Repair and Diagnosis

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• Quick Lookups
  • Common Specs & Procedures
  • DTC Index
    • DTC Index (1 Of 2) (Coupe)
    • DTC Index (2 Of 2) (Coupe)
    • DTC Index [CAED, CAEB] (Coupe)
  • Electrical Component Locations
    • A5 - Component Locations
    • Electrical Component Locations & Connector End Views (Convertible) -- A5
    • General, Technical Data (Electrical) (Coupe)
  • Fluids
  • Technical Bulletins
    • Safety Recalls
    • Tech Tips
    • Technical Service Bulletins
  • Tire Fitment
  • Wiring Diagrams
    • Electrical Component Locations & Connector End Views (Convertible) -- A5
    • General, Technical Data (Electrical) (Coupe)
    • OEM Connector End Views (Coupe)
    • System Wiring Diagrams
    • Using lemon2025'S System Wiring Diagrams
    • Wiring (Cabriolet)
    • Wiring Diagram [CADA, CAEB, CAED, CDNB, CDNC, CDZA, CFKA, CPMA, CPMB] (Coupe)
    • Wiring Diagram [CAEA, CAEB, CDNB, CDNC] (Coupe)
• Accessories & Equipment
  • Anti-Theft Systems
    • Front Doors, Central Locking System (Coupe)
    • Immobilizer And Trailer Hitch - General Information (Coupe)
    • Interior Lights, Lamps And Switches (Coupe)
    • Interior Lights, Switches (Coupe)
    • On Board Diagnostic (System Description - Access/Start Authorization) (Coupe)
    • On Board Diagnostic (System Description - Adaptive Cruise Control) (Coupe)
    • On Board Diagnostic (System Description - AUDI Infotainment) (Coupe)
    • On Board Diagnostic (System Description - Infotainment And Navigation) (Coupe)
  • Body Interior
    • General, Technical Data (Body Exterior) (Coupe)
  • Collision/Avoidance
    • Wheels, Tires, Wheel Alignment (Suspension, Wheels, Steering) (General Information) (Coupe)
    • Wheels, Tires, Wheel Alignment (Suspension, Wheels, Steering) (TPMS - Lane Assist) (Coupe)
  • Communication Devices
    • On Board Diagnostic (System Description - Access/Start Authorization) (Coupe)
    • On Board Diagnostic (System Description - Adaptive Cruise Control) (Coupe)
    • On Board Diagnostic (System Description - AUDI Infotainment) (Coupe)
    • On Board Diagnostic (System Description - Infotainment And Navigation) (Coupe)
  • Cruise Control Systems
    • Charging System (Battery, Starter, Generator) & Cruise Control (Battery & Charging) (Coupe)
    • Charging System (Battery, Starter, Generator) & Cruise Control (Start/Stop System) (Coupe)
    • Wheels, Tires, Wheel Alignment (Suspension, Wheels, Steering) (General Information) (Coupe)
    • Wheels, Tires, Wheel Alignment (Suspension, Wheels, Steering) (TPMS - Lane Assist) (Coupe)
  • Drivers Assistance Systems - ADAS
    • Wheels, Tires, Wheel Alignment (Suspension, Wheels, Steering) (General Information) (Coupe)
    • Wheels, Tires, Wheel Alignment (Suspension, Wheels, Steering) (TPMS - Lane Assist) (Coupe)
  • Entertainment Systems
    • Communication (Infotainment Systems) (Coupe)
    • Communication (Telephone - Internet Access) (Coupe)
    • Immobilizer And Trailer Hitch - General Information (Coupe)
    • Interior Lights, Lamps And Switches (Coupe)
  • Exterior Lights
    • Exterior Lights, Lamps And Switches (Coupe)
    • Exterior Lights, Switches (Coupe)
    • General, Technical Data (Body Exterior) (Coupe)
  • Gauges & Instrument Panels
    • Instruments (Coupe)
  • Infotainment
    • Communication (Infotainment Systems) (Coupe)
    • Communication (Retrofitting) (Coupe)
    • Communication (Telephone - Internet Access) (Coupe)
    • Immobilizer And Trailer Hitch - General Information (Coupe)
    • Interior Lights, Lamps And Switches (Coupe)
  • Interior/Exterior Trim
    • Exterior Equipment (Coupe)
    • Interior Equipment (Coupe)
    • Interior Trim (Coupe)
  • Interior/Illumination Lights
    • Immobilizer And Trailer Hitch - General Information (Coupe)
    • Interior Lights, Lamps And Switches (Coupe)
    • Interior Lights, Switches (Coupe)
  • Mirrors
    • Exterior Equipment (Coupe)
  • Seats
    • Interior Equipment (Coupe)
    • SEAT FRAMES (1 Of 2) (COUPE)
    • SEAT FRAMES (2 Of 2) (COUPE)
    • Seat Upholstery, Covers (Coupe)
  • Warning Systems
    • Communication (Telephone - Internet Access) (Coupe)
  • Window Motors & Regulators
    • Exterior Equipment (Coupe)
    • Front Doors, Central Locking System (Coupe)
    • Glass, Window Regulators (Coupe)
  • Wiper/Washer Systems
    • Windshield Washer System (Coupe)
    • Wiper/Washer Systems (Coupe)
  • Wiring System (Data Link Connectors, Pwr Dist., Grnd Dist.)
