ENGINE PERFORMANCE – Audi A3 2009 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

2.0L TURBO

2.0L Turbo, Engine Performance Wiring Diagram, BPY (1 of 5) for Audi A3 2009

List of elements for 2.0L Turbo, Engine Performance Wiring Diagram, BPY (1 of 5) for Audi A3 2009:

• (in center of plenum chamber)
• (in left plenum chamber) g607
• (on engine air intake duct) mass air flow (maf) sensor
• Accelerator pedal position sensor 2 & throttle position (tp) sensor (at accelerator pedal)
• Charge air pressure sensor (if equipped) (in charge air pipe)
• Cooling fans system
• Cruise control system
• Engine coolant temperature (ect) sensor (radiator)
• Fuse 10a
• Fuse 25a
• Fuse panel b (integrated in engine compt e-box)
• Heated oxygen (ho2s) sensor (in exhaust, at turbocharger exit)
• Hot w/ motronic engine control module (ecm) power relay energized
• Motronic engine control module (ecm)
• Nca
• Oxygen sensor (o2s) heater 1 behind three way catalytic converter (twc)
• T26
• T40
• T94

2.0L Turbo, Engine Performance Wiring Diagram, BPY (2 of 5) for Audi A3 2009

List of elements for 2.0L Turbo, Engine Performance Wiring Diagram, BPY (2 of 5) for Audi A3 2009:

• (behind left kick panel)
• (behind left kick panel) g44
• (below left side of dash) vehicle electrical system control module
• (in left plenum chamber)
• (m/t) clutch position sensor
• (top of brake pedal assembly) brake light switch & brake pedal switch
• Abs control module (at right rear of engine compt)
• Coolant circulation pump relay
• Early production
• Engine coolant temperature (ect) sensor (right rear of engine)
• Engine speed sensor (on engine block near transmission)
• Fuse
• Fuse 10a
• Fuse 5a
• Fuse panel b (integrated in engine compt e-box)
• G44
• G607
• Intake air temperature sensor (left side of of engine)
• Knock sensor (ks) 1 (on left front of engine block, near head)
• Knock sensor (ks) 2 (on left rear of engine block, near head)
• Late production
• Leak detection pump (ldp) (if equipped)
• Low fuel pressure sensor (left rear of engine)
• Nca
• Red
• T16a
• T26
• T40
• T52c
• Throttle valve control module (on throttle body)
• Transmissions system

2.0L Turbo, Engine Performance Wiring Diagram, BPY (3 of 5) for Audi A3 2009

List of elements for 2.0L Turbo, Engine Performance Wiring Diagram, BPY (3 of 5) for Audi A3 2009:

• (below left side of dash) vehicle electrical system control module
• (in left plenum chamber) g607
• (left side of engine, below oil filter) after-run coolant pump
• (on right "c" pillar) g62
• (under right side of rear seat) fuel pump (fp) control module
• Camshaft position (cmp) sensor (front of cylinder head)
• Computer data lines system
• Data bus on-board diagnostic interface (behind center console storage compartment)
• Early production
• Fuel level sensor & transfer fuel pump
• Fuel pressure sensor (on left side of engine, in fuel rail)
• G401
• Intake manifold runner position sensor (on cylinder head, in intake manifold)
• Late production
• Motronic engine control module (ecm) (in center of plenum chamber)
• Nca
• Red
• T11b
• T52b
• T60

2.0L Turbo, Engine Performance Wiring Diagram, BPY (4 of 5) for Audi A3 2009

List of elements for 2.0L Turbo, Engine Performance Wiring Diagram, BPY (4 of 5) for Audi A3 2009:

• (on left headlight)
• (w/ awd) fuel level sensor 2
• 27a
• Early production
• Engine coolant level/temp warning
• Engine coolant temp
• Engine electronics ind
• Fuel gauge
• Fuel reserve warning
• Fuse 10a
• Fuse 15a
• Fuse panel c
• G15
• G401
• G655
• G655 (on left headlight)
• Hot at all times
• Ignition coils w/ power output stage (top of cylinder head)
• Instrument cluster control module
• Late production
• Mil ind
• Nca
• Oil pressure switch
• Oil pressure warning
• Red
• To spark plug

