ENGINE PERFORMANCE – Audi A8 Quattro 2005 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

4.2L

4.2L, Engine Performance Wiring Diagram (1 of 4) for Audi A8 Quattro 2005

List of elements for 4.2L, Engine Performance Wiring Diagram (1 of 4) for Audi A8 Quattro 2005:

• (in plenum chamber e-box) plenum chamber e-box relay panel
• (under left side of dash) data link connector
• 12a
• 21a
• 22a
• 30a
• Anti-lock brakes system
• Brake light switch
• Computer data lines system
• Cruise control system
• Engine control module (on passenger's side plenum chamber e-box)
• Evaporative emission canister purge solenoid valve
• Exterior lights system
• Fuse 150a
• Fuse 30a
• Fuse 50a
• Fuse 5a
• G43 (above right kick panel)
• Hot at all times
• Left instrument panel fuse panel (behind left side of dash)
• Mass air flow sensor
• Red
• Right instrument panel fuse panel (behind right side of dash)
• Right luggage compart fuse panel (right side of luggage compt)
• Secon- dary air injection pump relay
• Secondary air injection pump motor (between right front bumper & wheelwell liner)
• Starting/ charging system
• T81
• Throttle position sensor (on accelerator pedal)
• Transmission controls system

4.2L, Engine Performance Wiring Diagram (2 of 4) for Audi A8 Quattro 2005

List of elements for 4.2L, Engine Performance Wiring Diagram (2 of 4) for Audi A8 Quattro 2005:

• (left rear whellwell) leak detection pump (ldp)
• (left side of engine compt) left electro- hydraulic engine mount solenoid valve
• (right side of engine compt) right electro- hydraulic engine mount solenoid valve
• Camshaft position sensor (cmp)
• Camshaft position sensor (cmp) 2
• Engine coolant temperature sensor
• Evaporative emission canister purge regulator valve
• Fuse 10a
• Heated oxygen sensor (ho2s)
• Heated oxygen sensor (ho2s) 2
• Intake air switch over valve
• Intake change over valve
• Nca
• Oxygen sensor (behind twc)
• Oxygen sensor 2 (behind twc)
• Red
• Right instrument panel fuse panel (behind right side of dash)
• Secondary air injection solenoid valve

4.2L, Engine Performance Wiring Diagram (3 of 4) for Audi A8 Quattro 2005

List of elements for 4.2L, Engine Performance Wiring Diagram (3 of 4) for Audi A8 Quattro 2005:

• 28a
• 29a
• 31a
• Camshaft adjustment valve 1
• Camshaft adjustment valve 2
• Fuel pump relay
• Fuse 15a
• Fuse 20a
• Fuse 5a
• G17 (on intake manifold)
• G43 (above right kick panel)
• Ignition coil 1
• Ignition coil 2
• Ignition coil 3
• Ignition coil 4
• Ignition coil 5
• Ignition coil 6
• Ignition coil 7
• Ignition coil 8
• Instrument cluster
• Instrument cluster combination processor
• Nca
• Plug spark
• Red
• Right instrument panel fuse panel (behind right side of dash)
• Right kick panel relay panel (right front kick panel)
• Spark plug
• T32
• Torque support valve

4.2L, Engine Performance Wiring Diagram (4 of 4) for Audi A8 Quattro 2005

List of elements for 4.2L, Engine Performance Wiring Diagram (4 of 4) for Audi A8 Quattro 2005:

• Compt relay & fuse panel (right side of luggage compt)
• Cooling fans system
• Engine control module (on passenger's side plenum chamber e-box)
• Engine speed sensor
• Fuel gauge sender
• Fuel injectors
• Fuel level sensor 2
• Fuel pump
• Fuel pump 2 relay
• Fuse 20a
• G44 (above left kick panel)
• G675 (right side of luggage compt)
• Hot at all times
• Kick down switch (under accelerator pedal)
• Knock sensor 1
• Knock sensor 2
• Nca
• Red
• Right luggage compt fuse panel (right side of luggage compt)
• Starting/ charging system
• T40
• T81
• Throttle valve control module (behind intake manifold on throttle valve housing)
• Transfer fuel pump

6.0L

6.0L, Engine Performance Wiring Diagram (1 of 7) for Audi A8 Quattro 2005

List of elements for 6.0L, Engine Performance Wiring Diagram (1 of 7) for Audi A8 Quattro 2005:

• (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 (on passenger's side plenum chamber e-box)
• Evaporative emission canister purge solenoid valve
• Fuse 150a
• Fuse 30a
• Fuse 5a
• G43 (above right kick panel)
• G44 (above left kick panel)
• Hot at all times
• Left instrument panel fuse panel (behind left side of dash)
• Mass air flow sensor
• Red
• Right instrument panel fuse panel (behind right side of dash)
• Right luggage compartment fuse panel (right side of luggage compt)
• Secondary air injection pump motor (between right front bumper & wheelwell liner)
• 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 Quattro 2005

List of elements for 6.0L, Engine Performance Wiring Diagram (2 of 7) for Audi A8 Quattro 2005:

• (left rear wheelwell) leak detection pump (ldp)
• (left side of engine compt) left electro- hydraulic engine mount solenoid valve
• (right side of engine compt) right electro- hydraulic engine mount solenoid valve
• Evaporative emission canister purge regulator valve
• Evaporative emission canister purge regulator valve 2
• Exhaust flap valve 1
• Exhaust flap valve 2
• Fuse 10a
• Heated oxygen sensor (ho2s)
• Heated oxygen sensor (ho2s) 2
• Heated oxygen sensor (ho2s) 3
• Heated oxygen sensor (ho2s) 4
• Nca
• Oxygen sensor (behind twc)
• Oxygen sensor 2 (behind twc)
• Oxygen sensor 4 (behind twc)
• Red
• Right instrument panel fuse panel (behind right side of dash)

6.0L, Engine Performance Wiring Diagram (3 of 7) for Audi A8 Quattro 2005

List of elements for 6.0L, Engine Performance Wiring Diagram (3 of 7) for Audi A8 Quattro 2005:

• (partial)
• Camshaft position sensor (cmp)
• Camshaft position sensor (cmp) 3
• Computer data lines system
• Engine control module 2 (on passenger's side plenum t81a chamber e-box)
• Engine coolant temperature sensor
• Engine speed sensor
• G43 (above right kick panel)
• Knock sensor 1
• Knock sensor 2
• Mass air flow sensor 2
• Nca
• Oxygen sensor 3 (behind twc)
• Red

6.0L, Engine Performance Wiring Diagram (4 of 7) for Audi A8 Quattro 2005

List of elements for 6.0L, Engine Performance Wiring Diagram (4 of 7) for Audi A8 Quattro 2005:

• 28a
• 29a
• 31a
• Camshaft adjustment valve 1
• Camshaft adjustment valve 1 (exhaust)
• Camshaft adjustment valve 2
• Camshaft adjustment valve 2 (exhaust)
• Fuel pump relay
• Fuse 15a
• Fuse 20a
• Fuse 5a
• G43 (above 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
• Map controlled engine cooling thermostat
• Nca
• Plug spark
• Red
• Right instrument panel fuse panel (behind right side of dash)
• Right kick panel relay panel (right front kick panel)
• Spark plug
• Torque support valve

6.0L, Engine Performance Wiring Diagram (5 of 7) for Audi A8 Quattro 2005

List of elements for 6.0L, Engine Performance Wiring Diagram (5 of 7) for Audi A8 Quattro 2005:

• (in plenum chamber e-box) plenum chamber e-box relay panel
• (under right cylinder bank trim) throttle valve control module
• G43 (above right kick panel)
• G44 (above 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 (between right front bumper & wheelwell liner)
• 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 Quattro 2005

List of elements for 6.0L, Engine Performance Wiring Diagram (6 of 7) for Audi A8 Quattro 2005:

• (partial)
• (under left cylinder bank trim) throttle valve control module
• Camshaft position sensor (cmp) 2
• Camshaft position sensor (cmp) 4
• Engine control module 2 (on 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 Quattro 2005

List of elements for 6.0L, Engine Performance Wiring Diagram (7 of 7) for Audi A8 Quattro 2005:

• (partial)
• Compt relay & fuse panel (right side of luggage compt
• Cooling fans system
• Engine control module (on 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 (above 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