    • General, Technical Data (Body Exterior) (Coupe)
    • Wires (Coupe)
    • Wiring (Cabriolet)
    • Wiring (Coupe)
• Body & Frame
  • Body, Cab Control Systems
    • General, Technical Data (Body Exterior) (Coupe)
  • Door Locks
    • Front Doors, Central Locking System (Coupe)
    • Immobilizer And Trailer Hitch - General Information (Coupe)
    • Interior Lights, Lamps And Switches (Coupe)
    • Interior Lights, Switches (Coupe)
    • On Board Diagnostic (System Description - Access/Start Authorization) (Coupe)
    • On Board Diagnostic (System Description - Adaptive Cruise Control) (Coupe)
    • On Board Diagnostic (System Description - AUDI Infotainment) (Coupe)
    • On Board Diagnostic (System Description - Infotainment And Navigation) (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)
  • Exterior/Interior Trim
    • Exterior Equipment (Coupe)
    • Interior Equipment (Coupe)
    • Interior Trim (Coupe)
  • Mirrors
    • Exterior Equipment (Coupe)
  • Seats
    • Interior Equipment (Coupe)
    • SEAT FRAMES (1 Of 2) (COUPE)
    • SEAT FRAMES (2 Of 2) (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)
• Brakes
  • Anti-Lock Brakes
    • Antilock Brake System (Coupe)
    • General, Technical Data - Brake System (Coupe)
  • Brakes Control Systems
    • General, Technical Data - Brake System (Coupe)
    • General, Technical Data (Brakes) (Coupe)
  • Mechanical - Hydraulic
    • General, Technical Data (Brakes) (Coupe)
    • Hydraulic Components - Brake System (Coupe)
    • Mechanical Components - Brake System (Coupe)
  • Parking Brake System
    • General, Technical Data - Brake System (Coupe)
    • General, Technical Data (Brakes) (Coupe)
    • Mechanical Components - Brake System (Coupe)
  • Traction Control
    • Antilock Brake System (Coupe)
    • General, Technical Data - Brake System (Coupe)
• Drivelines & Axles
  • Axle Shafts
    • Front Suspension (Front Axle - Drive Axle) (Coupe)
    • Front Suspension (Removal & Installation) (Coupe)
  • Differentials & Drive Axles
    • Final Drive, Differential - Rear Final Drive 0BF & 0BE (Coupe)
    • Front Suspension (Front Axle - Drive Axle) (Coupe)
    • Front Suspension (Removal & Installation) (Coupe)
    • General, Technical Data - Rear Final Drive 0BD (Coupe)
    • Rear Final Drive 0BD (Coupe)
  • Driveshaft & Universal Joints
    • Final Drive, Differential - Rear Final Drive 0BF & 0BE (Coupe)
    • Rear Final Drive 0BD (Coupe)
• Electrical
  • Body Electrical
    • General, Technical Data (Electrical) (Coupe)
    • OEM Connector End Views (Coupe)
    • Wires (Coupe)
    • Wiring (Cabriolet)
    • Wiring (Coupe)
  • Charging Systems
    • Charging System (Battery, Starter, Generator) & Cruise Control (Battery & Charging) (Coupe)
    • Charging System (Battery, Starter, Generator) & Cruise Control (Start/Stop System) (Coupe)
    • General, Technical Data (Electrical) (Coupe)
  • Component Locations
    • A5 - Component Locations
    • Electrical Component Locations & Connector End Views (Convertible) -- A5
    • General, Technical Data (Electrical) (Coupe)
  • Fuses & Circuit Breakers
