OEM Wiring Diagrams High-Voltage Battery System , (J9I)
    • OEM Wiring Diagrams High-Voltage Battery System , (J9K)
    • OEM Wiring Diagrams High-Voltage System
    • OEM Wiring Diagrams Horn
    • OEM Wiring Diagrams Instrument Cluster
    • OEM Wiring Diagrams Interior Lighting , (QQ0)
    • OEM Wiring Diagrams Interior Lighting , (QQ2)
    • OEM Wiring Diagrams Interior Rearview Mirror , (4L6),(4L7)
    • OEM Wiring Diagrams Lane Change Assistance , (7Y1)
    • OEM Wiring Diagrams Level Control System (From June 2021)
    • OEM Wiring Diagrams Level Control System (From November 2020)
    • OEM Wiring Diagrams Light Switch
    • OEM Wiring Diagrams MMI (Information Electronics 1)
    • OEM Wiring Diagrams Network Data Bus
    • OEM Wiring Diagrams Network Data Bus (FLEXRAY Bus)
    • OEM Wiring Diagrams Night Vision System , (9R1)
    • OEM Wiring Diagrams Parking Distance Control , (7X2)
    • OEM Wiring Diagrams Parking Distance Control , (7X5),(9X0)
    • OEM Wiring Diagrams Peripheral Camera , (KA6)
    • OEM Wiring Diagrams Power Rear Lid
    • OEM Wiring Diagrams Power Rear Spoiler
    • OEM Wiring Diagrams Power Steering, Electromechanical
    • OEM Wiring Diagrams Rain/Light Recognition Sensor
    • OEM Wiring Diagrams Rear Axle Steering, Electromechanical , (0N5)
    • OEM Wiring Diagrams Rear Window Defogger
    • OEM Wiring Diagrams Rearview Camera (Rear Assist) , (KA2)
    • OEM Wiring Diagrams Seat Heating, Front , (4A3),(4A4)
    • OEM Wiring Diagrams Seat Ventilation , (4D3),(4D5)
    • OEM Wiring Diagrams Seats, Heated Rear , (4A4)
    • OEM Wiring Diagrams Sound System , (9VD)
    • OEM Wiring Diagrams Sound System , (9VS)
    • OEM Wiring Diagrams Steering Column Adjustment , (2C7)
    • OEM Wiring Diagrams Steering Wheel
    • OEM Wiring Diagrams Tail Lamps , (Av2)
    • OEM Wiring Diagrams Thermal Management
    • OEM Wiring Diagrams Tire Pressure Monitoring , (7K3),(7K4)
    • OEM Wiring Diagrams USB Connections For Data Transfer
    • OEM Wiring Diagrams Windshield Projection Head Up Display , (KS1)
    • OEM Wiring Diagrams Wiper And Washer System, Windshield
    • Using lemon2025'S System Wiring Diagrams
    • Wires
    • Wiring
• Accessories & Equipment
  • Anti-Theft Systems
    • Front Doors, Central Locking System
    • Interior Lights, Lamps And Switches
    • Interior Lights, Switches
  • Collision/Avoidance
    • Driver Assistance Systems
    • General, Technical Data (Communication)
    • General, Technical Data (Driver Assistance Systems)
  • Communication Devices
    • General, Technical Data (Communication)
  • Cruise Control Systems
    • Battery And Generator
    • General, Technical Data (Communication)
    • General, Technical Data (Driver Assistance Systems)
  • Drivers Assistance Systems - ADAS
    • General, Technical Data (Communication)
    • General, Technical Data (Driver Assistance Systems)
  • Entertainment Systems
    • Communication
  • Exterior Lights
    • Exterior Lights, Lamps And Switches
    • Exterior Lights, Switches
  • Gauges & Instrument Panels
    • Instruments
    • Interior Equipment
  • Infotainment
    • Communication
    • General, Technical Data (Communication)
    • General, Technical Data (Driver Assistance Systems)
  • Interior/Exterior Trim
    • Exterior Equipment
    • General, Technical Data (Body Exterior)
    • General, Technical Data (Body Interior)
    • Interior Equipment
    • Interior Trim
  • Mirrors
    • Exterior Equipment
    • General, Technical Data (Body Exterior)
    • General, Technical Data (Body Interior)
    • Interior Equipment
  • Seats
    • General, Technical Data (Seats)
    • Seat Frames
    • Seat Upholstery, Covers
  • Warning Systems
