A4 Quattro Wagon L4-1.8L Turbo (AWM) (2001): Sensors and Switches

Also for this vehicle: A4 Cabriolet L4-1.8L Turbo (AMB) (2005), A4 Cabriolet L4-2.0L Turbo (BWT) (2007), A4 Cabriolet Mk2, A4 Cabriolet V6-3.0L (AVK) (2003), A4 Mk1, A4 Mk2, A4 Mk3, A4 Quattro Cabriolet L4-2.0L Turbo (BWT) (2009), A4 Quattro Cabriolet V6-3.0L (BGN) (2005), A4 Quattro Cabriolet V6-3.2L (BKH) (2007), A4 Quattro Sedan L4-1.8L Turbo (AEB) (1998), A4 Quattro Sedan L4-1.8L Turbo (ATW) (2000), A4 Quattro Sedan L4-1.8L Turbo (AWM) (2001), A4 Quattro Sedan L4-2.0L Turbo (BPG) (2005), A4 Quattro Sedan L4-2.0L Turbo (CAEB) (2009), A4 Quattro Sedan V6-2.8L (ACK) (1997), A4 Quattro Sedan V6-3.0L (AVK) (2002), A4 Quattro Sedan V6-3.2L (BKH) (2005), A4 Quattro Wagon (8K5) L4-2.0L Turbo (CAEB) (2011), A4 Quattro Wagon L4-1.8L Turbo (AEB) (1999), A4 Quattro Wagon L4-1.8L Turbo (ATW) (2000), A4 Quattro Wagon L4-2.0L Turbo (BPG) (2005), A4 Quattro Wagon L4-2.0L Turbo (CAEB) (2009), A4 Quattro Wagon V6-2.8L (AHA) (1998), A4 Quattro Wagon V6-3.0L (AVK) (2002), A4 Quattro Wagon V6-3.2L (BKH) (2005), A4 Sedan L4-1.8L Turbo (AEB) (1997), A4 Sedan L4-1.8L Turbo (ATW) (2000), A4 Sedan L4-1.8L Turbo (AWM) (2001), A4 Sedan L4-2.0L Turbo (BPG) (2005), A4 Sedan V6-2.8L (AFC) (1996), A4 Sedan V6-2.8L (AHA) (1998), A4 Sedan V6-3.0L (AVK) (2002), A4 Sedan V6-3.2L (BKH) (2007), A4 V6-3.0L (AVK) (2004).

Diagnostics Maintenance Engine Transmission Brakes Electrical Steering & suspension Heating & A/C Body & interior

Choose Sections to see everything in a chapter, or a chapter title to start at its first page.

01Relays and Modules Relays and Modules: Sections
02Sensors and Switches Sensors and Switches: Sections
- Sensors and Switches - Accessories and Optional Equipment16 pages
  - Hood Sensor/Switch (For Alarm) › Component Information › Locations
  - Trunk/Liftgate Sensor/Switch (For Alarm) › Component Information › Locations
  - Ultrasonic Sensor, Antitheft › Component Information14 pages
    Locations › Ultra-Sound Sensor Left -G170-2
    Diagrams12 pages
    Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
    Electrical Diagrams › Ultra-Sound Sensor Control Module2
- Sensors and Switches - Body and Frame39 pages
  - Hood Switch / Sensor › Hood Sensor/Switch (For Alarm) › Component Information › Locations
  - Power Door Lock Switch › Component Information › Service and Repair
  - Power Mirror Switch › Component Information12 pages
    Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
    Service and Repair › Power Mirror Switch, Removing and Installing2
  - Power Trunk / Liftgate Lock Switch › Component Information › Service and Repair3 pages
    Procedures
    Removal and Replacement › From m.y. 1999 VIN 8D XA 200 0012
  - Seat Heater Sensor › Component Information › Diagrams12 pages
    Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
    Electrical Diagrams › Heated Front Seats2
  - Sunroof / Moonroof Switch › Component Information › Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
- Sensors and Switches - Brakes and Traction Control84 pages
  - Brake Booster Vacuum Sensor › Component Information › Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
  - Brake Fluid Level Sensor/Switch › Component Information › Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
  - Brake Pad Wear Sensor › Component Information › Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
  - Parking Brake Warning Switch › Component Information › Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
  - Steering Angle Sensor, Traction Control › Component Information11 pages
    Locations
    Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
  - Traction Control Switch › Component Information › Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
  - Wheel Speed Sensor › Component Information23 pages
    Technical Service Bulletins4 pages