    • Fuse And Relay Diagrams (Convertible) -- A5
    • Fuses & Circuit Breakers (Coupe)
    • General, Technical Data (Electrical) (Coupe)
    • Wires (Coupe)
    • Wiring (Cabriolet)
    • Wiring (Coupe)
  • Gauges
    • Instruments (Coupe)
  • Motors, Switches, Relays
    • General, Technical Data (Electrical) (Coupe)
    • OEM Connector End Views (Coupe)
    • Wires (Coupe)
    • Wiring (Cabriolet)
    • Wiring (Coupe)
  • Starter
    • Charging System (Battery, Starter, Generator) & Cruise Control (Battery & Charging) (Coupe)
    • Charging System (Battery, Starter, Generator) & Cruise Control (Start/Stop System) (Coupe)
    • General, Technical Data [CABB, CABA, CABD, CAEA, CAEB, CDHB, CDNB, CDNC, CDHA, CDZA, CADA, CCUA, CFKA, CPMA, CAED, CPMB, CHJA, CPEA] (Coupe)
  • Wiring Diagrams
    • Electrical Component Locations & Connector End Views (Convertible) -- A5
    • General, Technical Data (Electrical) (Coupe)
    • OEM Connector End Views (Coupe)
    • System Wiring Diagrams
    • Using lemon2025'S System Wiring Diagrams
    • Wiring (Cabriolet)
    • Wiring Diagram [CADA, CAEB, CAED, CDNB, CDNC, CDZA, CFKA, CPMA, CPMB] (Coupe)
    • Wiring Diagram [CAEA, CAEB, CDNB, CDNC] (Coupe)
• Engine Mechanical
  • Blowers, Superchargers & Turbochargers
    • Turbocharger, Supercharger (Servicing) [CABB, CABA, CABD, CAEA, CAEB, CDHB, CDNB, CDNC, CDHA, CDZA, CADA, CCUA, CFKA, CPMA, CAED, CPMB, CHJA, CPEA] (Coupe)
    • Turbocharger, Supercharger [CABB, CABA, CABD, CAEA, CAEB, CDHB, CDNB, CDNC, CDHA, CDZA, CADA, CCUA, CFKA, CPMA, CAED, CPMB] (Coupe)
  • Cooling Fan
    • Cooling System (Servicing) [CABB, CABA, CABD, CAEA, CAEB, CDHB, CDNB, CDNC, CDHA, CDZA, CADA, CCUA, CFKA, CPMA, CAED, CPMB, CHJA, CPEA] (Coupe)
    • Cooling System [CABB, CABA, CABD, CAEA, CAEB, CDHB, CDNB, CDNC, CDHA, CDZA, CADA, CCUA, CFKA, CPMA, CAED, CPMB] (Coupe)
    • General, Technical Data [CABB, CABA, CABD, CAEA, CAEB, CDHB, CDNB, CDNC, CDHA, CDZA, CADA, CCUA, CFKA, CPMA, CAED, CPMB, CHJA, CPEA] (Coupe)
  • Cooling System (Mechanical)
    • Cooling System (Servicing) [CABB, CABA, CABD, CAEA, CAEB, CDHB, CDNB, CDNC, CDHA, CDZA, CADA, CCUA, CFKA, CPMA, CAED, CPMB, CHJA, CPEA] (Coupe)
    • Cooling System [CABB, CABA, CABD, CAEA, CAEB, CDHB, CDNB, CDNC, CDHA, CDZA, CADA, CCUA, CFKA, CPMA, CAED, CPMB] (Coupe)
    • General, Technical Data [CABB, CABA, CABD, CAEA, CAEB, CDHB, CDNB, CDNC, CDHA, CDZA, CADA, CCUA, CFKA, CPMA, CAED, CPMB, CHJA, CPEA] (Coupe)
  • Exhaust
    • Exhaust System, Emission Controls (Servicing) [CABB, CABA, CABD, CAEA, CAEB, CDHB, CDNB, CDNC, CDHA, CDZA, CADA, CCUA, CFKA, CPMA, CAED, CPMB, CHJA, CPEA] (Coupe)
    • Exhaust System, Emission Controls [CABB, CABA, CABD, CAEA, CAEB, CDHB, CDNB, CDNC, CDHA, CDZA, CADA, CCUA, CFKA, CPMA, CAED, CPMB] (Coupe)
    • General, Technical Data (Oil Gauge Tester T40178 Service Values) (Coupe)
    • General, Technical Data [CABB, CABA, CABD, CAEA, CAEB, CDHB, CDNB, CDNC, CDHA, CDZA, CADA, CCUA, CFKA, CPMA, CAED, CPMB, CHJA, CPEA] (Coupe)
    • On Board Diagnostic (System Description - Access/Start Authorization) (Coupe)
