The Audi A3 (8V) EWD Electrical Wiring Diagram & Fitting Locations manual is an essential resource for anyone working on the electrical systems of the Audi A3 8V series. This comprehensive guide provides detailed wiring diagrams and precise fitting locations for all electrical components, ensuring accurate repairs, troubleshooting, and modifications. Whether you’re a professional mechanic, an automotive electrician, or an Audi enthusiast, this manual is indispensable for understanding and maintaining your vehicle’s complex electrical systems.
Key Features:
- Comprehensive Wiring Diagrams: Detailed electrical wiring diagrams for the Audi A3 (8V) covering all circuits and components.
- Fitting Locations: Precise locations of all electrical components and connectors for easy identification and access.
- Troubleshooting Assistance: Use the diagrams and fitting locations to diagnose and resolve electrical issues efficiently.
- User-Friendly Layout: Clear and organized diagrams make it easy to navigate and understand the vehicle’s electrical system.
- Professional-Grade Information: Essential for accurate repairs, modifications, and maintenance of the Audi A3 (8V).
Format: PDF
Pages: 2770
Delivery: The download link will be promptly delivered to your email upon completing the checkout process.
Contents:
- Current Flow Diagram:
- Basic equipment , (L0L),(5C0)
- Convenience system, left-hand drive, (L0L)
- 1.4l petrol engine , CMBA,CXSA,CXSB,CZCA
- 1.8l petrol engine , CJSA,CJSB,CNSB
- 2.0l diesel engine, CRLB, CRLC, CUNA
- Airbag systems
- 7-speed dual-clutch gearbox 0CW (S tronic) , (0EG)
- Trailer coupling , (1M5),(1D2)
- Anti-lock brake system (ABS) with electronic stabilization program (ESP)
- Auxiliary heater, (9M9)
- Rear parking aid (PDC), (7X1)
- Parking aid (PDC) with no park assist steering (Park Assist) , (7X2)
- Parking aid (PDC) with park assist steering (Park Assist) , (7X5)
- Automatic air conditioning system, (9AK)
- Air conditioning system with manual regulation, (KH6)
- Manually controlled heater, (9AC)
- Automatic anti-dazzle interior mirror, (4L6)
- Gas discharge headlights (bi-xenon) with automatic headlight range control and cornering light, (8IM)
- Battery in engine compartment with start/stop system and energy recovery, (7L6)
- Gas discharge headlights with automatic headlight range control, (8IG)
- Adjustable lumbar support with electric adjustable seat, (3PB),(7P1)
- Seat heating, (4A3)
- Adjustable driver and front passenger seats, (3L5)
- Interface for special functions, (7G9)
- Data bus network
- Radiator fan
- Entry and start authorisation, (L0L)
- Electromechanical steering, (L0L)
- Lane change assist , (7Y1),(7Y5)
- Cigarette lighter and 12 V sockets
- Automatic adaptive suspension, adjustable dampers, (2H7)
- Infotainment MOST bus
- Assist systems , (6K2),(6K3),(6K4),(QK1)
- Reversing camera (Rear Assist), (KA2)
- All-wheel drive, (1X1)
- Sliding sunroof (open-sky system), (3FB)
- Tail light cluster with LED, (8SP),(8SK)
- Auxiliary air heater, (7E6)
- Multifunction steering wheel, (1XW)
- Fuse assignment
- Bang & Olufsen sound system, (9VS)
- Radio , (I8A),(GP0)
- MMI with radio , (I8D),(I8E),(GP0)
- MMI high with navigation system , (I8G),(I8H),(I8S),(GP0)
- 1.2l petrol engine , CJZA,CYVB
- 1.4l petrol engine, CPTA, CZEA
- 1.6l diesel engine, CLHA
- 2.0l petrol engine, CHHB, CJXB, CJXC, CJXF, CNTC, CYFB
- Convenience system, a 5-door vehicle with lighting package and/or childproof locks, (L0L),(4H5)
- Dual-clutch gearbox 0D9 , (0ES)
- Ring break diagnosis
- Tail light cluster with LED, 5-door vehicle, (8SP),(8SK)
- Driving school, (F5F)
- Driving aids for disabled persons with special vehicle control unit, (F6M)
- TV tuner, (QV1)
- The battery in the engine compartment with no start/stop system and no energy recovery, (7L3)