    Customer Interest for Wheel Speed Sensor: › 4508042
    All Technical Service Bulletins for Wheel Speed Sensor: › 4508042
    Locations › Left Front ABS Wheel Speed Sensor -G47-2 3 4
    Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
    Service and Repair5 pages
    ABS Wheel Speed Sensor › Front2 3
    ABS Wheel Speed Sensor Rotor › Front2
- Sensors and Switches - Cooling System48 pages
  - Coolant Level Sensor › Component Information11 pages
    Locations
    Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
  - Engine - Coolant Temperature Sensor/Switch37 pages
    Coolant Temperature Sensor/Switch (For Computer) › Component Information24 pages
    Locations › Component Locations Overview2 3 4 5 6 7 8
    Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
    Testing and Inspection › Engine Coolant Temperature (ECT) Sensor - G62 -, Checking2 3 4 5 6
    Radiator Cooling Fan Temperature Sensor / Switch › Component Information13 pages
    Locations › Coolant Fan Control (FC) Thermal Switch -F18-2 3
    Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
- Sensors and Switches - Cruise Control14 pages
- Sensors and Switches - Engine21 pages
  - Oil Level Sensor › Component Information › Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
  - Oil Pressure Sender › Component Information11 pages
    Locations
    Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
- Sensors and Switches - HVAC50 pages
  - Air Door Position Sensor / Switch, HVAC › Component Information14 pages
    Locations › Back Pressure Flap Motor Position Sensor -G113-2 3 4
    Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
  - Ambient Temperature Sensor / Switch HVAC › Component Information13 pages
    Locations
    Diagrams12 pages
    Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
    Electrical Diagrams › Outside Air Temperature Sensor2
  - Cabin Temperature Sensor / Switch › Component Information3 pages
    Locations
    Service and Repair › Instrument Panel Interior Temp. Sensor -G56- Remove and Install2
  - Compressor Speed Sensor, HVAC › Component Information › Description and Operation2
  - Discharge Air Temperature Sensor / Switch, HVAC › Component Information14 pages
    Locations › Sender For Outlet Temperature, Center -G191-2
    Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
    Service and Repair › Sensor For Outlet Temperature, Center -G191- Remove and Install2
  - Refrigerant Pressure Sensor / Switch, HVAC2 pages
    High Pressure Sensor / Switch, HVAC › Component Information › Description and Operation
    Low Pressure Sensor / Switch, HVAC › Component Information › Description and Operation
  - Solar Sensor, HVAC › Component Information › Locations2
- Sensors and Switches - Instrument Panel55 pages
- Sensors and Switches - Lighting and Horns90 pages
  - Backup Lamp Switch › Component Information › Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
  - Brake Light Switch › Component Information12 pages
    Locations › Brake Light Switch2
    Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
  - Combination Switch › Component Information › Diagrams2
  - Door Switch › Component Information › Locations › Driver's Side -F2-2
  - Fog/Driving Lamp Switch › Component Information › Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
  - Hazard Warning Switch › Component Information11 pages
    Locations
    Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
  - Headlamp Alignment Sensor › Component Information13 pages
    Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
    Service and Repair › Left Front Level Control System Sensor -G78-2 3
  - Headlamp Dimmer Switch › Component Information › Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
  - Headlamp Switch › Component Information › Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
  - Turn Signal Switch › Component Information › Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
- Sensors and Switches - Powertrain Management499 pages
  - Sensors and Switches - Computers and Control Systems309 pages
    Accelerator Pedal Position Sensor › Component Information11 pages
    Locations
    Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
    Air Flow Meter/Sensor › Component Information129 pages
    Technical Service Bulletins112 pages
    Customer Interest for Air Flow Meter/Sensor:56 pages
    01081921 pages
    Dec14 pages
    08 › Engine Controls - Driveability Complaint Diagnosis › Engine Controls - Driveability Complaint Diagnosis2 3 4 5 6 7
    Engine Controls - Driveability Complaint Diagnosis › Engine Controls - Driveability Complaint Diagnosis2 3 4 5 6 7
    Engine Controls - Driveability Complaint Diagnosis › Engine Controls - Driveability Complaint Diagnosis2 3 4 5 6 7
    Engine Controls - Driveability Complaint Diagnosis › Engine Controls - Driveability Complaint Diagnosis2 3 4 5 6 7
    Engine Controls - Erratic/Low Idle/DTC's Set › Engine Controls - Erratic/Low Idle/DTC's Set2 3 4 5 6 7
    24087921 pages
    Dec14 pages
    08 › Engine Controls - Erratic/Low Idle/DTC's Set › Engine Controls - Erratic/Low Idle/DTC's Set2 3 4 5 6 7
    Engine Controls - Erratic/Low Idle/DTC's Set › Engine Controls - Erratic/Low Idle/DTC's Set2 3 4 5 6 7
    Engine Controls - Erratic/Low Idle/DTC's Set › Engine Controls - Erratic/Low Idle/DTC's Set2 3 4 5 6 7
    All Technical Service Bulletins for Air Flow Meter/Sensor:56 pages
    01081921 pages
    Dec14 pages
    08 › Engine Controls - Driveability Complaint Diagnosis › Engine Controls - Driveability Complaint Diagnosis2 3 4 5 6 7
    Engine Controls - Driveability Complaint Diagnosis › Engine Controls - Driveability Complaint Diagnosis2 3 4 5 6 7
    Engine Controls - Driveability Complaint Diagnosis › Engine Controls - Driveability Complaint Diagnosis2 3 4 5 6 7
    Engine Controls - Driveability Complaint Diagnosis › Engine Controls - Driveability Complaint Diagnosis2 3 4 5 6 7
    Engine Controls - Erratic/Low Idle/DTC's Set › Engine Controls - Erratic/Low Idle/DTC's Set2 3 4 5 6 7
    24087921 pages
    Dec14 pages
    08 › Engine Controls - Erratic/Low Idle/DTC's Set › Engine Controls - Erratic/Low Idle/DTC's Set2 3 4 5 6 7
    Engine Controls - Erratic/Low Idle/DTC's Set › Engine Controls - Erratic/Low Idle/DTC's Set2 3 4 5 6 7
    Engine Controls - Erratic/Low Idle/DTC's Set › Engine Controls - Erratic/Low Idle/DTC's Set2 3 4 5 6 7
    Locations › Mass Air Flow (MAF) Sensor G702 3 4 5 6 7
    Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
    Barometric Pressure Sensor › Component Information › Locations
    Camshaft Position Sensor › Component Information17 pages
    Locations › Component Locations, Overview2 3 4 5 6 7
    Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
    Clutch Switch, ECM › Component Information10 pages
    Specifications
    Locations › Component Locations, Overview2 3 4 5 6 7
    Adjustments › 5 Speed Manual Transmission 01A All Wheel Drive2
    Coolant Temperature Sensor/Switch (For Computer) › Component Information24 pages
    Locations › Component Locations Overview2 3 4 5 6 7 8
    Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
    Testing and Inspection › Engine Coolant Temperature (ECT) Sensor - G62 -, Checking2 3 4 5 6
    Electronic Throttle Actuator Position Sensor › Component Information › Locations › Component Locations, Overview2 3 4 5 6 7 8 9
    Engine Speed Sensor › Component Information23 pages
    Locations › Component Locations › Component Locations, Overview2 3 4 5 6 7
    Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
    Testing and Inspection › Engine Speed (RPM) Sensor -G28-, Checking2 3 4 5 6
    Fuel Level Sensor › Component Information › Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
    Intake Air Temperature Sensor › Component Information17 pages
    Locations › Intake Air Temperature Sensor G422 3 4 5 6 7
    Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
    Knock Sensor › Component Information › Locations › Component Locations, Overview2 3 4 5 6 7 8
    Oil Temperature Sensor For ECM › Component Information › Locations
    Oxygen Sensor › Component Information › Locations › Component Locations, Overview2 3 4 5 6 7 8 9 10
    Rough Road Sensor › Component Information › Testing and Inspection
    Throttle Full Close Switch › Component Information › Locations
    Throttle Position Sensor › Component Information11 pages
    Locations
    Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
    Transmission Position Switch/Sensor, A/T › Component Information13 pages
    Specifications
    Locations › Multi-Function Transmission Range (TR) Switch -F125-2
    Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
    Vehicle Speed Sensor › Component Information13 pages
    Locations
    Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
    Service and Repair › Speedometer Vehicle Speed Sensor (VSS) -G22-2
  - Sensors and Switches - Fuel Delivery and Air Induction163 pages
    Accelerator Pedal Position Sensor › Component Information11 pages
    Locations
    Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
    Air Flow Meter/Sensor › Component Information129 pages
    Technical Service Bulletins112 pages
    Customer Interest for Air Flow Meter/Sensor:56 pages
    01081921 pages
    Dec14 pages
    08 › Engine Controls - Driveability Complaint Diagnosis › Engine Controls - Driveability Complaint Diagnosis2 3 4 5 6 7
    Engine Controls - Driveability Complaint Diagnosis › Engine Controls - Driveability Complaint Diagnosis2 3 4 5 6 7
    Engine Controls - Driveability Complaint Diagnosis › Engine Controls - Driveability Complaint Diagnosis2 3 4 5 6 7
    Engine Controls - Driveability Complaint Diagnosis › Engine Controls - Driveability Complaint Diagnosis2 3 4 5 6 7
    Engine Controls - Erratic/Low Idle/DTC's Set › Engine Controls - Erratic/Low Idle/DTC's Set2 3 4 5 6 7
    24087921 pages
    Dec14 pages
    08 › Engine Controls - Erratic/Low Idle/DTC's Set › Engine Controls - Erratic/Low Idle/DTC's Set2 3 4 5 6 7
    Engine Controls - Erratic/Low Idle/DTC's Set › Engine Controls - Erratic/Low Idle/DTC's Set2 3 4 5 6 7
    Engine Controls - Erratic/Low Idle/DTC's Set › Engine Controls - Erratic/Low Idle/DTC's Set2 3 4 5 6 7
    All Technical Service Bulletins for Air Flow Meter/Sensor:56 pages
    01081921 pages
    Dec14 pages
    08 › Engine Controls - Driveability Complaint Diagnosis › Engine Controls - Driveability Complaint Diagnosis2 3 4 5 6 7
    Engine Controls - Driveability Complaint Diagnosis › Engine Controls - Driveability Complaint Diagnosis2 3 4 5 6 7
    Engine Controls - Driveability Complaint Diagnosis › Engine Controls - Driveability Complaint Diagnosis2 3 4 5 6 7
    Engine Controls - Driveability Complaint Diagnosis › Engine Controls - Driveability Complaint Diagnosis2 3 4 5 6 7
    Engine Controls - Erratic/Low Idle/DTC's Set › Engine Controls - Erratic/Low Idle/DTC's Set2 3 4 5 6 7
    24087921 pages
    Dec14 pages
    08 › Engine Controls - Erratic/Low Idle/DTC's Set › Engine Controls - Erratic/Low Idle/DTC's Set2 3 4 5 6 7
    Engine Controls - Erratic/Low Idle/DTC's Set › Engine Controls - Erratic/Low Idle/DTC's Set2 3 4 5 6 7
    Engine Controls - Erratic/Low Idle/DTC's Set › Engine Controls - Erratic/Low Idle/DTC's Set2 3 4 5 6 7
    Locations › Mass Air Flow (MAF) Sensor G702 3 4 5 6 7
    Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
    Throttle Full Close Switch › Component Information › Locations
    Throttle Position Sensor › Component Information11 pages
    Locations
    Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
    Turbo Boost Sensor › Component Information11 pages
    Locations
    Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
  - Sensors and Switches - Ignition System27 pages
    Camshaft Position Sensor › Component Information17 pages
    Locations › Component Locations, Overview2 3 4 5 6 7
    Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
    Ignition Switch › Ignition Switch Lock Cylinder › Component Information › Service and Repair2
    Knock Sensor › Component Information › Locations › Component Locations, Overview2 3 4 5 6 7 8
- Sensors and Switches - Restraint Systems24 pages
  - Impact Sensor › Component Information11 pages
    Locations
    Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
  - Seat Belt Buckle Switch › Component Information › Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
  - Seat Occupant Sensor › Component Information › Locations2 3
- Sensors and Switches - Starting and Charging3 pages
  - Clutch Switch › Component Information › Locations
  - Ignition Switch › Ignition Switch Lock Cylinder › Component Information › Service and Repair2
- Sensors and Switches - Steering and Suspension16 pages
- Sensors and Switches - Transmission and Drivetrain45 pages
  - Sensors and Switches - A/T42 pages
    Downshift Switch, A/T › Component Information › Locations2
    Shift Solenoid Position Sensor/Switch › Component Information › Locations › Tiptronic Switch -F189-2
    Throttle Position Sensor/Switch, A/T › Component Information › Locations
    Transmission Position Switch/Sensor, A/T › Component Information13 pages
    Specifications
    Locations › Multi-Function Transmission Range (TR) Switch -F125-2
    Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
    Transmission Speed Sensor, A/T › Component Information13 pages
    Specifications
    Locations › Transmission Vehicle Speed (VSS) Sensor -G38-2
    Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
    Transmission Temperature Sensor/Switch, A/T › Component Information11 pages
    Locations
    Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
  - Sensors and Switches - M/T › Transmission Speed Sensor, M/T › Component Information › Service and Repair › 5 Speed Manual Transmission 01A All Wheel Drive2 3
- Sensors and Switches - Windows and Glass23 pages
  - Rear Defogger Switch › Component Information › Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
  - Power Window Switch › Component Information13 pages
    Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
    Service and Repair › Driver-Side Power Window Switches, Removing and Installing2 3
- Sensors and Switches - Wiper and Washer Systems20 pages
  - Washer Fluid Level Switch › Component Information › Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
  - Wiper Switch › Component Information › Diagrams › Diagram Information and Instructions › Wiring Diagram Layout2 3 4 5 6 7 8 9 10
03Maintenance Maintenance: Sections
04Engine, Cooling and Exhaust Engine, Cooling and Exhaust: Sections
05Powertrain Management Powertrain Management: Sections
06Transmission and Drivetrain Transmission and Drivetrain: Sections
07Brakes and Traction Control Brakes and Traction Control: Sections
08Starting and Charging Starting and Charging: Sections
09Power and Ground Distribution Power and Ground Distribution: Sections
10Steering and Suspension Steering and Suspension: Sections
11Heating and Air Conditioning Heating and Air Conditioning: Sections
12Restraint Systems Restraint Systems: Sections
13Accessories and Optional Equipment Accessories and Optional Equipment: Sections
14Body and Frame Body and Frame: Sections
15Cruise Control Cruise Control: Sections
16Instrument Panel, Gauges and Warning Indicators Instrument Panel, Gauges and Warning Indicators: Sections
17Lighting and Horns Lighting and Horns: Sections
18Windows and Glass Windows and Glass: Sections
19Wiper and Washer Systems Wiper and Washer Systems: Sections