    • Driver Assistance Systems
    • General, Technical Data (Communication)
    • General, Technical Data (Driver Assistance Systems)
  • Window Motors & Regulators
    • Front Doors, Central Locking System
    • Glass, Window Regulators
    • Rear Doors
  • Wiper/Washer Systems
    • Windshield Washer System
    • Wiper/Washer Systems
• Body & Frame
  • Door Locks
    • Front Doors, Central Locking System
    • Interior Lights, Lamps And Switches
    • Interior Lights, Switches
  • 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
    • General, Technical Data (Body Exterior)
    • General, Technical Data (Body Interior)
    • Interior Equipment
    • Interior Trim
  • Mirrors
    • Exterior Equipment
    • General, Technical Data (Body Exterior)
    • General, Technical Data (Body Interior)
    • Interior Equipment
  • Seats
    • General, Technical Data (Seats)
    • Seat Frames
    • Seat Upholstery, Covers
  • Windows
    • Front Doors, Central Locking System
    • Glass, Window Regulators
    • Rear Doors
• Brakes
  • Anti-Lock Brakes
    • Antilock Brake System
    • General, Technical Data (Brake System)
  • Mechanical - Hydraulic
    • Brake System - Hydraulic Components
    • Brake System - Mechanical Components
    • General, Technical Data (Brake System)
  • Parking Brake System
    • Brake System - Mechanical Components
    • General, Technical Data (Brake System)
  • Traction Control
    • Antilock Brake System
    • General, Technical Data (Brake System)
• Drivelines & Axles
  • Axle Shafts
    • Final Drive, Differential (Front Transmission 0MG)
    • Final Drive, Differential (Rear Transmission 0ME)
  • Differentials & Drive Axles
    • Final Drive, Differential (Front Transmission 0MG)
    • Final Drive, Differential (Rear Transmission 0ME)
• Electrical
  • Body Electrical
    • General, Technical Data (Body Interior)
    • General, Technical Data (Electrical Equipment)
    • Wires
    • Wiring
  • Charging Systems
    • Battery And Generator
    • Battery, Starter, Generator, Cruise Control
    • General, Technical Data (Electrical Equipment)
    • General, Technical Data (High-Voltage Battery)
    • General, Technical Data (High-Voltage Vehicle General Information)
  • E-Tron Gt - Component Locations
  • Fuses & Circuit Breakers
    • Wires
    • Wiring
  • Gauges
    • Instruments
    • Interior Equipment
  • Motors, Switches, Relays
    • General, Technical Data (Body Interior)
    • General, Technical Data (Electrical Equipment)
    • Wires
    • Wiring
  • Starter
    • Battery And Generator
  • Wiring Diagrams
    • OEM Wiring Diagrams 12 V Sockets
    • OEM Wiring Diagrams A/C System , (KH5)
    • OEM Wiring Diagrams Access And Start Authorization
    • OEM Wiring Diagrams Adaptive Cruise Control , (8T4),(8T5)
    • OEM Wiring Diagrams Airbag Systems For LHD Vehicles , (L0L)
    • OEM Wiring Diagrams All-Wheel Drive , (GH3)
    • OEM Wiring Diagrams Anti-Theft Alarm System , (7AL)
    • OEM Wiring Diagrams Assistance Systems , (JX1)
    • OEM Wiring Diagrams Brake System
    • OEM Wiring Diagrams Cell Phone System , (9ZE),(9ZV)
    • OEM Wiring Diagrams Center Console Switch
    • OEM Wiring Diagrams Communication , (7I4)
    • OEM Wiring Diagrams Communication , (IW3),(IW6)
    • OEM Wiring Diagrams Convenience System
    • OEM Wiring Diagrams Driver Assistance Systems Front Camera
    • OEM Wiring Diagrams Driver Door Control Modules , (L0L)
    • OEM Wiring Diagrams Driver Seat , (3L4),(Q1G)
    • OEM Wiring Diagrams Driver Seat , (3L5),(Q1G)
    • OEM Wiring Diagrams Driver Seat , (Q1J),(Q2J)
    • OEM Wiring Diagrams Electric Drive System For Front Axle
    • OEM Wiring Diagrams Electric Drive System For Rear Axle