- Basic equipment, right-hand drive, (L0R)
- Entry and start authorisation for RHD vehicles, (L0R)
- LED headlights, (8IT)
- Electromechanical steering, right-hand drive, (L0R)
- Convenience system, right-hand drive, (L0R)
- Convenience system, 5-door vehicle with lighting package and/or childproof locks, right-hand drive, (L0R),(4H5)
- Basic equipment, 4-door vehicle, (L0L),(5C0)
- Convenience system, 4-door vehicle , (L0L),(4H0),(4H3)
- Tail light cluster with LED, 4-door vehicle, (8SP),(8SK)
- Basic equipment, 4-door RHD vehicles, (L0R)
- Convenience system, 4-door RHD vehicles , (L0R),(4H0),(4H3)
- Convenience system, 4-door vehicle with lighting package and/or childproof locks, right-hand drive, (L0R),(4H5)
- Convenience system, 4-door vehicle with lighting package and/or childproof locks, (L0L),(4H5)
- Trailer coupling , (1M5),(1D2)
- All-wheel drive, (1X1)
- 1.4l petrol engine, CPWA
- Airbag systems for RHD vehicles, (L0R)
- Fuse assignment
- 1.6l diesel engine, CRKB
- Airbag systems for RHD vehicles, (L0R)
- Basic equipment , (L0L),(5C0)
- Convenience system, (L0L)
- Neck heating
- Bang & Olufsen sound system, (9VS)
- Tail light cluster with LED, (8SP),(8SK)
- Battery in engine compartment with start/stop system and energy recovery, (7L6)
- The battery in the engine compartment with no start/stop system and no energy recovery, (7L3)
- All-wheel drive, (1X1)
- Airbag systems (US equipment), (5C1)
- Basic equipment (Canada, Mexico, USA), (L0L),(5C1),(A8U)
- Power-operated convertible roof
- Airbag systems, (L0L)
- 2.0l diesel engine , CRUA,DEJA,DEJB
- Basic equipment, right-hand drive, (L0R)
- Convenience system, right-hand drive, (L0R)
- Airbag systems for RHD vehicles, (L0R)
- 1.4l petrol engine, CSSA, DBWA
- 1.4l petrol engine, CUKB, CXUA
- High-voltage system, (0K3)
- Basic equipment (Canada, Mexico, USA), (L0L),(5C1)
- Air conditioning system for models with high-voltage system, (9AK),(0K3)
- Dual-clutch gearbox 0DD , (0IC)
- Airbag systems (US equipment), (5C1)
- Trailer coupling , (1M5),(1D2)
- 1.8l petrol engine, CUFA
- 7-speed dual-clutch gearbox 0DE (S tronic), (0IE)
- Basic equipment (Canada, Mexico, USA), (L0L),(5C1)
- Basic equipment , (L0L),(5C0)
- Basic equipment , (L0L),(5C0)
- Basic equipment, right-hand drive, (L0R)
- Basic equipment, right-hand drive, (L0R)
- Tail light cluster with LED, (8SP),(8SK)
- Tail light cluster with LED, only models with US equipment, (8SP),(8SK),(5C1)
- 2.5l petrol engine , CZGB
- Battery in luggage compartment, CZGB
- 7-speed dual-clutch gearbox 0BH (S tronic), (0EX)
- Anti-lock brake system (ABS) with electronic stabilization program (ESP), CZGB, DAZA
- Interface for special functions, CZGB
- Multifunction steering wheel, CZGB
- LED headlights, CZGB
- Automatic air conditioning system, CZGB, DAZA, DNWA
- Air conditioning system with manual regulation, CZGB, DAZA
- Fuse assignment, CZGB
- 1.4l petrol engine, CWLA
- 1.6l diesel engine , DBKA
- 1.6l diesel engine, CXXB, CRKB, DDYA
- 2.0l diesel engine , DBGA
- 6-speed automatic gearbox, (0ER)
- 2.0l diesel engine , CRBC,CRBD,CRFA,CRFB,CRFC,CUPA
- 2.0l diesel engine, CRLB, CRLC, CUNA, DCYA, DGCA
- Anti-lock brake system (ABS) with electronic stabilization program (ESP)
- 1.8l petrol engine , CJSA,CJSB,CNSB
- 2.0l petrol engine , CHHB,CJXB,CJXC,CJXF,CNTC,CYFB,CJXG,CJXD
- 1.8l petrol engine, CUFA
- 1.4l petrol engine, CZCC
- 1.2l petrol engine , CJZA,CYVB
- 1.4l petrol engine , CWLA
- 1.4l petrol engine , CSSA, DBWA
- 1.4l petrol engine , CMBA,CXSA,CXSB,CZCA
- 1.4l petrol engine , CPTA, CZEA
- 1.4l petrol engine , CPWA
- High-voltage system , (0K3)
- 1.4l petrol engine, CUKB, CXUA
- Trailer coupling , (1M5),(1M6)
- Battery in luggage compartment, DAZA, DNWA
- Dual-clutch gearbox (DSG), (0IJ)
