Repair and Diagnosis

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• Quick Lookups
  • Common Specs & Procedures
    • Common Specifications & Procedures (Coupe)
  • DTC Index
    • DTC Index [CYMC] (P000A - U1103) [Coupe]
    • DTC Index [CYMC] [Coupe]
    • Generic Scan Tool [CYMC] [Coupe] [Transmission DTC Tables (2018 - 2020) & Diagnostic Procedures]
  • Electrical Component Locations
    • A5 QUATTRO - Component Locations
  • Fluids
  • Technical Bulletins
    • Safety Recalls
    • Technical Service Bulletins
  • Tire Fitment
  • Wiring Diagrams
    • System Wiring Diagrams
    • Using lemon2025'S System Wiring Diagrams
• Accessories & Equipment
  • Anti-Theft Systems
    • Front Doors, Central Locking System [Coupe]
    • Interior Lights, Lamps And Switches [Coupe]
    • Interior Lights, Switches [Coupe]
  • Collision/Avoidance
    • Driver Assistance Systems Front Camera
    • Driver Assistance Systems Front Camera (Calibration)
    • Dynamic Steering System
    • Lane Change Assistance System
    • Parallel Parking Assist System
    • Parking Aid System
    • Peripheral Camera System
    • Rearview Camera System
    • Wheels, Tires, Wheel Alignment (Suspension, Wheels, Steering) [Coupe]
  • Communication Devices
    • General, Technical Data (Communication) [Coupe]
  • Cruise Control Systems
    • Adaptive Cruise Control ((Acc) Adjustment)
    • Adaptive Cruise Control (Acc) System
    • Charging System (Battery, Starter, Generator) And Cruise Control [Coupe] (Battery - Adaptive Cruise Control)
    • Charging System (Battery, Starter, Generator) And Cruise Control [Coupe] (Battery - Generator)
    • Wheels, Tires, Wheel Alignment (Suspension, Wheels, Steering) [Coupe]
  • Drivers Assistance Systems - ADAS
    • Driver Assistance Systems Front Camera
    • Driver Assistance Systems Front Camera (Calibration)
    • Dynamic Steering System
    • Lane Change Assistance System
    • Parallel Parking Assist System
    • Parking Aid System
    • Peripheral Camera System
    • Rearview Camera System
    • Wheels, Tires, Wheel Alignment (Suspension, Wheels, Steering) [Coupe]
  • Entertainment Systems
    • Communication [Coupe]
  • Exterior Lights
    • Exterior Lights, Lamps And Switches [Coupe]
    • Exterior Lights, Switches [Coupe]
  • Gauges & Instrument Panels
    • Instruments [Coupe]
  • Infotainment
    • Communication (Retrofitting) [Coupe]
    • Communication [Coupe]
  • Interior/Exterior Trim
    • Exterior Equipment [Coupe]
    • General, Technical Data (Body Exterior) [Coupe]
    • Interior Equipment [Coupe]
    • Interior Trim [Coupe]
  • Interior/Illumination Lights
    • Interior Lights, Lamps And Switches [Coupe]
    • Interior Lights, Switches [Coupe]
  • Mirrors
    • Exterior Equipment [Coupe]
  • Seats
    • Interior Equipment [Coupe]
    • Seat Frames [Coupe]
    • Seat Upholstery, Covers [Coupe]
  • Warning Systems
    • Communication [Coupe]
  • Window Motors & Regulators
    • Exterior Equipment [Coupe]
    • Front Doors, Central Locking System [Coupe]
    • Glass, Window Regulators [Coupe]
    • Rear Doors [Coupe]
  • Wiper/Washer Systems
    • Windshield Washer System [Coupe]
    • Wiper/Washer Systems [Coupe]
  • Wiring System (Data Link Connectors, Pwr Dist., Grnd Dist.)