2.0L Turbo, Engine Performance Wiring Diagram, BPY (5 of 5) for Audi A3 2009

List of elements for 2.0L Turbo, Engine Performance Wiring Diagram, BPY (5 of 5) for Audi A3 2009:

• (in center of plenum chamber)
• Camshaft adjustment valve 1 (top rear of right cylinder head)
• Computer data lines system
• Early production
• Evaporative emission (evap) canister purge regulator valve (left rear of engine)
• Fuel injectors (right side of engine, below intake manifold)
• Fuel pressure regulator valve (rear of engine)
• Fuse 10a
• Fuse 15a
• Fuse 20a
• Fuse 5a
• Fuse panel b (integrated in engine compartment e-box)
• Hot at all times
• Late production
• Motronic engine control module (ecm)
• Nca
• Red
• Starting/charging system
• T26
• T40
• T60
• T94
• Turbocharger recirculating valve (top front of engine)
• Wastegate bypass regulator valve (right rear of engine compt)

2.0L Turbo, Engine Performance Wiring Diagram, CBFA (1 of 6) for Audi A3 2009

List of elements for 2.0L Turbo, Engine Performance Wiring Diagram, CBFA (1 of 6) for Audi A3 2009:

• (in left plenum chamber) g607
• Cooling fans system
• Cruise control system
• Cruise control system starting/ charging system
• Early production
• Engine control module (ecm)
• Engine coolant temperature (ect) sensor (w/ radiator) (right rear of engine)
• Fuse 10a
• Fuse 15a
• Fuse 20a
• Fuse 5a
• Fuse panel b (integrated in engine compt e-box)
• Hot at all times
• Late production
• Nca
• Oxygen sensor (o2s) behind three way catalytic converter (twc) (under vehicle, in exhaust)
• Oxygen sensor (o2s) heater 1 behind three way catalytic converter (twc) (under vehicle, in exhaust)
• Power distribution system
• Radiator identification sensor
• Red
• T40
• T94

2.0L Turbo, Engine Performance Wiring Diagram, CBFA (2 of 6) for Audi A3 2009

List of elements for 2.0L Turbo, Engine Performance Wiring Diagram, CBFA (2 of 6) for Audi A3 2009:

• (behind (behind left kick panel)
• (below left side of dash) vehicle electrical system control module
• (in left plenum chamber) g607
• (left side of engine, below oil filter) after-run coolant pump
• (m/t) clutch position sensor
• 14-pin connector (not used)
• A/t
• Abs control module (at right rear of engine compt)
• Brake light switch (top of brake pedal assembly)
• Coolant circulation pump relay (on fuse panel "b")
• Direct shift gear box (dsg) mechatronic (on transmission housing)
• Early production
• G44
• G44 (behind left kick panel)
• G607
• Heated oxygen sensor (in exhaust, at turbocharger exit)
• Late production
• Leak detection pump (ldp)
• Left kick panel)
• M/t
• Nca
• Red
• T11b
• T14
• T16a
• T20e
• T52b
• T52c
• Throttle position (tp) sensor & accelerator pedal position sensor 2 (on accelerator pedal)

2.0L Turbo, Engine Performance Wiring Diagram, CBFA (3 of 6) for Audi A3 2009

List of elements for 2.0L Turbo, Engine Performance Wiring Diagram, CBFA (3 of 6) for Audi A3 2009:

• (awd) fuel level sensor 2
• (under right side of rear seat) fuel pump (fp) control module
• Early production
• Fuel level sensor & transfer fuel pump
• Fuse 40a
• Fuse panel b (integrated in engine compt e-box)
• G15
• G401
• G62 (on right "c" pillar)
• G655 (on left headlight)
• Hot at all times
• Ignition coils w/ power output stage (top of cylinder head)
• Late production
• Nca
• Red
• Secondary air injection (air) pump relay
• T40
• To spark plug

2.0L Turbo, Engine Performance Wiring Diagram, CBFA (4 of 6) for Audi A3 2009

List of elements for 2.0L Turbo, Engine Performance Wiring Diagram, CBFA (4 of 6) for Audi A3 2009:

• (on left headlight) g655
• (or red)
• 27a
• Camshaft position (cmp) sensor (front of cylinder head)
• Computer data lines system
• Engine coolant level/temp warning
• Engine coolant temp
• Engine coolant temperature (ect) sensor (right rear of engine)
• Engine electronics ind
• Fuel gauge
• Fuel pressure sensor (on left side of engine, in fuel rail)
• Fuel reserve warning
• Fuse 10a
• Fuse 15a
• Fuse 5a
• Fuse panel c
• Hot at all times
• Instrument cluster control module
• Knock sensor (ks) 1 (on left front of engine block, near head)
• Knock sensor (ks) 2 (on left rear of engine block, near head)
• Late production
• Mil ind
• Nca
• Oil pressure
• Oil pressure warning
• Red
• Secondary air injection sensor 1
• Switch

2.0L Turbo, Engine Performance Wiring Diagram, CBFA (5 of 6) for Audi A3 2009

List of elements for 2.0L Turbo, Engine Performance Wiring Diagram, CBFA (5 of 6) for Audi A3 2009:

• (on engine block near transmission) engine speed (rpm) sensor
• (on intake air duct) mass air flow (maf) sensor
• (on throttle body) throttle valve control module
• (or red)
• Engine control module (ecm)
• Fuel injectors (right side of engine, below intake manifold)
• Fuse 10a
• Fuse panel c
• Nca
• T60

2.0L Turbo, Engine Performance Wiring Diagram, CBFA (6 of 6) for Audi A3 2009

List of elements for 2.0L Turbo, Engine Performance Wiring Diagram, CBFA (6 of 6) for Audi A3 2009:

• (in charge air pipe) charge air pressure sensor
• (left side of engine) intake air temp- erature (iat) sensor
• (on cylinder head, in intake manifold) intake manifold runner position sensor
• (on left headlight) g655
• (or red)
• Camshaft adjustment valve 1 (top rear of right cylinder head)
• Computer data lines system
• Engine control module (ecm)
• Evaporative emission (evap) canister purge regulator valve (left rear of engine)
• Fuel pressure regulator valve (rear of engine)
• Fuse 10a
• Fuse panel b (integrated in engine compartment e-box)
• Hot at all times
• Intake manifold runner control (imrc) valve
• Nca
• Secondary air injection (air) pump motor
• Secondary air injection (air) solenoid valve
• T40
• T60
• T94
• Turbocharger recalculating valve (top front of engine)
• Wastegate bypass regulator valve (right rear of engine compt)

2.0L Turbo, Engine Performance Wiring Diagram, CCTA (1 of 6) for Audi A3 2009

List of elements for 2.0L Turbo, Engine Performance Wiring Diagram, CCTA (1 of 6) for Audi A3 2009:

• (in left plenum chamber) g607
• (late production)
• 14 pin connector (not used) t14
• Cooling fans system
• Cruise control system
• Early production
• Engine control module (ecm)
• Engine coolant temperature (ect) sensor (w/ radiator) (right rear of engine)
• Fuse 10a
• Fuse 15a
• Fuse 20a
• Fuse 5a
• Fuse panel b (integrated in engine compt e-box)
• Hot at all times
• Late production
• Nca
• Oxygen sensor (o2s) behind three way catalytic converter (twc) (under vehicle, in exhaust)
• Red
• Starting/charging system
• T40
• T94

2.0L Turbo, Engine Performance Wiring Diagram, CCTA (2 of 6) for Audi A3 2009

List of elements for 2.0L Turbo, Engine Performance Wiring Diagram, CCTA (2 of 6) for Audi A3 2009:

• (below left side of dash) vehicle electrical system control module
• (in left (behind left kick panel)
• (m/t) clutch position sensor
• (top of brake pedal assembly) brake light switch
• Abs control module (at right rear of engine compt)
• Coolant circulation pump relay (on fuse panel "b")
• Early production
• Fuse 20a
• Fuse panel b (integrated in engine compt e-box)
• G44
• G44 (behind left kick panel)
• G607
• Heated oxygen sensor (ho2s) (in exhaust, at turbocharger exit)
• Hot at all times
• Late production
• Leak detection pump (ldp) (if equipped)
• Nca
• Plenum chamber)
• Red
• T11b
• T16a
• T40
• T52b
• T52c
• Throttle position (tp) sensor & accelerator pedal position sensor 2 (on accelerator pedal)
• Transmissions system