    • On Board Diagnostic (System Description - Adaptive Cruise Control) (Coupe)
    • On Board Diagnostic (System Description - AUDI Infotainment) (Coupe)
    • On Board Diagnostic (System Description - Infotainment And Navigation) (Coupe)
    • Technical Data (Fuel Supply System) (Coupe)
  • Fuel System
    • Fuel Supply (Coupe)
    • Fuel Supply (Fuel System EVAP Leak Test) (Coupe)
    • General, Technical Data (Oil Gauge Tester T40178 Service Values) (Coupe)
    • General, Technical Data [CABB, CABA, CABD, CAEA, CAEB, CDHB, CDNB, CDNC, CDHA, CDZA, CADA, CCUA, CFKA, CPMA, CAED, CPMB, CHJA, CPEA] (Coupe)
    • MULTIPORT Fuel Injection (Servicing) [CABB, CABA, CABD, CAEA, CAEB, CDHB, CDNB, CDNC, CDHA, CDZA, CADA, CCUA, CFKA, CPMA, CAED, CPMB, CHJA, CPEA] (Coupe)
    • MULTIPORT Fuel Injection [CABB, CABA, CABD, CAEA, CAEB, CDHB, CDNB, CDNC, CDHA, CDZA, CADA, CCUA, CFKA, CPMA, CAED, CPMB] (Coupe)
    • MULTIPORT Fuel Injection [CAEB, CPMA] (Coupe)
    • On Board Diagnostic (System Description - Access/Start Authorization) (Coupe)
    • On Board Diagnostic (System Description - Adaptive Cruise Control) (Coupe)
    • On Board Diagnostic (System Description - AUDI Infotainment) (Coupe)
    • On Board Diagnostic (System Description - Infotainment And Navigation) (Coupe)
    • Technical Data (Fuel Supply System) (Coupe)
  • Lubrication System
    • General, Technical Data (Oil Gauge Tester T40178 Service Values) (Coupe)
    • General, Technical Data [CABB, CABA, CABD, CAEA, CAEB, CDHB, CDNB, CDNC, CDHA, CDZA, CADA, CCUA, CFKA, CPMA, CAED, CPMB, CHJA, CPEA] (Coupe)
    • Lubrication (Servicing) [CABB, CABA, CABD, CAEA, CAEB, CDHB, CDNB, CDNC, CDHA, CDZA, CADA, CCUA, CFKA, CPMA, CAED, CPMB, CHJA, CPEA] (Coupe)
    • Lubrication [CABB, CABA, CABD, CAEA, CAEB, CDHB, CDNB, CDNC, CDHA, CDZA, CADA, CCUA, CFKA, CPMA, CAED, CPMB] (Coupe)
    • Technical Data (Fuel Supply System) (Coupe)
  • Mechanical
    • Crankshaft, Cylinder Block (Servicing) [CABB, CABA, CABD, CAEA, CAEB, CDHB, CDNB, CDNC, CDHA, CDZA, CADA, CCUA, CFKA, CPMA, CAED, CPMB, CHJA, CPEA] (Coupe)
    • Crankshaft, Cylinder Block [CABB, CABA, CABD, CAEA, CAEB, CDHB, CDNB, CDNC, CDHA, CDZA, CADA, CCUA, CFKA, CPMA, CAED, CPMB] (Coupe)
    • Cylinder Head, VALVETRAIN (Servicing) [CABB, CABA, CABD, CAEA, CAEB, CDHB, CDNB, CDNC, CDHA, CDZA, CADA, CCUA, CFKA, CPMA, CAED, CPMB, CHJA, CPEA] (Coupe)
    • Cylinder Head, VALVETRAIN [CABB, CABA, CABD, CAEA, CAEB, CDHB, CDNB, CDNC, CDHA, CDZA, CADA, CCUA, CFKA, CPMA, CAED, CPMB] (Coupe)
    • Engine Assembly [CABB, CABA, CABD, CAEA, CAEB, CDHB, CDNB, CDNC, CDHA, CDZA, CADA, CCUA, CFKA, CPMA, CAED, CPMB, CHJA, CPEA] (Coupe)
    • General, Technical Data (Oil Gauge Tester T40178 Service Values) (Coupe)
    • General, Technical Data [CABB, CABA, CABD, CAEA, CAEB, CDHB, CDNB, CDNC, CDHA, CDZA, CADA, CCUA, CFKA, CPMA, CAED, CPMB, CHJA, CPEA] (Coupe)
    • Technical Data (Fuel Supply System) (Coupe)
  • Starter
    • Charging System (Battery, Starter, Generator) & Cruise Control (Battery & Charging) (Coupe)
    • Charging System (Battery, Starter, Generator) & Cruise Control (Start/Stop System) (Coupe)
