Component Locations, Overview - I
Component Locations Overview
Engines with two oxygen sensors
1. Heated Oxygen Sensor (HO2S) -G39-, 50 Nm
- Location: In front exhaust pipe
2. 6-pin connector
- Contacts are gold plated
- For Heated Oxygen Sensor (HO2S) -G39- and Oxygen Sensor (O2S) heater -Z19-
- On underside of vehicle on right
3. Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-, 50 Nm
- Location: At rear of catalytic converter
4. 4-pin connector
- Contacts 3 and 4 are gold-plated
- For Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130- and Oxygen Sensor (O2S) heater 1 Behind Three Way Catalytic Converter (TWC) -Z29-
- On underside of vehicle on right
5. Camshaft Position (CMP) sensor -G40-
6. Secondary Air Injection (AIR) solenoid valve -N112-
7. Recirculating valve for turbocharger -N249-
8. Ignition coil with output stage (-N70-, -N127-, -N291-, -N292-)
9. Wastegate bypass regulator valve -N75-
10. Protective housing
- For Secondary Air Injection (AIR) pump relay -J299-
11. Motronic Engine Control Module (ECM) -J220-
- Location: Under inner plenum chamber cover in passenger compartment left side
- With integrated Barometric pressure (BARO) sensor -F96-
12. O-ring
- Replace if damaged
13. Engine Coolant Temperature (ECT) sensor -G62-
- With Engine Coolant Temperature (ECT) sensor -G2-
- For engine control module
- If necessary, release pressure in cooling system before removing
14. Securing clip
- Check for secure seating
15. Mass Air Flow (MAP) sensor -G70-
16. Camshaft adjuster
- Engines with camshaft timing adjustment
- Engines without camshaft timing adjustment chain tensioner installed
17. Fuel pressure regulator
18. Injector (-N30--N33-)
19. 10 Nm
20. Engine speed (RPM) sensor -G28-
21. O-ring
- Replace if damaged
22. Knock Sensor (KS) 2 -G66-
23. 20 Nm
- Tightening torque influences function of knock sensor
24. Secondary Air Injection (AIR) pump motor -V101-
25. Knock Sensor (KS) 1 -G61-
26. Charge air pressure sensor -G31-
27. Throttle valve control module -J338-
- If replaced, match engine control module.
28. Intake Air Temperature (IAT) sensor -G42-
29. EVAP canister purge regulator valve -N80-
- On right in engine compartment above wheelhousing liner.
Engines with three oxygen sensors
1. Heated Oxygen Sensor (HO2S) -G39-, 50 Nm
- Location: In front exhaust pipe
2. 6-pin connector
- Contacts are gold plated
- For Heated Oxygen Sensor (HO2S) -G39- and Oxygen Sensor (O2S) heater -Z19-
- On underside of vehicle on right
3. Oxygen Sensor (O2S in Center Three Way Catalytic Converter (TWC), Bank 1 -G465-, 50 Nm
- Location: In catalytic converter
4. 4-pin connector
- Contacts 3 and 4 are gold-plated
- For O2S in Center TWC -G465- and Oxygen Sensor (O2S) Heater - Center Three Way Catalytic Converter (TWC) -Z59-
- On underside of vehicle on right
5. Heated Oxygen Sensor (HO2S) 3 -G285-, 50 Nm
- Location: Behind catalytic converter in exhaust pipe
6. 4-pin connector
- Contacts 3 and 4 are gold-plated
- For Heated Oxygen Sensor (HO2S) 3 -G285- and Oxygen Sensor (O2S) Heater 1 (behind Three Way Catalytic Converter (TWC)) -Z29-
- On underside of vehicle on right
7. Secondary Air Injection (AIR) solenoid valve -N112-
8. Recirculating valve for turbocharger -N249-
9. Ignition coil with output stage (-N70-, -N127-, -N291-, -N292-)
10. EVAP canister purge regulator valve -N75-
11. Protective housing
- For Secondary Air Injection (AIR) pump relay - J299-
12. Motronic Engine Control Module (ECM) -J220-
- Location: Under inner plenum chamber cover in passenger compartment, left side
- With integrated Barometric pressure (BARO) sensor -F96-
13. O-ring
- Replace if damaged
14. Engine Coolant Temperature (ECT) sensor -G62-
- With Engine Coolant Temperature (ECT) sensor -G2-
- For engine control module
- If necessary, release pressure in cooling system before removing
15. Securing clip
- Check for secure seating
16. Mass Air Flow (MAP) sensor -G70- with Intake Air Temperature (IAT) sensor -G42-
17. Camshaft adjuster
18. Fuel pressure regulator
19. Injector (-N30--N33-)
20. 10 Nm
21. Engine speed (RPM) sensor -G28-
22. O-ring
- Replace if damaged
23. Knock Sensor (KS) 2 -G66-
24. 20 Nm
- Tightening torque influences function of knock sensor
25. Secondary Air Injection (AIR) pump motor -V101-
26. Knock Sensor (KS) 1 -G61-
27. Camshaft Position (CMP) sensor -G40-
28. Charge air pressure sensor -G31-
29. Throttle valve control module -J338-
- If replaced, match engine control module
30. Evaporative Emissions (EVAP) canister purge regulator valve -N80-
- On right in engine compartment above wheelhousing liner