    • Wires [Coupe]
    • Wiring [Coupe]
• Body & Frame
  • Door Locks
    • Front Doors, Central Locking System [Coupe]
    • Interior Lights, Lamps And Switches [Coupe]
    • Interior Lights, Switches [Coupe]
  • Exterior Body Panels
    • Body Front [Coupe]
    • Bumpers [Coupe]
    • Exterior Equipment [Coupe]
    • Front Doors, Central Locking System [Coupe]
    • General, Technical Data (Body Exterior) [Coupe]
    • Hood, Lids [Coupe]
    • Rear Doors [Coupe]
  • Exterior/Interior Trim
    • Exterior Equipment [Coupe]
    • General, Technical Data (Body Exterior) [Coupe]
    • Interior Equipment [Coupe]
    • Interior Trim [Coupe]
  • Mirrors
    • Exterior Equipment [Coupe]
  • Seats
    • Interior Equipment [Coupe]
    • Seat Frames [Coupe]
    • Seat Upholstery, Covers [Coupe]
  • Sun Roof/T-Top/Convertible Top
    • Sunroof [Coupe]
  • Windows
    • Exterior Equipment [Coupe]
    • Front Doors, Central Locking System [Coupe]
    • Glass, Window Regulators [Coupe]
    • Rear Doors [Coupe]
• Brakes
  • Anti-Lock Brakes
    • Antilock Brake System [Coupe]
  • Mechanical - Hydraulic
    • General, Technical Data (Brake System) [Coupe]
    • Hydraulic Components (Brake System) [Coupe]
    • Mechanical Components (Brake System) [Coupe]
  • Parking Brake System
    • General, Technical Data (Brake System) [Coupe]
    • Mechanical Components (Brake System) [Coupe]
  • Traction Control
    • Antilock Brake System [Coupe]
• Drivelines & Axles
  • Axle Shafts
    • Final Drive, Differential (0CJ, 0CK, 0CL, 0DN, 0DP)
    • Front Suspension [Coupe]
    • Rear Suspension [Coupe]
  • Differentials & Drive Axles
    • Final Drive, Differential (0CJ, 0CK, 0CL, 0DN, 0DP)
    • Final Drive, Differential (Servicing - 0CJ, 0CL, 0CK, 0DN, 0DP)
    • Gears, Shafts (0CK,0CJA,0CLA,0DN,0DPA,0HLA,0DK,0DKA)
• Electrical
  • Body Electrical
    • General, Technical Data (Electrical System) [Coupe]
    • Wires [Coupe]
    • Wiring [Coupe]
  • Charging Systems
    • Charging System (Battery, Starter, Generator) And Cruise Control [Coupe] (Battery - Adaptive Cruise Control)
    • Charging System (Battery, Starter, Generator) And Cruise Control [Coupe] (Battery - Generator)
    • General, Technical Data (Electrical System) [Coupe]
  • A5 QUATTRO - Component Locations
  • Fuses & Circuit Breakers
    • Wires [Coupe]
    • Wiring [Coupe]
  • Gauges
    • Instruments [Coupe]
  • Motors, Switches, Relays
    • General, Technical Data (Electrical System) [Coupe]
    • Wires [Coupe]
    • Wiring [Coupe]
  • Wiring Diagrams
    • System Wiring Diagrams
    • Using lemon2025'S System Wiring Diagrams
• Engine Mechanical
  • Blowers, Superchargers & Turbochargers
    • Turbocharger, Supercharger [CYMC,CYRB,CYRC,CWPB,DDWA,DKNA,DKWA,DLHB,DDWB] [Coupe]
    • Turbocharger, Supercharger [CYMC] [Coupe]
  • Cooling Fan
    • Cooling System [CYMC,CYRB,CYRC,CWPB,DDWA,DKNA,DKWA,DLHB,DDWB] [Coupe]
    • Cooling System [CYMC] [Coupe]
  • Cooling System (Mechanical)
    • Cooling System [CYMC,CYRB,CYRC,CWPB,DDWA,DKNA,DKWA,DLHB,DDWB] [Coupe]