- Gas discharge headlights (bi-xenon) with automatic headlight range control and cornering light, (8IH)
- Entry and start authorisation, (L0L)
- LED headlights, (8IT)
- MMI with radio, (GP1)
- Infotainment MOST bus
- LED matrix beam headlights, (8G4)
- Reversing camera (Rear Assist), (KA2)
- Bang & Olufsen sound system, (9VS)
- Lane change assist , (79B),(79D),(7Y1),(7Y5)
- TV tuner, (QV1)
- Telephone system , (9ZX),(9ZE),(9ZV)
- 6-speed automatic gearbox, (0ER)
- Ring break diagnosis
- Dash panel insert, (9S8)
- Fuel system , (1A5),(1A7),(9S8)
- Fuel system , (0F5),(1A8),(9S8)
- Steering column electronics, (L0L)
- Entry and start authorisation for RHD vehicles, (L0R)
- Basic equipment, (L0L)
- Dash panel insert , (9S4),(9S5),(9S6)
- Fuel system , (1A5),(1A7),(9S4),(9S5),(9S6)
- Fuel system , (0F5),(1A8),(9S4),(9S5),(9S6)
- Tail light cluster with LED, (8SP)
- Tail light cluster with LED, 4-door vehicle, (8SK),(8SP)
- Tail light cluster with LED, only models with US equipment, (5C1),(8SK),(8SP)
- Tail light cluster with LED, 5-door vehicle, (8SK),(8SP)
- Tail light cluster with LED, only models with US equipment, (5C1),(8SK),(8SP)
- Tail light cluster with LED, (8SK),(8SP)
- Tail light cluster with LED, only models with US equipment, (5C1),(8SK),(8SP)
- Tail lights, (8SA)
- Basic equipment, (L0R)
- Steering column electronics, (L0R)
- 1.0l petrol engine, CHZD
- 2.0l petrol engine , CZPB,DBFB
- 2.0l petrol engine, CZRA
- 2.0l petrol engine, DJHA, DJHB, DJJA
- Adjustable driver and front passenger seats , (2R1),(3E9),(8I0)
- Electrically adjustable lumbar support, (7P1),(7P7)
- Electrically adjustable lumbar support, (8I0),(8I1)
- Emergency call module, (NZ3)
- Tyre Pressure Monitoring System, (7K3),(7K4)
- Cigarette lighter and 12 V sockets
- Fuel system , (1E7),(FN1)
- Fuel system , (1E1),(FN1)
- 2.5l petrol engine, DNWA
- 2.5l petrol engine , DAZA
- LED headlights, (8IT)
- LED matrix beam headlights, (8G4)
- 1.5l petrol engine, DADA, DPCA
- Basic equipment, (L0L)
- Basic equipment, right-hand drive, (L0R)
- Adjustable driver and front passenger seats, (3L5),(3PP)
- 1.0l petrol engine , DKRA,DKRF
- 1.4l petrol engine, DJSA
- 2.0l diesel engine , DFGA,DJGA
- 1.6l diesel engine , DGTA,DGTE
- Entry and start authorisation, (L0L)
- Entry and start authorisation, (L0R)
- Steering column electronics, (L0L)
- Steering column electronics, (L0R)
- 2.0l petrol engine, DHHA
- 2.0l petrol engine, DLRA
- 2.0l petrol engine, DNUE
- 2.0l petrol engine , DKZA
- 7-speed dual-clutch gearbox 0CW (S tronic) , (0EG)
- Dual-clutch gearbox 0D9 , (0ES)
- 6-speed dual-clutch gearbox, (0IC)
- 7-speed dual-clutch gearbox 0DE (S tronic), (0IE)
- Dual-clutch gearbox 0DL, DNWA
- Dual-clutch gearbox (DSG), (0IJ)
- Steering column electronics, (L0L)
- Steering column electronics, (L0R)
- Dual-clutch gearbox 0DL , (0EX)
- 6-speed automatic gearbox, (0ER)
- Fuse assignment
- Airbag systems for RHD vehicles, (L0R)
- 2.0l petrol engine , DKVA
- 1.5l natural gas engine, DHFA
- Fuel system, (0F0)
- 1.4l petrol engine, DGEA
- Fitting Locations:
- Earth points in front part of vehicle
- Earth point, on left in engine compartment
- Earth point in centre of engine compartment
- Earth point, on right headlight
- Earth point 1 and 3 on front of left longitudinal member
- Earth point 4, on front of left longitudinal member
- Earth point 1, on front of right longitudinal member
- 1.0l petrol engine
- 1.2l petrol engine
- 1.4l petrol engine
- 1.5l petrol engine
- 2.0l petrol engine
- Earth points on right A-pillar
- Earth points on front of left longitudinal member
- Earth point 1, on centre tunnel
- Earth point, on rear right of underbody
- Earth point on rear left pillar (3-door and 5-door)
- Earth point on right C-pillar (3-door and 5-door)
- Earth point on rear right pillar (3-door and 5-door)