    • OEM Wiring Diagrams Electric Drive System, Engine/Motor Control Module (From June 2021)
    • OEM Wiring Diagrams Electric Drive System, Engine/Motor Control Module (From November 2020)
    • OEM Wiring Diagrams Engine Sound Generator , (Gm3),(Gm4)
    • OEM Wiring Diagrams External Usage Interface , (B36)
    • OEM Wiring Diagrams Front Passenger Door Control Modules , (L0L)
    • OEM Wiring Diagrams Front Passenger Seat , (Q1G)
    • OEM Wiring Diagrams Front Passenger Seat , (Q1J),(Q2J)
    • OEM Wiring Diagrams Fuse Assignment, Engine/Motor Compartment
    • OEM Wiring Diagrams Fuse Assignment, Luggage Compartment
    • OEM Wiring Diagrams Fuse Assignment, Passenger Compartment
    • OEM Wiring Diagrams Garage Door Opener , (VC2)
    • OEM Wiring Diagrams Headlamp , (8IY)
    • OEM Wiring Diagrams Headlamp , (8IZ)
    • OEM Wiring Diagrams High-Voltage Battery Charging , (Es6)
    • OEM Wiring Diagrams High-Voltage Battery Charging , (Es7)
    • OEM Wiring Diagrams High-Voltage Battery System , (J9I)
    • OEM Wiring Diagrams High-Voltage Battery System , (J9K)
    • OEM Wiring Diagrams High-Voltage System
    • OEM Wiring Diagrams Horn
    • OEM Wiring Diagrams Instrument Cluster
    • OEM Wiring Diagrams Interior Lighting , (QQ0)
    • OEM Wiring Diagrams Interior Lighting , (QQ2)
    • OEM Wiring Diagrams Interior Rearview Mirror , (4L6),(4L7)
    • OEM Wiring Diagrams Lane Change Assistance , (7Y1)
    • OEM Wiring Diagrams Level Control System (From June 2021)
    • OEM Wiring Diagrams Level Control System (From November 2020)
    • OEM Wiring Diagrams Light Switch
    • OEM Wiring Diagrams MMI (Information Electronics 1)
    • OEM Wiring Diagrams Network Data Bus
    • OEM Wiring Diagrams Network Data Bus (FLEXRAY Bus)
    • OEM Wiring Diagrams Night Vision System , (9R1)
    • OEM Wiring Diagrams Parking Distance Control , (7X2)
    • OEM Wiring Diagrams Parking Distance Control , (7X5),(9X0)
    • OEM Wiring Diagrams Peripheral Camera , (KA6)
    • OEM Wiring Diagrams Power Rear Lid
    • OEM Wiring Diagrams Power Rear Spoiler
    • OEM Wiring Diagrams Power Steering, Electromechanical
    • OEM Wiring Diagrams Rain/Light Recognition Sensor
    • OEM Wiring Diagrams Rear Axle Steering, Electromechanical , (0N5)
    • OEM Wiring Diagrams Rear Window Defogger
    • OEM Wiring Diagrams Rearview Camera (Rear Assist) , (KA2)
    • OEM Wiring Diagrams Seat Heating, Front , (4A3),(4A4)
    • OEM Wiring Diagrams Seat Ventilation , (4D3),(4D5)
    • OEM Wiring Diagrams Seats, Heated Rear , (4A4)
    • OEM Wiring Diagrams Sound System , (9VD)
    • OEM Wiring Diagrams Sound System , (9VS)
    • OEM Wiring Diagrams Steering Column Adjustment , (2C7)
    • OEM Wiring Diagrams Steering Wheel
    • OEM Wiring Diagrams Tail Lamps , (Av2)
    • OEM Wiring Diagrams Thermal Management
    • OEM Wiring Diagrams Tire Pressure Monitoring , (7K3),(7K4)
    • OEM Wiring Diagrams USB Connections For Data Transfer
    • OEM Wiring Diagrams Windshield Projection Head Up Display , (KS1)
    • OEM Wiring Diagrams Wiper And Washer System, Windshield
    • Using lemon2025'S System Wiring Diagrams
    • Wires
    • Wiring
• Engine Mechanical
  • Exhaust
    • General Information
    • General, Technical Data (Safety Precautions And Repair Information)
  • Mechanical
    • General Information
    • General, Technical Data (Safety Precautions And Repair Information)
  • Starter
    • Battery And Generator
• Engine Performance
  • Emissions
    • Emission Control Abbreviations
    • State Emission Standards - Diesel
    • State Emission Standards - Gas
• 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