    • Cooling System [CYMC] [Coupe]
    • General, Technical Data [CYMC] [Coupe]
  • Exhaust
    • Exhaust System, Emission Controls [CYMC,CYRB,CYRC,CWPB,DDWA,DKNA,DKWA,DLHB,DDWB] [Coupe]
    • Exhaust System, Emission Controls [CYMC] [Coupe]
    • General, Technical Data (Body Interior) [Coupe]
    • General, Technical Data [CYMC,CYRB,CYRC,CWPB,DDWA,DKNA,DKWA,DLHB,DDWB] [Coupe]
    • General, Technical Data [CYMC] [Coupe]
    • Wiring Diagram [CYMC] [Coupe/Convertible]
  • Fuel System
    • Fuel Supply (EVAP Leak Test) [Coupe]
    • Fuel Supply [CYMC] [Coupe]
    • General, Technical Data (Body Interior) [Coupe]
    • General, Technical Data (Fuel Supply System) [Coupe]
    • General, Technical Data [CYMC,CYRB,CYRC,CWPB,DDWA,DKNA,DKWA,DLHB,DDWB] [Coupe]
    • General, Technical Data [CYMC] [Coupe]
    • MULTIPORT Fuel Injection (CYMC,CYRB,CYRC,CWPB,DDWA,DKNA,DKWA,DLHB,DDWB) [Coupe]
    • MULTIPORT Fuel Injection [CYMC] [Coupe]
    • Wiring Diagram [CYMC] [Coupe/Convertible]
  • Lubrication System
    • General, Technical Data (Body Interior) [Coupe]
    • General, Technical Data (Oil Gauge Tester T40178 Service Values) [Coupe]
    • General, Technical Data [CYMC,CYRB,CYRC,CWPB,DDWA,DKNA,DKWA,DLHB,DDWB] [Coupe]
    • General, Technical Data [CYMC] [Coupe]
    • Lubrication [CYMC] (1 Of 2) [Coupe]
    • Lubrication [CYMC] (2 Of 2) [Coupe]
    • Wiring Diagram [CYMC] [Coupe/Convertible]
  • Mechanical
    • Crankshaft, Cylinder Block [CYMC,CYRB,CYRC,CWPB,DDWA,DKNA,DKWA,DLHB,DDWB] [Coupe]
    • Crankshaft, Cylinder Block [CYMC] [Coupe]
    • Cylinder Head, VALVETRAIN [CYMC,CYRB,CYRC,CWPB,DDWA,DKNA,DKWA,DLHB,DDWB] [Coupe]
    • Cylinder Head, VALVETRAIN [CYMC] [Coupe]
    • Engine Assembly [CYMC,CYRB,CYRC,CWPB,DDWA,DKNA,DKWA,DLHB,DDWB] [Coupe]
    • Engine Assembly [CYMC] [Coupe]
    • General, Technical Data (Body Interior) [Coupe]
    • General, Technical Data [CYMC,CYRB,CYRC,CWPB,DDWA,DKNA,DKWA,DLHB,DDWB] [Coupe]
    • General, Technical Data [CYMC] [Coupe]
    • Wiring Diagram [CYMC] [Coupe/Convertible]
• Engine Performance
  • Emissions
    • Emission Applications
    • Emission Control Abbreviations
    • State Emission Standards - Diesel
    • State Emission Standards - Gas
  • Engine Control Systems
    • Generic Scan Tool (General Information & Description And Operation) [CYMC] (1 Of 2) [Coupe]
    • Generic Scan Tool (General Information & Description And Operation) [CYMC] (2 Of 2) [Coupe]
    • Generic Scan Tool [CYMC] - Engine DTC Tables (Engine Control Module --, 2017 My, A4 Only) [Coupe]
    • Generic Scan Tool [CYMC] - Engine DTC Tables (Engine Control Module --, 2018 My, A4 W/Automatic Transmission And All A5 Models) [Coupe]
    • Generic Scan Tool [CYMC] [Coupe] [Engine DTC Tables (2019) & Diagnostic Procedures]
    • Generic Scan Tool [CYMC] [Coupe] [Transmission DTC Tables (2017 - 2019) & Diagnostic Procedures]
    • Generic Scan Tool [CYMC] [Coupe] [Transmission DTC Tables (2018 - 2020) & Diagnostic Procedures]