- Earth point, central on rear lid (3-door and 5-door)
- Earth point in luggage compartment (3-door and 5-door)
- Earth point under rear shelf (4-door)
- Earth point on left in luggage compartment (4-door)
- Earth point on right in luggage compartment (4-door)
- Earth point, right D-pillar (4-door)
- Earth point on left in luggage compartment (cabriolet)
- Earth point on right in luggage compartment (cabriolet)
- Earth point 2 on right in luggage compartment (cabriolet)
- Earth point 2 on left in luggage compartment (cabriolet)
- Earth point on rear left wheel housing (cabriolet)
- Overview of fuses (3-door)
- Overview of fuses (4-door)
- Overview of fuses (5-door)
- Overview of fuses (Cabriolet)
- Fitting location of fuse holder A -SA- , without hybrid drive
- Fitting location of fuse holder A -SA- , with hybrid drive
- Fuse assignment, fuse holder A -SA- , with RS3
- Fitting location of fuse holder B -SB- , without hybrid drive
- Fitting location of fuse holder B -SB- , with hybrid drive
- Fuse assignment on fuse holder B -SB-
- Fitting location of fuse holder C -SC-
- Fuse assignment for fuse holder C -SC-
- Fitting location of fuse holder D -SD- , left-hand drive
- Fitting location of fuse holder D -SD- , right-hand drive
- Fuse assignment fuse holder D -SD- , from March 2012, up to April 2013
- Fuse assignment fuse holder F -SF- , from May 2013
- Fitting location of fuse holder H -SH-
- Fitting location of fuse holder H -SH- , left-hand drive
- Fitting location of fuse holder H -SH- , right-hand drive
- Fuse assignment for fuse holder H -SH-
- Fuse holder on onboard supply control unit -J519-, left-hand drive
- Fuse holder on onboard supply control unit -J519-, right-hand drive
- Fuse holder on additional relay carrier, left-hand drive models
- Fuse holder for battery in luggage compartment, with hybrid drive
- Fitting location of fuse holder in main fuse box in luggage compartment, with RS3, up to October 2016
- Fitting location of fuse holder in main fuse box in luggage compartment, with RS3, from November 2016
- Fuse assignment, fuse holder in main fuse box in luggage compartment
- Overview of relays (3-door)
- Overview of relays (4-door)
- Overview of relays (5-door)
- Overview of relays (Cabriolet)
- Relay locations on E-box, without hybrid drive
- Relay locations on E-box, with hybrid drive
- Relay locations on E-box, with RS3
- Relay slot assignment under left dash panel
- Relay slot assignment on additional relay carrier, left-hand drive models
- Relay slot assignment on additional relay carrier, right-hand drive models
- Overview of control units
- Overview of additional control units and components (with hybrid drive)
- Battery monitor control unit -J367-
- ABS control unit -J104-
- Engine control unit -J623- (154-pin)
- Engine control unit -J623- (196-pin)
- Power steering control unit -J500-
- Adaptive cruise control unit -J428-
- Auxiliary heater control unit -J364-
- Three-phase current drive -VX54-
- Maintenance connector for high-voltage system -TW-
- High-voltage heater (PTC) control unit -J848-
- Brake servo -NX6-
- Brake system pressure accumulator -VX70-
- Power and control electronics for electric drive -JX1-
- High-voltage battery charger control unit -J1050-
- High-voltage battery charging socket 1 -UX4-
- Air conditioner compressor control unit -J842-
- Automatic gearbox control unit -J217- , up to April 2016
- Automatic gearbox control unit -J217- , from May 2016
- Control unit for structure-borne sound -J869-
- Wiper motor control unit -J400-
- NOx sender control unit -J583-
- Overview of control units in interior of vehicle (3-door models)
- Overview of control units in interior of vehicle (4-door models)
- Overview of control units in interior of vehicle (5-door models)
- Overview of control units in interior of vehicle (Cabriolet)
