ENGINE PERFORMANCE – Audi A8 Quattro 2009 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

4.2L

4.2L, Engine Performance Wiring Diagram (1 of 5) for Audi A8 Quattro 2009

List of elements for 4.2L, Engine Performance Wiring Diagram (1 of 5) for Audi A8 Quattro 2009:

• (rear of cylinder bank 2) camshaft position sensor 4
• (top of cylinder bank 2) camshaft position sensor 2
• (top of cylinder bank 2) low fuel pressure sensor
• Anti-lock brakes system
• Anti-theft system starting/ charging system
• Brake booster pressure sensor
• Brake pedal switch & brake light switch
• Comfort system central control module (right side of luggage compt)
• 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 (upstream of right 3-way catalytic converter)
• Heated oxygen sensor 2 (downstream of left 3-way catalytic converter)
• Heated oxygen sensor 2 (upstream of left 3-way catalytic converter)
• Kick down switch (under accelerator pedal)
• Mass air flow (maf) sensor & intake air temperature sensor
• Nca
• Partial
• Right instrument panel fuse holder (in right end of dash)
• Starting/ charging system
• T10q
• T94
• Transmissions system

4.2L, Engine Performance Wiring Diagram (2 of 5) for Audi A8 Quattro 2009

List of elements for 4.2L, Engine Performance Wiring Diagram (2 of 5) for Audi A8 Quattro 2009:

• (rear of cylinder bank 1) camshaft adjustment valve 1
• (rear of cylinder bank 1) camshaft adjustment valve 1 (exhaust)
• (rear of cylinder bank 2) camshaft adjustment valve 2
• (rear of cylinder bank 2) camshaft adjustment valve 2 (exhaust)
• (top of cylinder bank 1) camshaft position sensor
• 22a
• Anti-lock brakes system
• Fuel pump
• Fuel pump control module
• Fuel pump relay (on right kick panel relay & fuse panel)
• Fuse 40a
• Fuse 5a
• G51 (right rear of luggage compt)
• G675 (right side of luggage compt)
• Hot at all times
• Intake manifold runner control valve
• Intake manifold runner control valve 2
• Left instrument panel fuse holder (in left end of dash)
• Map controlled engine cooling thermostat
• Right luggage compartment fuse panel (right side of luggage compt)
• Throttle position & accelerator pedal position sender 2 (on accelerator pedal)
• Transfer fuel pump

4.2L, Engine Performance Wiring Diagram (3 of 5) for Audi A8 Quattro 2009

List of elements for 4.2L, Engine Performance Wiring Diagram (3 of 5) for Audi A8 Quattro 2009:

• (front of cylinder bank 1) intake manifold runner position sensor
• (front of cylinder bank 2) intake manifold runner position sensor 2
• (rear of cylinder bank 1) engine coolant temperature (ect) sensor
• (right side of cylinder bank 1) camshaft position sensor 3
• Engine control module (ecm) (in passenger's side plenum chamber e-box)
• Fuse 10a
• Fuse 15a
• Fuse 30a
• Fuse 40a
• Fuse 5a
• Knock sensor 1 (inner side of cylinder bank 1)
• Knock sensor 2 (inner side of cylinder bank 1)
• Knock sensor 3 (inner side of cylinder bank 2)
• Knock sensor 4 (inner side of cylinder bank 2)
• Nca
• Red
• Right instrument panel fuse holder (in right end of dash)
• T60
• Top front of engine fuel pressure sensor

4.2L, Engine Performance Wiring Diagram (4 of 5) for Audi A8 Quattro 2009

List of elements for 4.2L, Engine Performance Wiring Diagram (4 of 5) for Audi A8 Quattro 2009:

• (in left rear wheel well) leak detection pump (ldp)
• (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 1) fuel metering valve
• (top of cylinder bank 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
• Evaporative emission canister purge regulator valve
• Fuse 150a
• Fuse 50a
• G15
• G17
• G43 (behind right kick panel)
• Hot at all times
• Ignition coils (1, 2, 3, 4: top of cylinder bank 1) (5, 6, 7, 8: top of cylinder bank 2)
• Nca
• Plenum chamber e-box relay panel
• Red
• Right luggage compartment fuse holder (right side of luggage compt)
• Secondary air injection (air) pump relay
• To spark plug

4.2L, Engine Performance Wiring Diagram (5 of 5) for Audi A8 Quattro 2009

List of elements for 4.2L, Engine Performance Wiring Diagram (5 of 5) for Audi A8 Quattro 2009:

• Brake booster relay
• Brake system vacuum pump
• Computer data lines system
• Cooling fans system
• 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)
• G44 (behind left kick panel)
• Plenum chamber e-box relay panel
• Red
• Right luggage compartment fuse holder (right side of luggage compt)
• Secondary air injection (air) pump motor (between right front bumper & wheelwell liner)
• 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 Quattro 2009

List of elements for 6.0L, Engine Performance Wiring Diagram (1 of 7) for Audi A8 Quattro 2009:

• (on accelerator pedal)
• (under left side of dash) data link connector
• 22a
• 3a red
• A17
• Access/start control module (under driver's seat)
• Anti-lock brakes system
• App sensor 2
• Brake light switch & brake pedal switch
• Computer data lines system
• Cooling fans system
• Cruise control system
• Engine control module (ecm) (in passenger's side plenum chamber e-box)
• Evaporative emission canister purge solenoid valve
• Fuse 150a
• Fuse 30a
• Fuse 5a
• G43 (behind right kick panel)
• G44 (behind left kick panel)
• Hot at all times
• Left instrument panel fuse holder (in left end of dash)
• Mass air flow sensor & intake air temperature sensor
• Plenum chamber e-box relay panel
• Red
• Right instrument panel fuse holder (in right end of dash)
• Right luggage compartment fuse holder (right side of luggage compt)
• Secondary air injection (air) pump fuse 50a
• Secondary air injection (air) pump motor (in lower part of air filter housing)
• Secondary air injection (air) pump relay
• Starting/ charging system
• T81
• Throttle position sensor & accelerator pedal position sender 2
• Tp sensor
• Transmission controls system
• Transmissions system

6.0L, Engine Performance Wiring Diagram (2 of 7) for Audi A8 Quattro 2009

List of elements for 6.0L, Engine Performance Wiring Diagram (2 of 7) for Audi A8 Quattro 2009:

• (in left rear wheel well) 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
• Evaporative emission canister purge regulator valve
• Exhaust flap valve 1
• Exhaust flap valve 2
• Fuse 10a
• Heated oxygen sensor (ho2s) (upstream of exhaust bank 1 catalytic converter)
• Heated oxygen sensor (ho2s) 2 (upstream of exhaust bank 2 catalytic converter)
• Heated oxygen sensor (ho2s) 3 (upstream of exhaust bank 3 catalytic converter)
• Heated oxygen sensor (ho2s) 4 (upstream of exhaust bank 4 catalytic converter)
• Heated oxygen sensor (o2s) 1 (downstream of exhaust bank 1 catalytic converter)
• Heated oxygen sensor (o2s) 2 (downstream of exhaust bank 2 catalytic converter)
• Heated oxygen sensor (o2s) 4 (downstream of exhaust bank 4 catalytic converter)
• Nca
• Red
• Right instrument panel fuse holder (in right end of dash)

6.0L, Engine Performance Wiring Diagram (3 of 7) for Audi A8 Quattro 2009

List of elements for 6.0L, Engine Performance Wiring Diagram (3 of 7) for Audi A8 Quattro 2009:

• Camshaft position (cmp) sensor 3 (rear of cylinder bank 1)
• Camshaft position sensor (cmp) (rear of cylinder bank 2)
• Computer data lines system
• Engine control module (ecm) (in passenger's side plenum t81a chamber e-box)
• Engine coolant temperature sensor
• Engine speed sensor (left rear of engine)
• G43 (behind right kick panel)
• Heated oxygen sensor (o2s) 3 (downstream of exhaust bank 3 catalytic converter)
• Knock sensor 1 (right front of engine crankcase)
• Knock sensor 2 (right side of engine crankcase)
• Mass air flow sensor 2 & intake air temperature sensor 2 (right front of engine compt)
• Nca
• Red

6.0L, Engine Performance Wiring Diagram (4 of 7) for Audi A8 Quattro 2009

List of elements for 6.0L, Engine Performance Wiring Diagram (4 of 7) for Audi A8 Quattro 2009:

• (center rear of engine) map controlled engine cooling thermostat
• (rear of cylinder bank 1) camshaft adjustment valve 1 (exhaust)
• (rear of cylinder bank 2) camshaft adjustment valve 2
• (rear of cylinder bank 2) camshaft adjustment valve 2 (exhaust)
• 28a
• 29a
• 31a
• Camshaft adjustment valve 1
• Fuel injectors (top of cylinder bank 1)
• Fuel pump (fp) relay (on right kick panel relay & fuse panel)
• Fuse 15a
• Fuse 20a
• Fuse 5a
• G43 (behind right kick panel)
• G600
• 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 holder (in right end of dash)
• Spark plug
• Torque support valve

6.0L, Engine Performance Wiring Diagram (5 of 7) for Audi A8 Quattro 2009

List of elements for 6.0L, Engine Performance Wiring Diagram (5 of 7) for Audi A8 Quattro 2009:

• (on cylinder bank no. 2 throttle body) throttle valve control module 2
• 50a
• G43 (behind right kick panel)
• G44 (behind left kick panel)
• G600
• Ignition coils
• Nca
• Plenum chamber e-box relay panel
• Plug spark
• Red
• Secondary air injection (air) pump relay 2
• Secondary air injection pump fuse 2
• Secondary air injection pump motor 2 (in lower part of air)
• Spark plug

6.0L, Engine Performance Wiring Diagram (6 of 7) for Audi A8 Quattro 2009

List of elements for 6.0L, Engine Performance Wiring Diagram (6 of 7) for Audi A8 Quattro 2009:

• (left side of engine crankcase)
• (on cylinder bank 1 throttle body) throttle valve control module
• (rear of cylinder bank 1) camshaft position sensor (cmp) 2
• (rear of cylinder bank 2) camshaft position sensor (cmp) 4
• Engine control module (ecm) (in passenger's side plenum chamber e-box)
• Instrument cluster control module
• 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 Quattro 2009

List of elements for 6.0L, Engine Performance Wiring Diagram (7 of 7) for Audi A8 Quattro 2009:

• Compartment relay & fuse holder (right side of luggage compt)
• Cooling fans system
• Engine control module (ecm) (in passenger's side plenum chamber e-box)
• Fuel injectors (top of cylinder bank 1)
• Fuel injectors (top of cylinder bank 2)
• Fuel level sender
• Fuel level sensor 2
• Fuel level sensor 3
• 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 compartment fuse panel (right side of luggage compt)
• Starting/ charging system
• T40
• T81
• Transfer fuel pump, fuel level sender & fuel level sensor 3