  • Fuel Delivery
    • Fuel Supply (EVAP Leak Test) [Coupe]
    • Fuel Supply [CYMC] [Coupe]
    • General, Technical Data (Body Interior) [Coupe]
    • General, Technical Data (Fuel Supply System) [Coupe]
    • General, Technical Data [CYMC,CYRB,CYRC,CWPB,DDWA,DKNA,DKWA,DLHB,DDWB] [Coupe]
    • General, Technical Data [CYMC] [Coupe]
    • MULTIPORT Fuel Injection (CYMC,CYRB,CYRC,CWPB,DDWA,DKNA,DKWA,DLHB,DDWB) [Coupe]
    • MULTIPORT Fuel Injection [CYMC] [Coupe]
    • Wiring Diagram [CYMC] [Coupe/Convertible]
  • Ignition System
    • General, Technical Data (Body Interior) [Coupe]
    • General, Technical Data [CYMC,CYRB,CYRC,CWPB,DDWA,DKNA,DKWA,DLHB,DDWB] [Coupe]
    • General, Technical Data [CYMC] [Coupe]
    • Ignition/Glow Plug System [CYMC,CYRB,CYRC,CWPB,DDWA,DKNA,DKWA,DLHB,DDWB] [Coupe]
    • Ignition/Glow Plug System [CYMC] [Coupe]
    • Wiring Diagram [CYMC] [Coupe/Convertible]
  • Remove, Overhaul & Install
    • General, Technical Data (Body Interior) [Coupe]
    • General, Technical Data [CYMC,CYRB,CYRC,CWPB,DDWA,DKNA,DKWA,DLHB,DDWB] [Coupe]
    • Wiring Diagram [CYMC] [Coupe/Convertible]
  • Specifications
    • Firing Order & Cylinder Identification
  • System
    • Generic Scan Tool (General Information & Description And Operation) [CYMC] (1 Of 2) [Coupe]
    • Generic Scan Tool (General Information & Description And Operation) [CYMC] (2 Of 2) [Coupe]
    • Generic Scan Tool [CYMC] - Engine DTC Tables (Engine Control Module --, 2017 My, A4 Only) [Coupe]
    • Generic Scan Tool [CYMC] - Engine DTC Tables (Engine Control Module --, 2018 My, A4 W/Automatic Transmission And All A5 Models) [Coupe]
    • Generic Scan Tool [CYMC] [Coupe] [Engine DTC Tables (2019) & Diagnostic Procedures]
    • Generic Scan Tool [CYMC] [Coupe] [Engine DTC Tables]
    • Generic Scan Tool [CYMC] [Coupe] [Transmission DTC Tables (2017 - 2019) & Diagnostic Procedures]
    • Generic Scan Tool [CYMC] [Coupe] [Transmission DTC Tables (2018 - 2020) & Diagnostic Procedures]
  • Testing & Diagnosis
    • Generic Scan Tool (General Information & Description And Operation) [CYMC] (1 Of 2) [Coupe]
    • Generic Scan Tool (General Information & Description And Operation) [CYMC] (2 Of 2) [Coupe]
    • Generic Scan Tool [CYMC] - Engine DTC Tables (Engine Control Module --, 2017 My, A4 Only) [Coupe]
    • Generic Scan Tool [CYMC] - Engine DTC Tables (Engine Control Module --, 2018 My, A4 W/Automatic Transmission And All A5 Models) [Coupe]
    • Generic Scan Tool [CYMC] [Coupe] [Engine DTC Tables (2019) & Diagnostic Procedures]
    • Generic Scan Tool [CYMC] [Coupe] [Engine DTC Tables]
    • Generic Scan Tool [CYMC] [Coupe] [Transmission DTC Tables (2017 - 2019) & Diagnostic Procedures]
    • Generic Scan Tool [CYMC] [Coupe] [Transmission DTC Tables (2018 - 2020) & Diagnostic Procedures]
  • Tune-Up
    • General, Technical Data (Body Interior) [Coupe]
    • General, Technical Data [CYMC,CYRB,CYRC,CWPB,DDWA,DKNA,DKWA,DLHB,DDWB] [Coupe]
    • General, Technical Data [CYMC] [Coupe]