- Overview of control units in rear part of vehicle (3-door)
- Overview of control units in rear part of vehicle (4-door)
- Overview of control units in rear part of vehicle (5-door)
- Overview of additional control units in rear part of vehicle (5-door, with hybrid drive)
- Overview of control units in rear part of vehicle (Cabriolet)
- Electronically controlled damping control unit -J250-
- Digital sound package control unit -J525-
- Reversing camera system control unit -J772- (3 and 5-door)
- Fuel pump control unit -J538- (petrol engine)
- Fuel pump control unit -J538- (diesel engine)
- Tyre Pressure Monitoring System control unit -J502- (4 and 5-door)
- Aerial amplifier for mobile telephone -R86- (3 and 5-door)
- Remote control receiver for auxiliary heater -R64- (3 and 5-door)
- Control unit in dash panel insert -J285-, 18-pin
- Control unit in dash panel insert -J285-, 32-pin
- Selector lever sensors control unit -J587-
- Trailer detector control unit -J345-, up to April 2014 (3 and 5-door)
- Trailer detector control unit -J345-, up from May 2014 (3 and 5-door)
- Control unit for electronic steering column lock -J764- , up to June 2018
- Control unit for electronic steering column lock -J764- , from July 2018
- Lane change assist control unit 2 -J770- , from May 2016
- Lane change assist control unit -J769- , up to April 2016
- Lane change assist control unit -J769- , from May 2016
- Entry and start authorisation control unit -J518- , up to June 2018
- Entry and start authorisation control unit -J518- , from July 2018
- Air conditioning system control unit -J301-
- Climatronic control unit -J255-
- Onboard supply control unit -J519-
- Data bus diagnostic interface -J533-
- Airbag control unit -J234-
- Parking aid control unit -J446- / park assist steering control unit -J791-
- Driver door control unit -J386-
- Front passenger door control unit -J387-
- Steering column electronics control unit -J527-, without a heated steering wheel, up to June 2018
- Steering column electronics control unit -J527-, with heated steering wheel, up to June 2018
- Steering column electronics control unit -J527- , without heated steering wheel, from July 2018
- Steering column electronics control unit -J527- , with heated steering wheel, from July 2018
- Headlight range control unit -J431- / control unit for cornering light and headlight range -J745-, up to April 2017
- Control unit for cornering light and headlight range control -J745-, from May 2017
- CAN bus control unit -J916-
- Special vehicle control unit -J608- (3 and 5-door)
- Rear driver-side door control unit -J926-
- Rear passenger side door control unit -J927-
- Aerial amplifier for mobile telephone -R86- (4-door)
- Reversing camera system control unit -J772- (4-door)
- Remote control receiver for auxiliary heater -R64- (4-door)
- Trailer detector control unit -J345- , up to April 2014 (4-door)
- Trailer detector control unit -J345- , up from May 2014 (4-door)
- Special vehicle control unit -J608- (4-door)
- Special vehicle control unit -J608- (Cabriolet)
- Aerial amplifier for mobile telephone -R86- (Cabriolet)
- Trailer detector control unit -J345- , up to April 2014 (Cabriolet)
- Trailer detector control unit -J345- , from May 2014 (Cabriolet)
- Driver door control unit -J386- (Cabriolet)
- Passenger door control unit -J387- (Cabriolet)
- Convertible roof actuation control unit -J256-
- Reversing camera system control unit -J772- (Cabriolet)
- Interior mirror -EX5-
- All-wheel drive control unit -J492-
- Display unit for front information display and operating unit control unit -J685-
- Multimedia system operating unit -E380- (MMI)
- Front camera for driver assist systems -R242-
- Control unit 1 for information electronics -J794- (MMI high), up to April 2016
- TV tuner -R78- (5-door)
