Overview of Component Locations
Overview Of Component Locations
1 - Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130- with Oxygen Sensor (O2S) Heater 1 -Z29-
- Component location => Fig.24
- Check Oxygen Sensor (O2S) and oxygen sensor control behind Three Way Catalytic Converter (TWC)
- Check oxygen sensor heater for Oxygen Sensor (O2S) behind Three Way Catalytic Converter (TWC)
2 - 4-pin harness connector
- for Oxygen Sensor (O2S) behind Three Way Catalytic Converter (TWC) -G130- and Oxygen Sensor (O2S) Heater 1 -Z29-(brown)
- Component location => Fig.21
3 - Heated Oxygen Sensor (HO2S) -G39- before catalytic converter with Oxygen Sensor (O2S) Heater -Z19-
- Constant oxygen sensor
- Check Oxygen Sensor (O2S) and oxygen sensor control before Three Way Catalytic Converter (TWC)
- Check oxygen sensor aging of oxygen sensor before catalytic converter
- Check oxygen sensor heater for Oxygen Sensor (O2S) before Three Way Catalytic Converter (TWC)
4 - 6-pin harness connector
- for Heated Oxygen Sensor (HO2S) -G39- before catalytic converter and Oxygen Sensor (O2S) Heater -Z19- (black)
5 - Motronic Engine Control Module (ECM) -J220-
- Check voltage supply of Engine Control Module (ECM)
- Procedure to follow after open circuit in voltage supply
- Replace
6 - Ignition coils
- Cylinder 1 Ignition Coil -N-
- Cylinder 2 Ignition Coil 2 -N128-
- Cylinder 3 Ignition Coil 3 -N158-
- Cylinder 4 Ignition Coil 4 -N163-
7 - Recirculating valve for turbocharger -N249-
- Component location => Fig.1,
- Checking.
8 - Combination valve for secondary air injection (AIR)
- Checking, removing and installing:
9 - Throttle Position (TP) sensor -G79- and Sender -2- for accelerator pedal position -G185-
- Component location => Fig.2
10 - Brake light switch -F- and Brake pedal switch -F47-
- Component location => Fig. 3
11 - Clutch vacuum vent valve switch -F36-
- Component location => Fig.1
12 - Instrument cluster
- with Electronic Power Control (EPC) warning lamp -K132-
- with Malfunction Indicator Lamp
13 - Motronic Engine Control Module (ECM) voltage supply relay -J271-
- Component location => Fig.4.
14 - Mass Air Flow (MAF) Sensor -G70-
15 - Wastegate Bypass Regulator Valve -N75-
16 - Engine Coolant Temperature (ECT) Sensor -G62-
- If necessary, release pressure in cooling system before removing
17 - Valve -1- for camshaft adjustment -N205-
18 - Fuel pressure regulator
19 - Knock Sensor (KS) 2 -G66-
20 - Charge Charge Air Pressure Sensor -G31-
- Screwed in, above in charge air cooler - Checking:
21 - Engine Speed (RPM) Sensor -G28-
22 - Throttle Valve Control Module -J338-
- With Throttle drive (power accelerator actuation) -G186-, Angle sensor-1-for throttle drive (power accelerator actuation) -G187-, and Angle sensor -2- for throttle drive (power accelerator actuation) -G188-
- When replacing, perform adaptation
23 - Intake Air Temperature (IAT) Sensor -G42-
24 - 3-pin harness connector
- For Engine speed (RPM) sensor -G28-
25 - Sensor -1- for exhaust temperature -G235-
- Location: in turbocharger
26 - Fuel injectors
- Cylinder 1 Fuel Injector -N30-
- Cylinder 2 fuel injector -N31-
- Cylinder 3 fuel injector -N32-
- Cylinder 4 fuel injector -N33-
27 - Secondary Air Injection (AIR) pump motor-V101-
- Checking
28 - Knock Sensor (KS) 1 -G61-
29 - Pressure switch/power steering -F88-
- Component location => Fig.2
30 - Camshaft Position (CMP) Sensor-G40-
31 - Evaporative Emission (EVAP) canister purge regulator valve -N80-
Fig. 1 Location of Recirculating valve for turbocharger -N249-
On cylinder head cover
1 - To connection at intake manifold
2 - Vacuum reservoir
3 - To mechanical recirculating valve
4 - Recirculating valve for turbocharger -N249-
Fig. 2 Installed position, Throttle Position (TP) sensor -G79- and Sender -2- for accelerator pedal position -G185-
NOTE: Illustration depicts allocation for left-hand drive.
Fig. 3 Location of oxygen sensor behind catalytic converter and protective cover for harness connector
1 - Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130- and Oxygen Sensor (O2S) Heater 1 -Z29-
2 - Protective cover for harness connector
The harness connector for the oxygen sensor and oxygen sensor heater is accessible at the vehicle floor, right side, after unscrewing the protective cover (arrows).
Fig. 4 Location of Motronic Engine Control Module (ECM) power supply relay -J271-
- Below cover, on left at bulkhead
NOTE: To remove the protective hood for vehicles with a dome brace, disengage relay carrier at the bulkhead and swing downward.
Disconnect additional harness connectors at Mass Air Flow (MAF) sensor, if necessary.
Fig. 5 Installed position of Pressure switch/power steering -F88-
Fig. 6 Location of Brake light switch -F- and Brake pedal switch -F47-
Fig. 7 Location of Clutch vacuum vent valve switch -F36-