    • Ignition/Glow Plug System [CYMC,CYRB,CYRC,CWPB,DDWA,DKNA,DKWA,DLHB,DDWB] [Coupe]
    • Ignition/Glow Plug System [CYMC] [Coupe]
    • Wiring Diagram [CYMC] [Coupe/Convertible]
• 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
    • DTC Index [CYMC] (P000A - U1103) [Coupe]
    • DTC Index [CYMC] [Coupe]
    • Generic Scan Tool [CYMC] [Coupe] [Transmission DTC Tables (2018 - 2020) & Diagnostic Procedures]
  • 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
  • Hoist/Jack
    • General Information [Coupe]
  • Identification
    • CANADIAN Model Cross-Reference
    • General (Transmission), Technical Data
    • General (Transmission), Technical Data (General Repair Information)
    • General Information [Coupe]
    • General, Technical Data [CYMC] [Coupe]
  • Metric Conversions
    • Engine Displacement Conversion Table - ECAT
    • Metric Conversions
  • OEM General Information
    • Automatic Stop/Start Disable
    • General Information [Coupe]
  • Reset Procedures
    • General Information [Coupe]
    • Maintenance Reminder Light (Reset Procedures)
    • Tire Pressure Monitor Systems
  • Specifications Index
    • Common Specifications & Procedures (Coupe)
  • Steering
    • Map - Steering, Suspension, Wheel Alignment, Wheels & Tires
    • Wheel Alignment Theory & Operation - General Information
  • Towing
    • General Information [Coupe]
  • Traction Control Disable Procedures
  • Trouble Shooting - Manual Transmission - General Information
• Heating, Ventilation & A/C (HVAC)
  • A/C Compressor
    • Air Conditioning (Refrigerant R1234YF Servicing) (Tools & Equipment) [Coupe]
    • Air Conditioning (Refrigerant R134A Servicing) (General Information) [Coupe]
    • Air Conditioning (Refrigerant R134A Servicing) (Refrigerant Circuit Components) [Coupe]
    • Air Conditioning [Coupe]
  • General Servicing
    • Air Conditioning (Refrigerant R1234YF Servicing) (Tools & Equipment) [Coupe]
    • Air Conditioning (Refrigerant R134A Servicing) (General Information) [Coupe]
    • Air Conditioning (Refrigerant R134A Servicing) (Refrigerant Circuit Components) [Coupe]
    • Air Conditioning [Coupe]
    • General, Technical Data (HVAC) [Coupe]
    • General, Technical Data (Refrigerant R1234YF Servicing) [Coupe]
  • HVAC Control Systems
    • Air Conditioning (Refrigerant R1234YF Servicing) (Refrigerant Circuit) [Coupe]
    • Air Conditioning (Refrigerant R1234YF Servicing) (Tools & Equipment) [Coupe]
    • Air Conditioning (Refrigerant R134A Servicing) (General Information) [Coupe]
    • Air Conditioning (Refrigerant R134A Servicing) (Refrigerant Circuit Components) [Coupe]
    • Air Conditioning [Coupe]
    • General, Technical Data (HVAC) [Coupe]
    • General, Technical Data (Refrigerant R1234YF Servicing) [Coupe]
    • Heating [Coupe]
• Maintenance
  • Procedures
    • General Information [Coupe]
    • Maintenance Reminder Light (Reset Procedures)
    • Maintenance, Diagnosis (Fluid Capacity Tables - 2019) [Coupe]
    • Maintenance, Diagnosis (Genuine Oils For Warranty) [Coupe]