- TV tuner -R78- (4-door)
- Sliding sunroof adjustment control unit -J245-
- Control unit 1 for information electronics -J794- (radio), up to July 2016
- Control unit 1 for information electronics -J794- , MMI radio, from May 2016
- Control unit 1 for information electronics -J794- , MMI Navigation plus (I8L), from May 2016
- Multimedia system operating unit -E380- (radio)
- Control unit 1 for information electronics -J794- (MMI with radio), up to April 2016
- Hybrid battery unit -AX1-
- Battery monitor control unit -J367-
- Emergency call module control unit and communication unit -J949-
- Engine sound generator control unit -J943-
- Entry and start authorisation control unit -J518- , with US equipment, up to June 2018
- Entry and start authorisation control unit -J518- , with US equipment, from July 2018
- Multifunction steering wheel control unit -J453-
- Control unit for front left belt tensioner -J854- / control unit for front right belt tensioner -J855- (Cabriolet)
- Fresh air blower control unit -J126-
- Reversing camera system control unit -J772-, from May 2016
- Control unit with rear driver-side window regulator motor -J1016- / Control unit with rear passenger side window regulator motor -J1017- (4 and 5-door)
- Control unit with rear driver-side window regulator motor -J1016- / Control unit with rear passenger side window regulator motor -J1017- (Cabriolet)
- Control unit for front left belt tensioner -J854- / control unit for front right belt tensioner -J855- (not for Cabriolet)
- Control unit for reducing agent heater -J891- , up to June 2018
- Control unit for reducing agent heater -J891- , for rear axle with all-wheel drive (1X1), from July 2018
- Control unit for reducing agent heater -J891- , for 4-guide axle (0N4) and front-wheel drive (1X0), from July 2018
- Control unit for reducing agent heater -J891- , for rear axle standard (0N1), from July 2018
- Chip card reader control unit -J676-
- Control unit for fuel tank leak detection -J909-
- Seat occupied recognition control unit -J706-
- Left neck heating control unit -J846- / right neck heating control unit -J847-
- Overview of coupling stations (3-door models)
- Overview of coupling stations (4-door models)
- Overview of coupling stations (5-door models)
- Overview of coupling stations (Cabriolet)
- Right coupling station for door wiring harness
- Seat wiring coupling station, right
- Rear right coupling station, rear lid
- Coupling station for rear bumper
- Coupling station, the rear left side of the rear lid
- Seat wiring coupling station left
- Door wiring harness coupling station left
- Coupling station for engine pre-wiring
- Coupling station in front bumper
- Coupling station, alternator
- Coupling station on left A-pillar, left-hand drive model
- Coupling station on left A-pillar, right-hand drive model
- Coupling station on right A-pillar, left-hand drive model
- Coupling station for radiator fan
- Coupling station for roof wiring harness
- Rear left coupling station for door wiring harness
- Rear right coupling station for door wiring harness
- Seat wiring coupling station, right
- Coupling station, rear left side of luggage compartment lid
- Seat wiring coupling station left
- Coupling station, electric steering
- Coupling station on right of convertible roof box lid
- Coupling station for engine pre-wiring, with hybrid drive
- Coupling station all-wheel drive
- Coupling station, reducing agent metering system, rear right, up to June 2018
- Coupling station, reducing agent metering system, rear right, for rear axle standard (0N1) or rear axle with all-wheel drive (1X1), from July 2018
- Coupling station, reducing agent metering system, rear left, for 4-guide axle (0N4) and front-wheel drive (1X0), from July 2018
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