  • 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
  • Metric Conversions
    • Engine Displacement Conversion Table - ECAT
    • Metric Conversions
  • OEM General Information
    • 2023 AUDI Service
    • General Information
    • General, Technical Data (Safety Precautions And Repair Information)
  • Maintenance Reminder Light (Reset Procedures)
  • Specifications Index
    • Common Specifications And 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)
  • A/C Compressor
    • General, Technical Data (Heating, Ventilation And Air Conditioning)
    • General, Technical Data (Refrigerant R1234YF Servicing)
  • General Servicing
    • General, Technical Data (Heating, Ventilation And Air Conditioning)
    • General, Technical Data (Refrigerant R1234YF Servicing)
  • HVAC Control Systems
    • Air Conditioning (Heating, Ventilation And Air Conditioning)
    • Air Conditioning (Refrigerant R1234YF Servicing - Refrigerant Circuit)
    • Air Conditioning (Refrigerant R1234YF Servicing - Tools & Testing Equipment)
    • General, Technical Data (Heating, Ventilation And Air Conditioning)
    • General, Technical Data (Refrigerant R1234YF Servicing)
• Hybrid/Electric Powertrain
  • Battery Management Systems
    • Electric Drive (Electric Drive Motor 0EG)
    • Electric Drive (High-Voltage Battery)
    • General Information
    • General, Technical Data (Electric Drive Motor 0EG)
    • General, Technical Data (High-Voltage Battery)
    • General, Technical Data (High-Voltage Vehicle General Information)
    • General, Technical Data (Safety Precautions And Repair Information)
  • Cooling Systems
    • Cooling System (Electric Drive Motor 0EG)
  • Electric Converters and Controllers
    • Electric Drive (Electric Drive Motor 0EG)
    • Electric Drive (High-Voltage Battery)
    • General, Technical Data (Electric Drive Motor 0EG)
  • Electric Motor Systems
    • Cooling System (Electric Drive Motor 0EG)
    • Electric Drive (Electric Drive Motor 0EG)
    • Electric Drive (High-Voltage Battery)
    • General, Technical Data (Electric Drive Motor 0EG)
    • General, Technical Data (Front Transmission 0MG)
    • General, Technical Data (High-Voltage Battery)
    • General, Technical Data (High-Voltage Vehicle General Information)
    • General, Technical Data (Rear Transmission 0ME)
    • Motor Assembly
  • Testing and Diagnosis
    • Electric Drive (Electric Drive Motor 0EG)
    • Electric Drive (High-Voltage Battery)
• Maintenance
  • Maintenance Reminder Light (Reset Procedures)
• Restraints
  • Air Bag, SRS
    • Passenger Protection, Airbags, Seat Belts
  • Passive Restraints
    • Passenger Protection, Airbags, Seat Belts
• Steering
  • Steering Column
    • General, Technical Data (Suspension, Wheels, Steering)
    • Steering
  • Steering Gear
    • General, Technical Data (Suspension, Wheels, Steering)
    • Steering
  • 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
  • Wheel Alignment
    • Wheels, Tires, Wheel Alignment (Wheel & Tire Guide)
    • Wheels, Tires, Wheel Alignment (Wheel/Tire Combinations)
    • Wheels, Tires, Wheel Alignment (Wheels & Tires)
  • Wheels & Tire System
    • General, Technical Data (Suspension, Wheels, Steering)
• Transmission
  • Automatic Trans
    • Controls, Housing (Front Transmission 0MG)
    • Controls, Housing (Rear Transmission 0ME)
    • General, Technical Data (Front Transmission 0MG)
    • General, Technical Data (Rear Transmission 0ME)
  • Transmission Control Systems
    • Controls, Housing (Front Transmission 0MG)
    • Controls, Housing (Rear Transmission 0ME)
    • General, Technical Data (Front Transmission 0MG)
    • General, Technical Data (Rear Transmission 0ME)
• External Pages