    • General, Technical Data [CABB, CABA, CABD, CAEA, CAEB, CDHB, CDNB, CDNC, CDHA, CDZA, CADA, CCUA, CFKA, CPMA, CAED, CPMB, CHJA, CPEA] (Coupe)
• Engine Performance
  • Emissions
    • Emission Applications
    • Emission Control Abbreviations
    • State Emission Standards - Diesel
    • State Emission Standards - Gas
  • Engine Control Systems
    • GENERIC SCAN TOOL [CAEB] (1 Of 2) (COUPE)
    • GENERIC SCAN TOOL [CAEB] (2 Of 2) (COUPE)
    • Generic Scan Tool [CAEB] (Engine DTC Table) (Coupe)
    • Generic Scan Tool [CAED, CAEB] (Diagnostic Procedures) (Coupe)
    • Generic Scan Tool [CAED, CAEB] (Engine & Transmission DTC Tables) (Coupe)
    • Generic Scan Tool [CAED, CAEB] (Engine DTC Table) (Coupe)
    • Generic Scan Tool [CAED, CAEB] (Engine DTC Tables) (Coupe)
    • Generic Scan Tool [CAED, CAEB] (General Information) (Coupe)
  • Fuel Delivery
    • Fuel Supply (Coupe)
    • Fuel Supply (Fuel System EVAP Leak Test) (Coupe)
    • General, Technical Data (Oil Gauge Tester T40178 Service Values) (Coupe)
    • General, Technical Data [CABB, CABA, CABD, CAEA, CAEB, CDHB, CDNB, CDNC, CDHA, CDZA, CADA, CCUA, CFKA, CPMA, CAED, CPMB, CHJA, CPEA] (Coupe)
    • MULTIPORT Fuel Injection (Servicing) [CABB, CABA, CABD, CAEA, CAEB, CDHB, CDNB, CDNC, CDHA, CDZA, CADA, CCUA, CFKA, CPMA, CAED, CPMB, CHJA, CPEA] (Coupe)
    • MULTIPORT Fuel Injection [CABB, CABA, CABD, CAEA, CAEB, CDHB, CDNB, CDNC, CDHA, CDZA, CADA, CCUA, CFKA, CPMA, CAED, CPMB] (Coupe)
    • MULTIPORT Fuel Injection [CAEB, CPMA] (Coupe)
    • On Board Diagnostic (System Description - Access/Start Authorization) (Coupe)
    • On Board Diagnostic (System Description - Adaptive Cruise Control) (Coupe)
    • On Board Diagnostic (System Description - AUDI Infotainment) (Coupe)
    • On Board Diagnostic (System Description - Infotainment And Navigation) (Coupe)
    • Technical Data (Fuel Supply System) (Coupe)
  • Ignition System
    • General, Technical Data (Oil Gauge Tester T40178 Service Values) (Coupe)
    • General, Technical Data [CABB, CABA, CABD, CAEA, CAEB, CDHB, CDNB, CDNC, CDHA, CDZA, CADA, CCUA, CFKA, CPMA, CAED, CPMB, CHJA, CPEA] (Coupe)
    • Ignition/Glow Plug System (Servicing) [CABB, CABA, CABD, CAEA, CAEB, CDHB, CDNB, CDNC, CDHA, CDZA, CADA, CCUA, CFKA, CPMA, CAED, CPMB, CHJA, CPEA] (Coupe)
    • Ignition/Glow Plug System [CAEB, CPMA] (Coupe)
    • On Board Diagnostic (System Description - Access/Start Authorization) (Coupe)
    • On Board Diagnostic (System Description - Adaptive Cruise Control) (Coupe)
    • On Board Diagnostic (System Description - AUDI Infotainment) (Coupe)
    • On Board Diagnostic (System Description - Infotainment And Navigation) (Coupe)
    • Technical Data (Fuel Supply System) (Coupe)
  • Remove, Overhaul & Install
    • General, Technical Data (Oil Gauge Tester T40178 Service Values) (Coupe)
    • Technical Data (Fuel Supply System) (Coupe)
  • Specifications
    • Firing Order & Cylinder Identification
  • System
    • General, Technical Data [CABB, CABA, CABD, CAEA, CAEB, CDHB, CDNB, CDNC, CDHA, CDZA, CADA, CCUA, CFKA, CPMA, CAED, CPMB, CHJA, CPEA] (Coupe)
