ENGINE PERFORMANCE – Audi A8 L Quattro 2007 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

4.2L

4.2L, Engine Performance Wiring Diagram (1 of 5) for Audi A8 L Quattro 2007

List of elements for 4.2L, Engine Performance Wiring Diagram (1 of 5) for Audi A8 L Quattro 2007:

• (rear of cylinder bank no 2) camshaft position sensor 4
• (rear of cylinder bank no. 1) mass air flow (maf) sensor
• (top of cylinder bank no 2) camshaft position sensor 2
• (top of cylinder bank no 2) low fuel pressure sensor
• Anti-lock brakes system
• Anti-theft system starting/ charging system
• Brake booster pressure sensor
• Brake pedal switch
• Comfort system central control module
• Cooling fans system
• Cruise control system
• Engine control module (ecm) (in passenger's side plenum chamber e-box)
• Fuse 5a
• G43 (behind right kick panel)
• G44 (behind left kick panel)
• Heated oxygen sensor (downstream of right 3-way catalytic converter)
• Heated oxygen sensor 2 (upstream of left 3-way catalytic converter)
• Heated oxygen sensor 2 behind 3-way catalytic converter (twc) (downstream of left 3-way catalytic converter)
• Heated oxygen sensor behind 3-way catalytic converter (twc) (downstream of right 3-way catalytic converter)
• Kick down switch (under accelerator pedal)
• Nca
• Partial
• Right instrument panel fuse panel (in right end of dash)
• Starting/ charging system
• T10q
• T94
• Transmissions system

4.2L, Engine Performance Wiring Diagram (2 of 5) for Audi A8 L Quattro 2007

List of elements for 4.2L, Engine Performance Wiring Diagram (2 of 5) for Audi A8 L Quattro 2007:

• (left front of engine) intake flap motor
• (rear of cylinder bank no 1) camshaft adjustment valve 1
• (rear of cylinder bank no 1) camshaft adjustment valve 1 (exhaust)
• (rear of cylinder bank no 2) camshaft adjustment valve 2
• (rear of cylinder bank no 2) camshaft adjustment valve 2 (exhaust)
• (right front of engine) variable intake manifold runner motor
• (top of cylinder bank no 1) camshaft position sensor
• 12a
• 22a
• Fuel pump
• Fuel pump control module
• Fuel pump relay (on right kick panel relay & fuse panel)
• Fuse 40a
• Fuse 5a
• G43 (behind right kick panel)
• G51 (right rear of luggage compt)
• G675 (right side of luggage compt)
• Hot at all times
• Left instrument panel fuse panel (in left end of dash)
• Map controlled engine cooling thermostat
• Right luggage compartment fuse panel (right side of luggage compt)
• Throttle position (tp) & accelerator pedal position (app) sensor 2 (on accelerator pedal)
• Transfer fuel pump

4.2L, Engine Performance Wiring Diagram (3 of 5) for Audi A8 L Quattro 2007

List of elements for 4.2L, Engine Performance Wiring Diagram (3 of 5) for Audi A8 L Quattro 2007:

• (front of cylinder bank no 1) intake manifold runner position sensor
• (front of cylinder bank no 2) intake manifold runner position sensor 2
• (rear of cylinder bank no 1) engine coolant temperature (ect) sensor
• (right side of cylinder bank no 1) camshaft position sensor 3
• 31a nca
• 38a nca
• Engine control module (ecm) (in passenger's side plenum chamber e-box)
• Fuel pressure sensor
• Fuse 10a
• Fuse 15a
• Fuse 30a
• Fuse 40a
• Fuse 5a
• Knock sensor (ks) 1 (inner side of cylinder bank no 1)
• Knock sensor (ks) 2 (inner side of cylinder bank no 1)
• Knock sensor 3 (inner side of cylinder bank no 2)
• Knock sensor 4 (inner side of cylinder bank no 2)
• Nca
• Partial
• Red
• Right instrument panel fuse panel (in right end of dash)
• T60

4.2L, Engine Performance Wiring Diagram (4 of 5) for Audi A8 L Quattro 2007

List of elements for 4.2L, Engine Performance Wiring Diagram (4 of 5) for Audi A8 L Quattro 2007:

• (in left rear wheelwell) leak detection pump (ldp)
• (left rear of engine) evaporative emission canister purge regulator valve
• (left side of engine compt) left electro- hydraulic engine mount solenoid valve
• (right front of engine compt) intake air switch- over valve
• (right front of engine) right electro- hydraulic engine mount solenoid valve
• (top of cylinder bank no 1) fuel metering valve
• (top of cylinder bank no 2) fuel metering valve 2
• 1a red
• 3a red
• Coil 1
• Coil 2
• Coil 3
• Coil 4
• Coil 5
• Coil 6
• Coil 7
• Coil 8
• Fuse 150a
• Fuse 50a
• G15 (on cylinder head)
• G17 (on intake manifold)
• G43 (behind right kick panel)
• Hot at all times
• Nca
• Plenum chamber e-box relay panel (in plenum chamber e-box)
• Red
• Right luggage compart- ment fuse panel (right side of luggage
• Secondary air injection (air) pump relay
• To spark plug

4.2L, Engine Performance Wiring Diagram (5 of 5) for Audi A8 L Quattro 2007

List of elements for 4.2L, Engine Performance Wiring Diagram (5 of 5) for Audi A8 L Quattro 2007:

• Brake booster relay
• Brake system vacuum pump
• Computer data lines system
• Cooling fans system (fuse 17)
• Engine control module (ecm) (in passenger's side plenum chamber e-box)
• Engine speed (rpm) sensor (left rear of engine)
• Evaporative emission canister purge solenoid valve 2 (left rear of engine)
• Fuel injectors
• G43 (behind right kick panel)
• Partial
• Plenum chamber e-box relay panel (in plenum chamber e-box)
• Red
• Secondary air injection (air) pump motor (between right front bumper & wheelwell line)
• Starting/ charging system
• T60
• T94
• Throttle valve control module (behind intake manifold, on throttle valve housing)

6.0L

6.0L, Engine Performance Wiring Diagram (1 of 7) for Audi A8 L Quattro 2007

List of elements for 6.0L, Engine Performance Wiring Diagram (1 of 7) for Audi A8 L Quattro 2007:

• (in plenum chamber e-box) plenum chamber e-box relay panel
• (partial)
• (under left side of dash) data link connector
• 12a
• 22a
• 3a red
• A17
• Access/start control module (under driver's seat)
• Anti-lock brakes system
• Brake light switch
• Computer data lines system
• Cooling fans system
• Cruise control system
• Engine control module (in passenger's side plenum chamber e-box)
• Evaporative emission canister purge solenoid valve (left rear of engine)
• Exterior lights system
• Fuse 150a
• Fuse 30a
• Fuse 5a
• G43 (behind right kick panel)
• G44 (behind left kick panel)
• Hot at all times
• Left instrument panel fuse panel (behind left side of dash)
• Mass air flow sensor (left front of engine compt)
• Red
• Right instrument panel fuse panel (right end of dash)
• Right luggage compartment fuse panel (right side of luggage compt)
• Secondary air injection pump motor (in lower part of air filter housing)
• Secondary air injection pump relay
• Secondary air pump fuse 50a
• Starting/ charging system
• T81
• Throttle position sensor (on accelerator pedal)
• Transmission controls system
• Transmissions system

6.0L, Engine Performance Wiring Diagram (2 of 7) for Audi A8 L Quattro 2007

List of elements for 6.0L, Engine Performance Wiring Diagram (2 of 7) for Audi A8 L Quattro 2007:

• (in left rear wheelwell) leak detection pump (ldp)
• (left rear of engine) evaporative emission canister purge regulator valve 2
• (left side of engine compt) left electro- hydraulic engine mount solenoid valve
• (right front of engine) right electro- hydraulic engine mount solenoid valve
• Behind three way catalytic converter (twc) (downstream of exhaust bank no. 2 catalytic converter)
• Converter)
• Evaporative emission canister purge regulator valve
• Exhaust flap valve 1
• Exhaust flap valve 2
• Fuse 10a
• Heated oxygen sensor (ho2s) 1
• Heated oxygen sensor (ho2s) 2
• Heated oxygen sensor (ho2s) 3
• Heated oxygen sensor (ho2s) 4
• Nca
• Oxygen sensor 1 behind three way catalytic converter (twc) (downstream of exhaust bank no. 1 catalytic
• Oxygen sensor 2
• Oxygen sensor 4 behind three way catalytic converter (twc) (downstream of exhaust bank no. 4 catalytic converter)
• Red
• Right instrument panel fuse panel (in right end of dash)