2.0L Turbo, Engine Performance Wiring Diagram, CCTA (3 of 6) for Audi A3 2009

List of elements for 2.0L Turbo, Engine Performance Wiring Diagram, CCTA (3 of 6) for Audi A3 2009:

• (in left plenum chamber) g607
• (left side of engine, below oil filter) after-run coolant pump
• (on right "c" pillar) g62
• (under right side of rear seat) fuel pump (fp) control module
• (w/ awd) fuel level sensor 2
• Fuel level sensor & transfer fuel pump (fp)
• G15
• G401
• G655 (on left headlight)
• Ignition coils w/ power output stage (top of cylinder head)
• Nca
• Red
• To spark plug

2.0L Turbo, Engine Performance Wiring Diagram, CCTA (4 of 6) for Audi A3 2009

List of elements for 2.0L Turbo, Engine Performance Wiring Diagram, CCTA (4 of 6) for Audi A3 2009:

• 27a
• Camshaft position (cmp) sensor (front of cylinder head)
• Computer data lines system
• Engine coolant level/temp warning
• Engine coolant temp
• Engine coolant temperature (ect) sensor (right rear of engine)
• Engine electronics ind
• Fuel gauge
• Fuel pressure sensor (on left side of engine, in fuel rail)
• Fuel reserve warning
• Fuse 10a
• Fuse 15a
• Fuse panel c
• Hot at all times
• Instrument cluster control module
• Knock sensor (ks) 1 (on left front of engine block, near head)
• Mil ind
• Nca
• Oil pressure switch
• Oil pressure warning

2.0L Turbo, Engine Performance Wiring Diagram, CCTA (5 of 6) for Audi A3 2009

List of elements for 2.0L Turbo, Engine Performance Wiring Diagram, CCTA (5 of 6) for Audi A3 2009:

• (on engine block near transmission) engine speed (rpm) sensor
• (on engine intake air duct) mass air flow (maf) sensor
• (on throttle body) throttle valve control module
• Engine control module (ecm)
• Fuel injectors (right side of engine, below intake manifold)
• Fuse 10a
• Fuse panel c
• Hot at all times
• Nca
• T60

2.0L Turbo, Engine Performance Wiring Diagram, CCTA (6 of 6) for Audi A3 2009

List of elements for 2.0L Turbo, Engine Performance Wiring Diagram, CCTA (6 of 6) for Audi A3 2009:

• (in charge air pipe) charge air pressure sensor
• (left side of engine) intake air temp- erature (iat) sensor
• (on cylinder head, in intake manifold) intake manifold runner position sensor
• Camshaft adjustment valve 1 (top rear of right cylinder head)
• Computer data lines system
• Engine control module (ecm)
• Evaporative emission (evap) canister purge regulator valve (left rear of engine)
• Fuel pressure regulator valve (rear of engine)
• Fuse 10a
• Fuse panel b (integrated in engine compartment e-box)
• Hot at all times
• Intake manifold runner control (imrc) valve
• Nca
• T40
• T60
• T94
• Turbocharger recirculating valve (top front of engine)
• Wastegate bypass regulator valve (right rear of engine compt)

3.2L

3.2L, Engine Performance Wiring Diagram (1 of 5) for Audi A3 2009

List of elements for 3.2L, Engine Performance Wiring Diagram (1 of 5) for Audi A3 2009:

• Computer data lines system
• Coolant circulation pump relay
• Cruise control system
• Early production
• Fuse 10a
• Fuse 15a
• Fuse 30a
• Fuse 40a
• Fuse 5a
• Fuse panel b (integrated in engine compt e-box)
• G607 (in left plenum chamber)
• Heated oxygen sensor (ho2s) 2 (in exhaust, upstream of catalytic converter)
• Heated oxygen sensor (in exhaust, upstream of catalytic converter)
• Hot at all times
• Late production
• Motronic engine control module (ecm) (in center of plenum chamber)
• Nca
• Oxygen sensor (o2s) 2 behind three way catalytic convertor
• Oxygen sensor (o2s) behind three way catalytic convertor (under vehicle, in exhaust)
• Red
• Starting/ charging system
• T16a
• T26
• T40
• T52c
• Throttle position (tp) sensor & accelerator pedal position sensor 2 (on accelerator pedal)
• Vehicle electrical system control module (below left side of dash)