    • Maintenance, Diagnosis (My 2019 AUDI Maintenance Schedule) [Coupe]
• Restraints
  • Air Bag, SRS
    • Passenger Protection, Airbags, Seat Belts [Coupe]
  • Passive Restraints
    • Interior Equipment [Coupe]
    • Passenger Protection, Airbags, Seat Belts [Coupe]
• Steering
  • Electronic Steering
    • Wheels, Tires, Wheel Alignment (Suspension, Wheels, Steering) [Coupe]
  • Manual Steering
    • Steering [Coupe]
  • Power Steering
    • Steering [Coupe]
  • Steering Column
    • Steering [Coupe]
  • Steering Gear
    • General, Technical Data (Suspension) [Coupe]
    • Steering [Coupe]
  • Steering Linkage
    • Steering [Coupe]
• Suspension
  • Electronic Suspension
    • Self-Leveling Suspension [Coupe]
  • Front Suspension
    • Front Suspension [Coupe]
    • General, Technical Data (Suspension) [Coupe]
  • Rear Suspension
    • General, Technical Data (Suspension) [Coupe]
    • Rear Suspension [Coupe]
  • Wheel Alignment
    • AUDI Wheel Alignment Specifications - A5 QUATTRO
    • General, Technical Data (Suspension) [Coupe]
    • Wheels, Tires, Wheel Alignment (Suspension, Wheels, Steering) [Coupe]
  • Wheels & Tire System
    • General, Technical Data (Suspension) [Coupe]
    • Wheels, Tires, Wheel Alignment (Suspension, Wheels, Steering) [Coupe]
    • Wheels, Tires, Wheel Alignment (Wheel And Tire Guide) [Coupe]
• Transmission
  • Automatic Trans
    • Gears, Shafts (0CK,0CJA,0CLA,0DN,0DPA,0HLA,0DK,0DKA)
    • Gears, Shafts (Servicing - 7-Speed Dual Clutch Transmission 0CJ, 0CL, 0CK, 0DN, 0DP)
    • General (Transmission), Technical Data
    • General (Transmission), Technical Data (General Repair Information)
  • Clutch [7-Speed Dual Clutch Transmission 0CJ, 0CK, 0CL, 0DN, 0DP]
  • Manual Trans
    • Final Drive, Differential (0CJ, 0CK, 0CL, 0DN, 0DP)
    • Gears, Shafts (0CK,0CJA,0CLA,0DN,0DPA,0HLA,0DK,0DKA)
    • Gears, Shafts (Servicing - 7-Speed Dual Clutch Transmission 0CJ, 0CL, 0CK, 0DN, 0DP)
  • Transmission Control Systems
    • Controls, Housing (7-Speed Dual Clutch Transmission 0CJ, 0CK, 0CL, 0DN, 0DP)
    • Controls, Housing [Servicing - 7-Speed Dual Clutch Transmission 0CJ, 0CL, 0CK, 0DN, 0DP]
    • Final Drive, Differential (Servicing - 0CJ, 0CL, 0CK, 0DN, 0DP)
    • Generic Scan Tool (General Information & Description And Operation) [CYMC] (1 Of 2) [Coupe]
    • Generic Scan Tool (General Information & Description And Operation) [CYMC] (2 Of 2) [Coupe]
    • Generic Scan Tool [CYMC] - Engine DTC Tables (Engine Control Module --, 2017 My, A4 Only) [Coupe]
    • Generic Scan Tool [CYMC] - Engine DTC Tables (Engine Control Module --, 2018 My, A4 W/Automatic Transmission And All A5 Models) [Coupe]
    • Generic Scan Tool [CYMC] [Coupe] [Engine DTC Tables (2019) & Diagnostic Procedures]
    • Generic Scan Tool [CYMC] [Coupe] [Transmission DTC Tables (2017 - 2019) & Diagnostic Procedures]
    • Generic Scan Tool [CYMC] [Coupe] [Transmission DTC Tables (2018 - 2020) & Diagnostic Procedures]
• External Pages