2001 AUDI A8 & S8

Audi A8 L Quattro 2001 - BUZZERS, RELAYS & TIMERS

Audi A8 L Quattro 2001 BUZZERS, RELAYS & TIMERS LOCATION

Component	Component Location
ABS Return Flow Pump Relay (W/ESP)	On relay panel.
ABS Return Flow Pump Relay (W/O ESP)	On right front of ABS hydraulic unit.
ABS Solenoid Valve Relay (W/ESP)	On relay panel.
ABS Solenoid Valve Relay (W/O ESP)	On left front of ABS hydraulic unit.
A/C Clutch Relay	On right front footwell E-box relay panel.
Adjustable Passenger Seat Relay	On right front footwell E-box auxiliary fuse & relay panel.
Coolant Fan Control Relay	Near ABS control module, below left side of dash.
Daytime Running Lights Change-Over Relay	On right front footwell E-box relay panel.
Daytime Running Lights Switch-On Relay	On right front footwell E-box auxiliary fuse & relay panel.
Dual Horn Relay	On right front footwell E-box micro central electric panel.
Dual Horn Relay 2	On right front footwell E-box auxiliary fuse & relay panel.
Emergency Flasher Relay (1)	On relay panel.
Emergency Flasher Relay (2)	On right front footwell E-box auxiliary fuse & relay panel.
Entry & Floor Light Relay	On right front footwell E-box relay panel.
Fuel Pump Relay	On right front footwell E-box micro central electric panel.
Interior/Map Reading Light Relay	On relay panel.
Load Reduction Relay	On right front footwell E-box micro central electric panel.
Motronic Engine Control Module Power Supply Relay	On right front footwell E-box relay panel.
Power Seat Power Supply Relay	On bottom of left front seat.
Rear Headrest Relay (Left/Right)	On respective side of rear seat back.
Secondary Air Injection (AIR) Pump Relay	On plenum chamber E-box relay & fuse panel.
Second Speed Fan Control Relay	Near ABS control module, below left side of dash.
Solar Cell Separation Relay	On right front footwell E-box relay panel.
Starting Interlock Relay	On right front footwell E-box auxiliary fuse & relay panel.
Telephone Cutoff Relay	At left side of luggage compartment.
Third Speed Fan Control Relay	Near ABS control module, below left side of dash.
Wiper/Washer Intermittent Relay	On right front footwell E-box relay panel.

Audi A8 L Quattro 2001 - CIRCUIT PROTECTION DEVICES

Audi A8 L Quattro 2001 CIRCUIT PROTECTION DEVICES LOCATION

Component	Component Location
Fuse Panel	At right front footwell.
Plenum Chamber E-Box	At right rear of engine compartment, in plenum chamber.
Plenum Chamber E-Box Relay & Fuse Panel	In plenum chamber E-box.
Power Seat Circuit Breaker (1)	On right front footwell E-box auxiliary fuse & relay panel.
Power Seat Circuit Breaker (2)	On right front footwell E-box auxiliary fuse & relay panel.
Power Window Circuit Breaker (Front)	On relay panel.
Power Window Circuit Breaker (Rear)	On relay panel.
Protection Diode	In right front footwell E-box.
Relay Panel	At left side of dash, below driver's storage compartment.
Relay & Fuse Panel	At right side of luggage compartment.
Right Front Footwell E-Box	At right front footwell.
Right Front Footwell E-Box Auxiliary Fuse & Relay Panel	In right front footwell E-box.
Right Front Footwell E-Box Micro Central Electric Panel	In right front footwell E-Box.
Right Front Footwell E-Box Relay Panel	In right front footwell E-box.

Audi A8 L Quattro 2001 - CONTROL UNITS

Audi A8 L Quattro 2001 CONTROL UNITS LOCATION

Component	Component Location
ABS Control Module (W/EDL)	Below left side of dash. See Fig. 2 .
Air Bag Control Module	Below center of dash, on transmission tunnel. See Fig. 2 .
Antenna Selection Control Module	Behind lower "C" pillar trim.
Central Locking/Alarm System/Interior Light Delay Module	At left side of luggage compartment, near wheelwell. See Fig. 2 .
Cruise Control Module	In plenum chamber E-box, at right rear of engine compartment.
Fresh Air Blower Control Module	At right rear of engine compartment, in fresh air intake.
Front Lamp Control Module	On right front footwell E-box relay panel.
Front/Rear Fog Light Control Module	On right front footwell E-box relay panel.
Headlight Beam Adjusting Control Module	At base of right "B" pillar, behind trim.
High Intensity Gas Discharge Lamp Control Module (Left/Right)	Behind respective headlight assembly.
Lamp Control Module	On right front footwell E-box relay panel.
Memory Seat Control Module	On bottom of left front seat.
Mirror Fold-Away Function Control Module	On right front footwell E-box relay panel.
Mirror Memory Control Module	At base of left "B" pillar, behind trim. See Fig. 2 .
Motronic Engine Control Module	In plenum chamber E-box. See Fig. 1 .
Multifunction Steering Wheel Control Module	On relay panel. See Fig. 2 .
Multifunction Steering Wheel Interface	Behind instrument cluster.
Operating Electronics & Telephone Control Module	Below rear of center console.
Parking Aid Control Module	Below CD changer unit on left side of luggage compartment. See Fig. 2 .
Power Sunroof Control Module	Above interior light assembly, forward of sunroof.
Power Window Control Module (4)	Integral with window motor, in respective door.
Rear Window Shade Control Module	Below right side of rear parcel shelf. See Fig. 2 .
Servotronic Control Module	On right front footwell E-box relay panel. See Fig. 2 .
Speech Input Control Module	At left side of luggage compartment, in storage compartment.
Steering Column/Belt Height Control Module	Below left front seat. See Fig. 2 .
Telephone/Telematic Control Module	At front of luggage compartment, on bottom of parcel shelf.
Transmission Control Module	In plenum chamber E-box. See Fig. 1 .
Ultrasound Control Module	At left side of luggage compartment. See Fig. 2 .

Audi A8 L Quattro 2001 - MOTORS

Audi A8 L Quattro 2001 MOTORS LOCATION

Component	Component Location
ABS Hydraulic Unit	At left front of engine compartment.
Airflow Flap Motor	At left rear of engine compartment, on fresh air intake.
Center Vent Adjusting Motor	Behind lower left center of dash, on HVAC assembly.
Coolant Pump	At left rear of engine compartment, beside fresh air intake.
Cruise Control Vacuum Pump	Inside front of left front fender.
Deck Lid Central Locking System Motor	Inside right side of trunk lid.
Defroster Flap Motor	Behind left center of dash, on HVAC assembly.
Fresh Air Blower	At center rear of engine compartment, in fresh air intake.
Fuel Pump	In right side of fuel tank, accessible from right front of trunk.
Headlight Washer Pump	On bottom of washer fluid reservoir.
Idle Air Control Valve	At top rear of engine. See Fig. 1 .
Left Center Vent Motor	Behind upper left center of dash, on HVAC assembly.
Left Footwell Flap Motor	Behind lower left center of dash, on HVAC assembly.
Recirculation Flap Motor	At left rear of engine compartment, on fresh air intake.
Rear Footwell Vent Motor	Behind lower left center of dash, on HVAC assembly.
Rear Window Shade Motor	Below center of rear parcel shelf.
Right Center Vent Motor	Behind upper right center of dash, on HVAC assembly.
Right Footwell Flap Motor	Behind lower right center of dash, on HVAC assembly.
Steering Column Adjustment Motor (Axial)	On right side of steering column.
Steering Column Adjustment Motor (Vertical)	On left side of steering column.
Sunroof Motor	Above interior light assembly, forward of sunroof.
Temperature Regulator Flap Motor	Behind right center of dash, on HVAC assembly.
Windshield Washer Pump	On bottom of washer fluid reservoir.

Audi A8 L Quattro 2001 - SENDING UNITS/SENSORS

Audi A8 L Quattro 2001 SENDING UNITS/SENSORS LOCATION

Component	Component Location
ABS Wheel Speed Sensor (4)	On respective wheel hub/spindle assembly.
Anti-Theft Warning System Ultrasound Sensor (Left/Right)	On respective upper "B" pillar, behind trim.
Back Pressure Flap Motor Position Sensor	At left rear of engine compartment, on fresh air intake.
Camshaft Position Sensor	On rear of left cylinder head. See Fig. 1 .
Center Vent Motor Position Sensor	Behind lower left center of dash, on HVAC assembly.
Center Vent Position Sensor	Behind upper center of dash, on HVAC assembly.
Defroster Flap Motor Position Sensor	Behind left center of dash, on HVAC assembly.
Engine Coolant Temperature Sensor (1)	On rear of right cylinder head. See Fig. 1 .
Engine Coolant Temperature Sensor (2)	On top left front of engine block. See Fig. 1 .
Engine Speed (RPM) Sensor	On left front of transmission.
Fresh Air Intake Duct Sensor	At left rear of engine compartment.
Fuel Gauge Sender (1)	In right side of fuel tank, accessible from right front of trunk.
Fuel Gauge Sender (2)	In left side of fuel tank, accessible from left front of trunk.
Heated Oxygen Sensor	Near rear of right exhaust manifold.
Heated Oxygen Sensor 2	Near rear of left exhaust manifold.
Instrument Panel Interior Temperature Sensor	Above A/C controls, in center console.
Intake Air Temperature Sensor	On bottom of throttle body. See Fig. 1 .
Knock Sensor 1	Under intake manifold, below right cylinder head.
Knock Sensor 2	On left side of engine block.
Left Center Vent Motor Position Sensor	Behind upper left center of dash, on HVAC assembly.
Left Footwell Flap Motor Position Sensor	Behind lower left center of dash, on HVAC assembly.
Left Vent Temperature Sensor	Behind left center of dash, on HVAC assembly.
Mass Airflow Sensor	Inside upper air cleaner housing. See Fig. 1 .
Outside Air Temperature Sensor	Behind center of lower radiator grill.
Oxygen Sensor (Behind TWC)	In right exhaust pipe, downstream from three way catalytic converter.
Oxygen Sensor 2 (Behind TWC)	In left exhaust pipe, downstream from three way catalytic converter.
Rear Footwell Vent Motor Position Sensor	Behind lower left center of dash, on HVAC assembly.
Recirculation Flap Motor Position Sensor	At left rear of engine compartment, on fresh air intake.
Right Center Vent Motor Position Sensor	Behind upper right center of dash, on HVAC assembly.
Right Footwell Flap Motor Position Sensor	Behind lower right center of dash, on HVAC assembly.
Right Vent Temperature Sensor	Behind right center of dash, on HVAC assembly.
Seat Occupied Sensor (Front Passenger)	In bottom of right front seat.
Seat Occupied Sensor (Left/Right Rear Passenger)	In bottom of respective rear seat area.
Servotronic Solenoid Valve	On steering gear housing.
Side Air Bag Crash Sensor (Driver's Side)	Below left front seat.
Side Air Bag Crash Sensor (Passenger's Side)	Below right front seat.
Speedometer Vehicle Speed Sensor	On left side of transmission, near left driveshaft flange.
Sunlight Photo Sensor	On top center of middle defrost vent, at top of dash.
Temperature Regulator Flap Motor Position Sensor	Behind right center of dash, on HVAC assembly.
Throttle Position Sensor	On throttle body.
Transmission Output RPM Sensor	On right side of transmission.

Audi A8 L Quattro 2001 - SOLENOIDS & SOLENOID VALVES

Audi A8 L Quattro 2001 SOLENOIDS & SOLENOID VALVES LOCATION

Component	Component Location
Air Control Valve (For Injectors)	On front of intake manifold.
Brake Vacuum Dump Valve	Above brake pedal, on bracket.
Evaporative Emission (EVAP) Canister Purge Regulator Valve	On right side of engine compartment, near air cleaner assembly. See Fig. 1 .
Heat Regulating Valve (Left/Right)	Integral with coolant pump.
Idle Air Control Valve	At top rear of engine. See Fig. 1 .
Intake Manifold Changeover Valve	On front of intake manifold. See Fig. 1 .
Shift Lock Solenoid	Below center console.

Audi A8 L Quattro 2001 - SWITCHES

Audi A8 L Quattro 2001 SWITCHES LOCATION

Component	Component Location
A/C Refrigerant Low Pressure Switch	At left rear of engine compartment, on A/C line.
A/C Refrigerant High Pressure Switch	Below left headlight, on A/C line.
Brake Fluid Level Warning Switch	On brake fluid reservoir.
Brake Light Switch	Above brake pedal, on bracket.
Center Vent Switch (Left)	Behind upper left center of dash, on vent.
Center Vent Switch (Right)	Behind upper right center of dash, on vent.
Central Locking System Activator/Switch (Left/Right)	On respective front door lock cylinder, inside door.
Closed Throttle Position Switch	Integral with throttle position sensor, on throttle body.
Coolant Fan Control Thermal Switch	At lower right side of radiator. See Fig. 1 .
Door Contact Switch (4)	On respective door latch mechanism, inside door.
Engine Coolant Level Warning Switch	At bottom of coolant reservoir.
Hood Alarm Switch	On right rear of engine compartment.
Kick Down Switch	Integral with accelerator cable, near pedal cluster.
Left Seat Belt Switch	Inside left front seat belt buckle.
Multifunction Transmission Range Switch	On left side of transmission.
Oil Pressure Switch	On right side of engine, below exhaust manifold. See Fig. 1 .
Parking Brake Warning Light Switch	Below brake lever, in center console.
Trunk Lid Alarm Switch	In trunk lid latch.
Trunk Lock Alarm/Central Locking Switch	On trunk lock cylinder housing.
Windshield Washer Fluid Level Warning Switch	Integral with washer pump motor, on washer fluid reservoir.

Audi A8 L Quattro 2001 - MISCELLANEOUS

Audi A8 L Quattro 2001 MISCELLANEOUS LOCATION

Component	Component Location
Antenna Splitter	On telephone/telematic control module.
Central Locking/Anti-Theft System Antenna Wire	At left side of luggage compartment, near wheelwell.
Connector Station	At right wheelwell.
Coolant Fan Control Series Resistance	At lower left front of engine compartment.
Electronic Tachograph (Chip Card Reader)	In driver's side shelf box.
Horn (2)	Behind left side of front bumper.
Ignition Coil (8)	Above respective cylinder.
Navigation System (GPS) Antenna	On center of deck lid.
Navigation/Telephone Speaker	On left "B" pillar, behind trim.
Plenum Chamber E-Box Connector Station	In plenum chamber E-box.
Power Antenna	At left side of luggage compartment.
Power Output Stage (1 & 2)	At right side of engine compartment, near washer fluid reservoir cap. See Fig. 1 .
Radio/Telephone Antenna	At left side of luggage compartment.
Seat Belt Tensioner Ignitor (Left Front)	At base of left "B" pillar, under carpet.
Seat Belt Tensioner Ignitor (Left Rear)	Integral with seat belt reel, under left side of rear parcel shelf.
Seat Belt Tensioner Ignitor (Right Front)	At base of right "B" pillar, under carpet.
Seat Belt Tensioner Ignitor (Right Rear)	Integral with seat belt reel, under right side of rear parcel shelf.
Telematic Auxiliary Antenna	In rear bumper.
Telephone Microphone	In interior light assembly.
Telephone/Radio Antenna Amplifier	At left side of luggage compartment, near wheelwell.
Telephone Rod Antenna	At left side of luggage compartment, near wheelwell.
TV/Antenna Amplifier 1	Behind upper right "D" window pillar trim.
TV/Antenna Amplifier 2	Below right side of rear parcel shelf.
TV/Antenna Amplifier 3	Behind upper left "D" window pillar trim.
TV/Antenna Amplifier 4	Below left side of rear parcel shelf.

Audi A8 L Quattro 2001 - CONNECTORS

Audi A8 L Quattro 2001 CONNECTORS LOCATION

Component	Component Location
T6 (Brown, 6 Pin)	On plenum chamber E-box connector station.
T6A (Violet, 6 Pin)	On plenum chamber E-box connector station.
T6AB (6 Pin)	Near inside rear view mirror.
T6B (Gray, 6 Pin)	On connector station.
T6D (White, 6 Pin)	On connector station.
T6E (Brown, 6 Pin)	On plenum chamber E-box connector station.
T6I (Brown, 6 Pin)	Behind steering column switch cover.
T6K (Green, 6 Pin)	Below left front seat.
T6L (Green, 6 Pin)	Below left front seat.
T6T (Red, 6 Pin)	On connector station.
T8G (Black, 8 Pin)	Behind steering column switch cover.
T8L (Black, 8 Pin)	On transmission.
T10 (Blue, 10 Pin)	On plenum chamber E-box connector station.
T10A (Black, 10 Pin)	On plenum chamber E-box connector station.
T10AB (Black, 10 Pin)	On plenum chamber E-box connector station.
T10B (Yellow, 10 Pin)	On plenum chamber E-box connector station.
T10C (Green, 10 Pin)	On plenum chamber E-box connector station.
T10D (Red, 10 Pin)	On plenum chamber E-box connector station.
T10E (Green, 10 Pin)	On connector station.
T10F (Violet, 10 Pin)	On connector station.
T10G (Black, 10 Pin)	Below center console, near gear shift lever.
T10H (Red, 10 Pin)	On connector station.
T10I (Yellow, 10 Pin)	In console.
T10K (Brown, 10 Pin)	Below left front seat.
T10L (Brown, 10 Pin)	Below right front seat.
T10M (Gray, 10 Pin)	On connector station.
T10R (Brown, 10 Pin)	On connector station.
T10S (Black, 10 Pin)	On connector station.
T10V (10 Pin)	Behind left side of front bumper.
T10Z (Brown, 10 Pin)	On plenum chamber E-box connector station.
T13 (Brown, 13 Pin)	Behind steering column switch cover.
T14 (Violet, 14 Pin)	Behind steering column switch cover.
T15 (Brown, 15 Pin)	In console.

Audi A8 L Quattro 2001 - GROUNDS

Audi A8 L Quattro 2001 GROUNDS LOCATION

Component	Component Location
G12	On left side of engine compartment.
G18	On engine block.
G43	Above right kick panel. See Fig. 3 .
G44	Above left kick panel. See Fig. 3 .
G45	Behind center of dash. See Fig. 3 .
G49	Near fuel pump. See Fig. 3 .
G51	On right side of luggage compartment. See Fig. 3 .
G59	Near left taillight. See Fig. 3 .
G60	Near right taillight. See Fig. 3 .
G75	On right rear pillar, near filler neck. See Fig. 3 .
G79	On filler neck.
G600	On right cylinder head.
G601	On left cylinder head.