    • GENERIC SCAN TOOL [CAEB] (1 Of 2) (COUPE)
    • GENERIC SCAN TOOL [CAEB] (2 Of 2) (COUPE)
    • Generic Scan Tool [CAEB] (Engine DTC Table) (Coupe)
    • Generic Scan Tool [CAED, CAEB] (Diagnostic Procedures) (Coupe)
    • Generic Scan Tool [CAED, CAEB] (Engine & Transmission DTC Tables) (Coupe)
    • Generic Scan Tool [CAED, CAEB] (Engine DTC Table) (Coupe)
    • Generic Scan Tool [CAED, CAEB] (Engine DTC Tables) (Coupe)
    • Generic Scan Tool [CAED, CAEB] (General Information) (Coupe)
    • On Board Diagnostic (System Description - Access/Start Authorization) (Coupe)
    • On Board Diagnostic (System Description - Adaptive Cruise Control) (Coupe)
    • On Board Diagnostic (System Description - AUDI Infotainment) (Coupe)
    • On Board Diagnostic (System Description - Infotainment And Navigation) (Coupe)
  • Testing & Diagnosis
    • General, Technical Data [CABB, CABA, CABD, CAEA, CAEB, CDHB, CDNB, CDNC, CDHA, CDZA, CADA, CCUA, CFKA, CPMA, CAED, CPMB, CHJA, CPEA] (Coupe)
    • GENERIC SCAN TOOL [CAEB] (1 Of 2) (COUPE)
    • GENERIC SCAN TOOL [CAEB] (2 Of 2) (COUPE)
    • Generic Scan Tool [CAEB] (Engine DTC Table) (Coupe)
    • Generic Scan Tool [CAED, CAEB] (Diagnostic Procedures) (Coupe)
    • Generic Scan Tool [CAED, CAEB] (Engine & Transmission DTC Tables) (Coupe)
    • Generic Scan Tool [CAED, CAEB] (Engine DTC Table) (Coupe)
    • Generic Scan Tool [CAED, CAEB] (Engine DTC Tables) (Coupe)
    • Generic Scan Tool [CAED, CAEB] (General Information) (Coupe)
    • On Board Diagnostic (System Description - Access/Start Authorization) (Coupe)
    • On Board Diagnostic (System Description - Adaptive Cruise Control) (Coupe)
    • On Board Diagnostic (System Description - AUDI Infotainment) (Coupe)
    • On Board Diagnostic (System Description - Infotainment And Navigation) (Coupe)
  • Theory and Operation
    • General, Technical Data [CABB, CABA, CABD, CAEA, CAEB, CDHB, CDNB, CDNC, CDHA, CDZA, CADA, CCUA, CFKA, CPMA, CAED, CPMB, CHJA, CPEA] (Coupe)
  • Tune-Up
    • General, Technical Data (Oil Gauge Tester T40178 Service Values) (Coupe)
    • General, Technical Data [CABB, CABA, CABD, CAEA, CAEB, CDHB, CDNB, CDNC, CDHA, CDZA, CADA, CCUA, CFKA, CPMA, CAED, CPMB, CHJA, CPEA] (Coupe)
    • Ignition/Glow Plug System (Servicing) [CABB, CABA, CABD, CAEA, CAEB, CDHB, CDNB, CDNC, CDHA, CDZA, CADA, CCUA, CFKA, CPMA, CAED, CPMB, CHJA, CPEA] (Coupe)
    • Ignition/Glow Plug System [CAEB, CPMA] (Coupe)
    • On Board Diagnostic (System Description - Access/Start Authorization) (Coupe)
    • On Board Diagnostic (System Description - Adaptive Cruise Control) (Coupe)
    • On Board Diagnostic (System Description - AUDI Infotainment) (Coupe)
    • On Board Diagnostic (System Description - Infotainment And Navigation) (Coupe)
    • Technical Data (Fuel Supply System) (Coupe)
  • Vacuum Diagrams
    • General, Technical Data [CABB, CABA, CABD, CAEA, CAEB, CDHB, CDNB, CDNC, CDHA, CDZA, CADA, CCUA, CFKA, CPMA, CAED, CPMB, CHJA, CPEA] (Coupe)
  • Wiring Diagrams
    • General, Technical Data [CABB, CABA, CABD, CAEA, CAEB, CDHB, CDNB, CDNC, CDHA, CDZA, CADA, CCUA, CFKA, CPMA, CAED, CPMB, CHJA, CPEA] (Coupe)
