Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
External Pages
's manual. Be very cautious using repair info from here because these pages may not apply to your vehicle. Different variant/trim Section 1 (Clutches - 0A4 (Sedan) (A5 Platform)) Section 2 (Clutch - 02E (Sedan) (A5 Platform)) Section 3 (General, Technical Data - Engine - 2.5L - Engine Code(S): BGP, BGQ, CBTA & CBUA (As Of 12.2010) (Sedan) (A5 Platform)) Section 4 (General, Technical Data - Automatic Transmission 09G (Sedan) (A5 Platform)) Section 5 (General, Technical Data - Manual Transmission 0A4 (Sedan) (A5 Platform)) Section 6 (General, Technical Data - Automatic Transmission 02E (Sedan) (A5 Platform)) Section 7 (2.5L - MULTIPORT Fuel Injection - Engine Code(S): BGP, BGQ, CBTA & CBUA (Sedan) (A5 Platform)) Section 8 (Controls, Housing - Manual Transmission 0A4 (Sedan) (A5 Platform)) Section 9 (Controls, Housing - Automatic Transmission 02E (Sedan) (A5 Platform)) Section 10 (2.5L - Cylinder Head, VALVETRAIN - Engine Code(S): BGP, BGQ, CBTA & CBUA (Sedan) (A5 Platform)) Section 11 (2.5L - Ignition/Glow Plug System - Engine Code(S): BGP, BGQ, CBTA & CBUA (Sedan) (A5 Platform)) Section 12 (2.5L - Exhaust System, Emission Controls - Engine Code(S): BGP, BGQ, CBTA & CBUA (Sedan) (A5 Platform)) Section 13 (2.5L - Fuel Supply - Engine Code(S): BGP, BGQ, CBTA & CBUA (Sedan) (A5 Platform)) Section 14 (Gears, Hydraulic Controls - Automatic Transmission 09G (Sedan) (A5 Platform)) Section 15 (2.5L - Cooling System - Engine Code(S): BGP, BGQ, CBTA & CBUA (Sedan) (A5 Platform)) Section 16 (2.5L - Crankshaft, Cylinder Block - Engine Code(S): BGP, BGQ, CBTA & CBUA (Sedan) (A5 Platform)) Section 17 (Gears, Shafts - Manual Transmission 0A4 (Sedan) (A5 Platform)) Section 18 (Final Drive, Differential - Manual Transmission 0A4 (Sedan) (A5 Platform)) Section 19 (2.5L - Engine Assembly - Engine Code(S): BGP, BGQ, CBTA & CBUA (Sedan) (A5 Platform)) Section 20 (2.5L - Lubrication - Engine Code(S): BGP, BGQ, CBTA & CBUA (Sedan) (A5 Platform)) Different car Section 1 (Cabin Air Filter - A4 Platform) Section 2 (2.0L - MULTIPORT Fuel Injection (MFI) - AEG, AVH, AZG) Section 3 (On Board Diagnostic (OBD), Generic Scan Tool - 2.0L AEG, AVH, AZG) Section 4 (2.0L - Engine Mechanical - AEG, AVH, AZG, BBW, BEV (A4 Platform)) Section 5 (1.9L - TDI Engine Mechanical, Fuel Injection Glow Plug, Engine Code(S): BEW (A4 Platform)) Section 6 (3.2L VR6 4V Engine Mechanical, Fuel Injection Ignition, Engine Code(S): BJS) Section 7 (2.8L & 3.2L - Generic Scan Tool, Engine Code(S): AFP, BDF, BJS [A4 Platform] (28 Ignition/Glow Plug System - St Generic Scan Tool)) Section 8 (1.9L - TDI Engine Mechanical - ALH (A4 Platform)) Section 9 (1.8L - Engine Mechanical, Engine Code(S): AWD, AWW, AWP (A4 Platform)) Section 10 (2.8L - Engine Mechanical - AFP (A4 Platform)) Section 11 (2.8L - Engine Mechanical, Engine Code: BDF) Section 12 (1.8L - Fuel Injection & Ignition, Engine Code(S): AWD) Section 13 (1.8L - Fuel Injection Ignition, Engine Code(S): AWW, AWP (A4 Platform)) Section 14 (1.8L - Generic Scan Tool, Engine Code(S): AWP, AWW, AWD (A4 Platform)) Section 15 (1.9L - Fuel Injection Glow Plug, Engine Code: ALH (A4 Platform)) Section 16 (1.9L - Fuel Injection Glow Plug, Engine Code ALH, From My 2002 (A4 Platform)) Section 17 (1.9L - TDI And TDI Pd Generic Scan Tool, Engine Code(S): ALH, BEW (A4 Platform)) Section 18 (2.0L - Generic Scan Tool, Engine Code(S): AEG (A4 Platform)) Section 19 (2.8L - Fuel Injection Ignition, Engine Code(S): AFP (A4 Platform)) Section 20 (2.8L - Fuel Injection Ignition. [BDF] - (24 - MULTIPORT Fuel Injection, 28 - Ignition/Glow Plug System)) Section 21 (5 SPD. Manual Transmission 02J (A4 Platform)) Section 22 (5 AND 6 SPD. MANUAL TRANSMISSION 02M (2002-05) (A4 Platform)) Section 23 (6 SPD. Manual Transmission 02Y All Wheel