3.2L, Engine Performance Wiring Diagram (2 of 5) for Audi A3 2009

List of elements for 3.2L, Engine Performance Wiring Diagram (2 of 5) for Audi A3 2009:

• (center rear of engine compt) (if equipped) positive crankcase ventilation (pcv) heating element
• (left side of engine, below oil filter) after-run coolant pump
• (rear of engine)
• Brake light switch & brake pedal switch (top of brake pedal assembly)
• Cooling fans system
• Early production
• Engine coolant temperature (ect) sensor (radiator)
• Fuse 10a
• Fuse panel c
• G44 (behind left kick panel)
• G655 (on left headlight)
• Late production
• Leak detection pump (ldp) (if equipped)
• Mass air flow (maf) sensor (on engine air intake duct)
• Red
• Secondary air injection (air) pump motor
• Secondary air injection (air) pump relay
• Secondary air injection (air) solenoid valve (if equipped)
• Secondary air injection (air) solenoid valve 2 (if equipped)
• Secondary air injection sensor 1

3.2L, Engine Performance Wiring Diagram (3 of 5) for Audi A3 2009

List of elements for 3.2L, Engine Performance Wiring Diagram (3 of 5) for Audi A3 2009:

• (below left side of dash) vehicle electrical system control module
• 27a
• Camshaft position (cmp) sensor (rear of cylinder head)
• Camshaft position (cmp) sensor 2 (rear of cylinder head)
• Early production
• Engine coolant temperature (ect) sensor (left side of cylinder head)
• Engine speed (rpm) sensor (left side of engine)
• Fuel pump (fp) 2 relay
• Fuse 10a
• Fuse 15a
• Fuse panel c
• Hot at all times
• Knock sensor (ks) 1 (right front of engine)
• Knock sensor (ks) 2 (left side of cylinder head)
• Late production
• Nca
• Red
• T11b
• T52b

3.2L, Engine Performance Wiring Diagram (4 of 5) for Audi A3 2009

List of elements for 3.2L, Engine Performance Wiring Diagram (4 of 5) for Audi A3 2009:

• (behind center console storage compartment) data bus on board diagnostic interface
• (w/ all wheel drive) fuel level sensor 2
• Computer data lines system
• Early production
• Engine coolant level/temp warning
• Engine coolant temp
• Engine electronics ind
• Fuel gauge
• Fuel reserve warning
• G15
• G401
• G655 (on left headlight)
• Ignition coils (w/ power output stage) (coils 1, 2, 3 & 4: top of cylinder head))
• Instrument cluster control module
• Late production
• Mil ind
• Nca
• Oil pressure switch
• Oil pressure warning
• Red
• Throttle valve control module (on throttle body)
• To spark plugs

3.2L, Engine Performance Wiring Diagram (5 of 5) for Audi A3 2009

List of elements for 3.2L, Engine Performance Wiring Diagram (5 of 5) for Audi A3 2009:

• (left rear of engine) evaporative emission (evap) canister purge regulator valve
• Camshaft adjustment valve 1 (exhaust) (rear of cylinder head)
• Camshaft adjustment valve 1 (rear of cylinder head)
• Cooling fans system
• Early production
• Fuel injectors (injector 1, 2, 3 & 4: right side of engine, below intake manifold)
• Fuel level sensor & transfer fuel pump
• Fuel pump (fp) relay
• Fuse 10a
• Fuse 7 15a
• Fuse panel b (integrated in engine compt e-box)
• G401
• G62 (on right "c" pillar)
• Hot at all times
• Intake manifold tuning (imt) valve (under intake manifold)
• Late production
• Motronic engine control module (ecm) (in center of plenum chamber)
• Red
• T26
• T40