6.0L, Engine Performance Wiring Diagram (3 of 7) for Audi A8 L Quattro 2007

List of elements for 6.0L, Engine Performance Wiring Diagram (3 of 7) for Audi A8 L Quattro 2007:

• (partial)
• Camshaft position sensor (cmp) (rear of cylinder bank no. 2)
• Camshaft position sensor (cmp) 3 (rear of cylinder bank no. 1)
• Computer data lines system
• Engine control module 2 (in passenger's side plenum t81a chamber e-box)
• Engine coolant temperature sensor (rear of cylinder bank no)
• Engine speed sensor (left rear of engine)
• G43 (behind right kick panel)
• Knock sensor 1 (right front of engine crankcase)
• Knock sensor 2 (right side of engine crankcase)
• Mass air flow sensor 2 (right front of engine compt)
• Nca
• Oxygen sensor 3 behind three way catalytic converter (twc) (downstream of exhaust bank no. 3 catalytic converter)
• Red

6.0L, Engine Performance Wiring Diagram (4 of 7) for Audi A8 L Quattro 2007

List of elements for 6.0L, Engine Performance Wiring Diagram (4 of 7) for Audi A8 L Quattro 2007:

• (2006 models only)
• (center rear of engine) map controlled engine cooling thermostat
• (rear of cylinder bank no. 1) camshaft adjustment valve 1
• (rear of cylinder bank no. 1) camshaft adjustment valve 1 (exhaust)
• (rear of cylinder bank no. 2) camshaft adjustment valve 2
• (rear of cylinder bank no. 2) camshaft adjustment valve 2 (exhaust)
• 28a
• 29a
• 31a
• Fuel pump pump relay (on right kick panel relay & fuse panel)
• Fuse 15a
• Fuse 20a
• Fuse 5a
• G43 (behind right kick panel)
• G600 (on right cylinder head)
• Ignition coil 1
• Ignition coil 2
• Ignition coil 3
• Ignition coil 4
• Ignition coil 5
• Ignition coil 6
• Nca
• Plug spark
• Red
• Right instrument panel fuse panel (in right end of dash)
• Spark plug
• Torque support valve

6.0L, Engine Performance Wiring Diagram (5 of 7) for Audi A8 L Quattro 2007

List of elements for 6.0L, Engine Performance Wiring Diagram (5 of 7) for Audi A8 L Quattro 2007:

• (in plenum chamber e-box) plenum chamber e-box relay panel
• (on cylinder bank no. 2 throttle body) throttle valve control module 2
• G43 (behind right kick panel)
• G44 (behind left kick panel)
• G600 (on right cylinder head)
• Ignition coil 10
• Ignition coil 11
• Ignition coil 12
• Ignition coil 7
• Ignition coil 8
• Ignition coil 9
• Nca
• Plug spark
• Red
• Secondary air injection pump motor 2 (in lower air part of filter housing)
• Secondary air injection pump relay 2
• Secondary air pump fuse 50a
• Spark plug

6.0L, Engine Performance Wiring Diagram (6 of 7) for Audi A8 L Quattro 2007

List of elements for 6.0L, Engine Performance Wiring Diagram (6 of 7) for Audi A8 L Quattro 2007:

• (left side of engine crankcase)
• (on cylinder bank no. 1 throttle body) throttle valve control module
• (partial)
• (rear of cylinder bank no.1) camshaft position sensor (cmp) 2
• (rear of cylinder bank no.2) camshaft position sensor (cmp) 4
• Engine control module 2 (in passenger's side plenum chamber e-box)
• Instrument cluster
• Instrument cluster display unit
• Knock sensor 3
• Knock sensor 4
• Nca
• Red
• T32
• T40a
• T81a

6.0L, Engine Performance Wiring Diagram (7 of 7) for Audi A8 L Quattro 2007

List of elements for 6.0L, Engine Performance Wiring Diagram (7 of 7) for Audi A8 L Quattro 2007:

• (partial)
• Compt relay & fuse panel (right side of luggage compt
• Cooling fans system
• Engine control module (in passenger's side plenum chamber e-box)
• Fuel gauge sender
• Fuel injectors
• Fuel level sensor 2
• Fuel pump
• Fuel pump 2 relay
• Fuse 20a
• G44 (behind left kick panel)
• G675 (right side of luggage compt)
• Hot at all times
• Kick down switch (under accelerator pedal)
• Red
• Right luggage compt fuse panel (right side of luggage compt)
• Starting/ charging system
• T40
• T81
• Transfer fuel pump