Component Locations, Overview - II

Component Locations, Overview (Vehicles With Engine Code AVH, BEV)







1. Evaporative Emission (EVAP) canister purge regulator valve-N80-*
- Installation position: Arrow points in direction of flow
2. Camshaft Position (CMP) sensor -G40-*
- Terminals of sensor and connector are gold-plated
3. Intake manifold
4. Throttle valve control module -J338-*
5. Positive Crankcase Ventilation (PCV) heating element -N79-
6. Combination valve
7. Connector, 81-pin
- For Engine Control Module (ECM)
- Switch ignition off before disconnecting or connecting connector
- Disengage to pull off
8. Motronic Engine Control Module (ECM) -J220-*
- Component location: in plenum chamber
- Checking voltage supply.
9. Connector, 40-pin
- For Engine Control Module (ECM)
- For Engine Control Module (ECM)
- Disengage to pull off
10. Mass Air Flow (MAF) sensor -G70-* with Intake Air Temperature (IAT) sensor -G42-*
11. Protective housing for relay
- Relay position assignment in protective housing, see Fig. 1
12. Relay position assignment in protective housing, see Fig. 1
- For Engine Control Module (ECM)
- With Engine Coolant Temperature (ECT) sensor (G2)
- If necessary, release pressure in cooling system before removing
13. Air filter
14. Protective housing
- For additional fuse
15. Ignition coil with power output stage (-N70-, -N127-, -N291-, -N292-)*
16. Engine speed sensor -G28-*
- Engine speed sensor -G28-*
- Tightening torque: 10 Nm
17. Secondary Air Injection (AIR) pump motor -V101-*
18. Fuel injectors (-N30- through -N33-)*
19. Knock Sensor (KS) 2 -G66-*
- Terminals of sensor and connector are gold-plated
- Contact surfaces between knock sensor and cylinder block must be free of corrosion, dirt and grease
20. Knock Sensor (KS) 1 -G61-*
- Terminals of sensor and connector are gold-plated
- Contact surfaces between knock sensor and cylinder block must be free of corrosion, dirt and grease
21. 4-pin harness connector -
- Brown
- Terminals 3 and 4 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-
- Component location: At right vehicle underside
22. Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-* bank 1, 50 Nm
- Component location: In rear catalytic converter
- Only use "G 052 112 A3" to grease thread; do not let "G 052 112 A3" get onto slit of oxygen sensor
- Voltage supply of oxygen sensor heater via Fuel Pump (FP) relay -J17-
- Check oxygen sensor heater for Oxygen Sensor (O2S) behind Three Way Catalytic Converter (TWC).
- Check Oxygen Sensor (O2S) and oxygen sensor control behind Three Way Catalytic Converter (TWC).
23. 6-pin harness connector
- Terminals are gold-plated
- Black, 6-pin
- For Heated Oxygen Sensor (HO2S) -G39- and Oxygen Sensor (O2S) Heater -Z19-
- Component location: At right vehicle underside
24. Heated Oxygen Sensor (HO2S) -G39-* bank 1, 50 Nm
- Heated Oxygen Sensor (HO2S) -G39-* bank 1, 50 Nm
- Use "G5" to grease thread only; do not let "G5" get onto slits of oxygen sensor body
- Use "G5" to grease thread only; do not let "G5" get onto slits of oxygen sensor body
- Check oxygen sensor heater for Oxygen Sensor (O2S) before Three Way Catalytic Converter (TWC).
- Check Oxygen Sensor (O2S) and oxygen sensor control before Three Way Catalytic Converter (TWC).
25. Fuel pressure regulator
- In vehicles with engine code BEV, pressure regulator is installed on fuel filter, removing and installing fuel filter with attachments

Fig. 1 Relay position assignment in protective housing (engine compartment, left)







1. Secondary Air Injection (AIR) pump relay -J299-*
2. Motronic Engine Control Module (ECM) voltage supply relay -J271-*

NOTE:
- Remove battery Ground (GND) strap beforehand if tools are necessary for removal of relays or control modules from the relay carrier.
- Obtain radio code for radios with anti-theft coding before disconnecting battery.
- Relay position assignment may be different for various vehicle equipment. Current control number and installation position:
- Check relay activation: