OBD2 Sensors >> Audi / VW 2.0L R4 TDI Engine Sensor Locations

View with cosmetic engine cover installed.  2012 VW Jetta 2.0L R4 TDI
  1. Fuel injectors (under valve cover center of cylinder head)
  2. Fuel Pump 2 (located at front of engine)
  3. Glow Plugs (screwed into cylinder head above exhaust manifold)
  4. Mass Airflow Sensor (MAF)
  5. Camshaft position sensor (CMP) (located next to intake manifold on front of cylinder head)
  6. Engine Speed sensor (ESS) (located at the left side rear of engine towards front of vehicle)
  7. Oil Pressure switch (rear corner of engine block towards front of vehicle)
  8. Fuel Metering Valve (lower front corner of engine block facing front of vehicle)
  9. Fuel Temp Sensor (located on fuel line behind fuel metering valve)
  10. Fuel Pressure Sensor (attached to fuel rail near front of timing cover)
  11. EGR Temp Sensor (attached to tube coming into air intake on back of engine)
  12. EGR Potentiometer (attached to EGR Valve)
  13. Charge Pressure Actuator position sensor (back of engine towards bulkhead)
  14. Throttle Valve Control Module (rear corner of engine block towards front of vehicle)
  15. Accelerator Pedal Position Sensor (APP) (attached to accelerator pedal inside vehicle)

Models Found On, beginning in 2008

  • Audi Q3, A4/A4L, A5, A6L, Q5/Q5L, S3, TT
  • VW Golf, Jetta, Touran, Scirocco, Passat, GTI
  • Mitsubishi Lancer, Outlander, Grandis
  • Chrysler Sebring
  • Dodge Avenger, Caliber, Journey
  • Jeep Compass, Patriot
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