• General Information
  • Abbreviations
    • Commonly Used Abbreviations - General Information
    • Emission Control Abbreviations
  • Accessories & Equipment
    • Immobilizer And Trailer Hitch - General Information (Coupe)
  • 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
    • Antilock Brake System (Coupe)
    • Map - Brake Systems
    • Map - Routine Inspection Reference Guide
  • Check Lists
    • Symptom Check List Worksheet - General Information
  • OBD-II Drive Cycles
  • 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 (1 Of 2) (Coupe)
    • DTC Index (2 Of 2) (Coupe)
    • DTC Index [CAED, CAEB] (Coupe)
  • 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
    • Automatic Stop/Start Disable
    • Wires (Coupe)
  • Reset Procedures
    • ATEQ TPMS Reset Procedure (09)
    • BARTEC TPMS RESET PROCEDURE (1 Of 2)
    • Maintenance Reminder Light (Reset Procedures)
    • Tire Pressure Monitor Systems (Cabriolet)
  • Specifications Index
    • Common Specs & Procedures
  • Steering
    • Map - Steering, Suspension, Wheel Alignment, Wheels & Tires
    • Wheel Alignment Theory & Operation - General Information
  • Wheels, Tires And Wheel Alignment (Towing Guide) (Coupe)
  • Traction Control Disable Procedures
  • Trouble Shooting - Manual Transmission - General Information
• Heating, Ventilation & A/C (HVAC)
  • General Servicing
    • Cabin Air Filter (Coupe)
    • General, Technical Data (HVAC) (Coupe)
    • GENERAL, TECHNICAL DATA [R1234yf SERVICING] (COUPE)
  • HVAC Control Systems
    • Air Conditioning (A/C Compressor) (Coupe)
    • Air Conditioning (Front Heater & A/C Unit) (Coupe)
    • Air Conditioning (Overview) (Coupe)
    • Air Conditioning (Refrigerant Circuit) (Coupe)
    • AIR CONDITIONING R1234yf (A/C SERVICE STATION) (COUPE)
    • AIR CONDITIONING R1234yf (REFRIGERANT CIRCUIT) (COUPE)
    • AIR CONDITIONING R1234yf (TOOLS & TESTING EQUIPMENT) (COUPE)
    • AIR CONDITIONING R134a (GENERAL INFORMATION) (COUPE)
    • AIR CONDITIONING R134a (PRESSURES, CHECKING) (COUPE)
    • AIR CONDITIONING R134a (REFRIGERANT CIRCUIT COMPONENTS) (COUPE)
    • AIR CONDITIONING R134a (REFRIGERANT CIRCUIT) (COUPE)
    • AIR CONDITIONING R134a (WARNINGS & PRESSURES) (COUPE)
    • General, Technical Data (HVAC) (Coupe)
    • GENERAL, TECHNICAL DATA [R1234yf SERVICING] (COUPE)
    • Heating, Ventilation (Coupe)
• Maintenance
  • Procedures
    • Maintenance Reminder Light (Reset Procedures)
    • Maintenance, Diagnosis (Fluid Capacity Tables) (Coupe)
    • Maintenance, Diagnosis (Maintenance Procedures) (Coupe)
    • Maintenance, Diagnosis (Maintenance Schedule) (Coupe)
    • Maintenance, Diagnosis (Schedule & Intervals) (Coupe)
• Restraints
  • Air Bag, SRS
    • General, Technical Data (Restraints) (Coupe)
    • Passenger Protection, Airbags, Seat Belts (Coupe)
  • Passive Restraints
    • General, Technical Data (Restraints) (Coupe)
    • Interior Equipment (Coupe)
    • Passenger Protection, Airbags, Seat Belts (Coupe)
  • Restraints Control Systems
    • General, Technical Data (Restraints) (Coupe)
  • Seat Belts