Drive) Section 24 (4 SPD. Automatic Transmission 01M On Board Diagnostic (OBD) (A4 Platform)) Section 25 (5 SPD. Automatic Transmission 09A On Board Diagnostic (OBD)) Section 26 (4 SPD. Automatic Transmission 01M (A4 Platform)) Section 27 (5 SPD. Automatic Transmission 09A) Section 28 (Brake System - OBD (A4 Platform)) Section 29 (Brake System - A4 Platform) Section 30 (Suspension, Wheels, Steering (A4 Platform)) Section 31 (Body Exterior (A4 Platform)) Section 32 (Body Interior (A4 Platform)) Section 33 (Body On Board Diagnostic (OBD) (A4 Platform) [On Board Diagnostic (OBD) - Driver's Side Seat Adjustment, On Board Diagnostic (OBD)]) Section 34 (Heating, Ventilation Air Conditioning (A4 Platform)) Section 35 (Electrical Equipment On Board Diagnostic (OBD) (A4 Platform)) Section 36 (Electrical Equipment (A4 Platform)) Section 37 (Electrical Equipment - General Information (A4 Platform)) Section 38 (Radio, Telephone, Navigation (A4 Platform)) Section 39 (Maintenance (A4 Platform)) Section 40 (Maintenance, Diagnosis - Fluid Capacity Tables (A5 Platform)) Section 41 (Maintenance, Diagnosis - Fluid Capacity Tables (A5 Platform)) Section 42 (Maintenance, Diagnosis - Fluid Capacity Tables (A5 Platform)) Section 43 (Fluid Capacity Tables (Sedan) (A5 Platform)) Section 44 (1.9L - Technical Data - Engine Code(S): BKC, BLS, BRM & BXE (A5 Platform)) Section 45 (General, Technical Data - Engine - 2.0L - Engine Code(S): CBFA & CCTA (Sedan) (A5 Platform)) Section 46 (General, Technical Data - Engine - 2.0L - Engine Code(S): CBEA & CJAA (Sedan) (A5 Platform)) Section 47 (2.0L - MULTIPORT Fuel Injection - Engine Code(S): CBFA & CCTA (Sedan) (A5 Platform)) Section 48 (1.9L - Fuel Injection System - Engine Code(S): BKC, BLS, BRM & BXE (A5 Platform)) Section 49 (1.9L - Cylinder Head, VALVETRAIN - Engine Code(S): BKC, BLS, BRM & BXE (A5 Platform)) Section 50 (2.0L - Cylinder Head, VALVETRAIN - Engine Code(S): CBFA & CCTA (Sedan) (A5 Platform)) Section 51 (2.0L - Cylinder Head, VALVETRAIN - Engine Code(S): CBEA & CJAA (Sedan) (A5 Platform)) Section 52 (2.0L - Ignition/Glow Plug System - Engine Code(S): CBFA & CCTA (Sedan) (A5 Platform)) Section 53 (2.0L - Ignition/Glow Plug System - Engine Code(S): CBEA & CJAA (Sedan) (A5 Platform)) Section 54 (1.9L - Glow Plug System - Engine Code(S): BKC, BLS, BRM & BXE (A5 Platform)) Section 55 (1.9L - Exhaust System, Emission Controls - Engine Code(S): BKC, BLS, BRM & BXE (A5 Platform)) Section 56 (2.0L - Exhaust System, Emission Controls - Engine Code(S): CBFA & CCTA (Sedan) (A5 Platform)) Section 57 (2.0L - Exhaust System, Emission Controls - Engine Code(S): CBEA & CJAA (Sedan) (A5 Platform)) Section 58 (1.9L - Turbocharger, G-Charger - Engine Code(S): BKC, BLS, BRM & BXE (A5 Platform)) Section 59 (2.0L - Engine Assembly - Engine Code(S): CBEA & CJAA (Sedan) (A5 Platform)) Section 60 (2.0L - Diesel Fuel Injection - Engine Code(S): CBEA & CJAA (Sedan) (A5 Platform)) Section 61 (2.0L - Fuel Supply - Engine Code(S): CBEA & CJAA (Sedan) (A5 Platform)) Section 62 (2.0L - Cooling System - Engine Code(S): CBEA & CJAA (Sedan) (A5 Platform)) Section 63 (2.0L - Turbocharger, Supercharger - Engine Code(S): CBEA & CJAA (Sedan) (A5 Platform)) Section 64 (2.0L - Crankshaft, Cylinder Block - Engine Code(S): CBEA & CJAA (Sedan) (A5 Platform)) Section 65 (2.0L - Lubrication - Engine Code(S): CBEA & CJAA (Sedan) (A5 Platform)) Section 66 (2.0L - Engine Assembly - Engine Code(S): CBFA & CCTA (Sedan) (A5 Platform)) Section 67 (2.0L - Turbocharger, Supercharger - Engine Code(S): CBFA & CCTA (Sedan) (A5 Platform)) Section 68 (2.0L - Cooling System - Engine Code(S): CBFA & CCTA (Sedan) (A5 Platform)) Section 69 (2.0L - Crankshaft, Cylinder Block - Engine Code(S): CBFA & CCTA (Sedan) (A5 Platform)) Section 70 (2.0L - Fuel Supply -
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