    • General, Technical Data (Restraints) (Coupe)
• Steering
  • Electronic Steering
    • Wheels, Tires, Wheel Alignment (Suspension, Wheels, Steering) (General Information) (Coupe)
    • Wheels, Tires, Wheel Alignment (Suspension, Wheels, Steering) (TPMS - Lane Assist) (Coupe)
  • Manual Steering
    • Steering (Coupe)
  • Power Steering
    • Steering (Coupe)
  • Steering Column
    • Steering (Coupe)
  • Steering Gear
    • Steering (Coupe)
  • Steering Linkage
    • Steering (Coupe)
• Suspension
  • Electronic Suspension
    • General, Technical Data (Suspension) (General Information) (Coupe)
    • General, Technical Data (Suspension) (Repair Information) (Coupe)
    • SELF-LEVELING SUSPENSION (1 Of 2) (COUPE)
    • Self-Leveling Suspension (2 Of 2) (Coupe)
  • Front Suspension
    • Front Suspension (Front Axle - Drive Axle) (Coupe)
    • Front Suspension (Removal & Installation) (Coupe)
    • General, Technical Data (Suspension) (General Information) (Coupe)
    • General, Technical Data (Suspension) (Repair Information) (Coupe)
  • Rear Suspension
    • General, Technical Data (Suspension) (General Information) (Coupe)
    • General, Technical Data (Suspension) (Repair Information) (Coupe)
    • Rear Suspension (1 Of 2) (Coupe)
    • REAR SUSPENSION (2 Of 2) (COUPE)
  • Suspension Control Systems
    • General, Technical Data (Suspension) (General Information) (Coupe)
    • General, Technical Data (Suspension) (Repair Information) (Coupe)
  • Wheel Alignment
    • AUDI Wheel Alignment Specifications - A5
    • Wheels, Tires, Wheel Alignment (Suspension, Wheels, Steering) (General Information) (Coupe)
    • Wheels, Tires, Wheel Alignment (Suspension, Wheels, Steering) (TPMS - Lane Assist) (Coupe)
  • Wheels & Tire System
    • General, Technical Data (Suspension) (General Information) (Coupe)
    • General, Technical Data (Suspension) (Repair Information) (Coupe)
    • Wheels, Tires, Wheel Alignment (Suspension, Wheels, Steering) (General Information) (Coupe)
    • Wheels, Tires, Wheel Alignment (Suspension, Wheels, Steering) (TPMS - Lane Assist) (Coupe)
    • Wheels, Tires, Wheel Alignment (Wheel And Tire General Information) (Coupe)
    • Wheels, Tires, Wheel Alignment (Wheel And Tire Guide) (Air Pressures) (Coupe)
    • Wheels, Tires, Wheel Alignment (Wheel And Tire Guide) (General Information) (Coupe)
• Transmission
  • Automatic Trans
    • General, Technical Data - Rear Final Drive 0BC (Coupe)
  • Manual Trans
    • General, Technical Data - Rear Final Drive 0BC (Coupe)
  • Transmission Control Systems
    • Controls, Housing - Automatic Transmission 0BK AWD (Coupe)
    • GENERIC SCAN TOOL [CAEB] (1 Of 2) (COUPE)
    • GENERIC SCAN TOOL [CAEB] (2 Of 2) (COUPE)
    • Generic Scan Tool [CAEB] (Engine DTC Table) (Coupe)
    • Generic Scan Tool [CAED, CAEB] (Diagnostic Procedures) (Coupe)
    • Generic Scan Tool [CAED, CAEB] (Engine & Transmission DTC Tables) (Coupe)
    • Generic Scan Tool [CAED, CAEB] (Engine DTC Table) (Coupe)
    • Generic Scan Tool [CAED, CAEB] (Engine DTC Tables) (Coupe)
    • Generic Scan Tool [CAED, CAEB] (General Information) (Coupe)
• External Pages