Overview of Component Locations
Component Locations, Overview
1 - Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-
2 - Mass Air Flow (MAF) Sensor -G70-
- With Intake Air Temperature (IAT) Sensor -G42-
3 - Camshaft Position (CMP) Sensor 3 -G300-
- For exhaust camshaft bank 1
4 - Camshaft Position (CMP) Sensor -G40-
- For intake camshaft bank 1
5 - Brake booster pressure sensor -G294-
- For vehicles with automatic transmission
6 - Camshaft Position (CMP) Sensor 2 -G163-
- For intake camshaft bank 2
7 - Camshaft Position (CMP) Sensor 4 -G301-
- For exhaust camshaft bank 2
8 - Ignition coils with power output stage, bank 2
- Ignition Coil 4 with Power Output Stage -N292-
- Ignition Coil 5 with Power Output Stage -N323-
- Ignition Coil 6 with Power Output Stage -N324-
9 - E-box, plenum chamber
- Component location of Motronic Engine Control Module (ECM) -J220-
- Check voltage supply of Engine Control Module (ECM)
- Installation location of Motronic Engine Control Module (ECM) Power Supply Relay - J271-
- Check Motronic Engine Control Module (ECM) Power Supply Relay -J271-
- Component location of Secondary Air Injection (AIR) Pump Relay -J299-
- Checking Secondary Air Injection (AIR) Pump Relay -J299-
- Installation location of fuse S130 for Secondary Air Injection (AIR) pump
- Component location of relay for pump for brake booster -J569-.
10 - Brake System Vacuum Pump -V192-
- For vehicles with automatic transmission
11 - Camshaft Adjustment Valve 2 -N208-, Camshaft Adjustment Valve 2 (exhaust) -N319-
- Bank 2
12 - Fuel injectors, bank 2
- Cylinder 4 fuel injector -N33-
- Cylinder 5 Fuel Injector -N83-
- Cylinder 6 Fuel Injector -N84-
13 - Fuel injectors, bank 1
- Cylinder 1 Fuel Injector -N30-
- Cylinder 2 fuel injector -N31-
- Cylinder 3 fuel injector -N32-
14 - Camshaft Adjustment Valve 1 -N205-, Camshaft Adjustment Valve 1 (exhaust) -N318-
- Bank 1
15 - Ignition coils with power output stage, bank 1
- Ignition Coil 1 with Power Output Stage -N70-
- Ignition Coil 2 with Power Output Stage -N127-
- Ignition Coil 3 with Power Output Stage -N291-
16 - Secondary Air Injection (AIR) Pump Motor -V101-
17 - Heated Oxygen Sensor (HO2S) -G39- before catalytic converter with Oxygen Sensor (O2S) Heater -Z19-
- Bank 1, sensor 1
- Constant oxygen sensor
- Check Oxygen Sensor (O2S) and oxygen sensor control before Three Way Catalytic Converter (TWC)
- Check oxygen sensor heater for Oxygen Sensor (O2S) before Three Way Catalytic Converter (TWC)
18 - Bracket for harness connectors
- For right side of vehicle
19 - Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130- with Oxygen Sensor (O2S) Heater 1 (behind Three Way Catalytic Converter (TWC)) -Z29-
- Bank 1, sensor 2
- 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)
20 - Engine Coolant Temperature (ECT) Sensor -G62-
- For Engine Control Module (ECM)
- At coolant pipe behind cylinder head bank 1
- With Engine Coolant Temperature (ECT) Sensor -G2-
- If necessary, release pressure in cooling system before removing
21 - Throttle Valve Control Module -J338-
- With Throttle Drive (for Electronic Power Control (EPC)) -G186-, Throttle Drive Angle Sensor 1 (for Electronic Power Control (EPC)) -G187-, and Throttle Drive Angle Sensor 2 (for Electronic Power Control (EPC)) -G188-
- When replacing, perform adaptation, for this purpose switch on ignition for at least 20 seconds without starting engine or depressing accelerator pedal
22 - Secondary Air Injection (AIR) solenoid valve -N112-
23 - Engine Speed (RPM) Sensor -G28-
- In transmission housing via ring gear
24 - Bracket for harness connectors
- For left side of vehicle
25 - Throttle Position (TP) sensor -G79- and Accelerator Pedal Position Sensor 2 -G185-
- When replacing, adapt kickdown function, to do so switch on ignition and press accelerator pedal all the way down past the kickdown point and hold in position for at least 20 seconds
- Removing and installing accelerator pedal module
26 - Fuel Pump (FP) Relay -J17-
27 - Brake light switch -F- and brake pedal switch -F47-
28 - Clutch Pedal Switch -F36-
29 - Instrument cluster
- With Malfunction Indicator Lamp (MIL) -K83-
- With Electronic Power Control (EPC) Warning Lamp -K132- ("EPC" warning lamp)
30 - Oxygen Sensor (O2S) 2 Behind Three Way Catalytic Converter (TWC) -G131- with Oxygen Sensor (O2S) Heater 2 (behind Three Way Catalytic Converter (TWC)) -Z30-
- Bank 2, sensor 2
- 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)
31 - Heated Oxygen Sensor (HO2S) 2 -G108- before catalytic converter with Oxygen Sensor (O2S) 2 Heater -Z28-
- Bank 2, sensor 1
- Constant oxygen sensor
- Check Oxygen Sensor (O2S) and oxygen sensor control before Three Way Catalytic Converter (TWC)
- Check oxygen sensor heater for Oxygen Sensor (O2S) before Three Way Catalytic Converter (TWC)
32 - Fuel pressure regulator
- Integrated in fuel filter for vehicles as of 07.03
- Checking for vehicles as of 07.03
33 - Knock Sensor (KS) 2 -G66-
- Bank 2
- Below intake manifold
34 - Intake Manifold Tuning (IMT) Valve -N156-
35 - Knock Sensor (KS) 1 -G61-
- Bank 1
- Below intake manifold
36 - Ground (GND) connection
- On the engine bracket, right
37 - Not installed
Fig. 1 Installation position, Throttle Position (TP) sensor -G79- and Accelerator Pedal Position Sensor 2 -G185-
- Integrated in accelerator pedal module (arrow)
NOTE: Throttle Position (TP) Sensor -G79- and Accelerator Pedal Position Sensor 2 -G185- are integrated in the accelerator pedal module and cannot be replaced separately.
Fig. 2 Component location of Fuel Pump (FP) Relay -J17-
- Located at position 1 (arrow) of relay carrier in driver's footwell, left
Fig. 3 Installation location of brake light switch -F- and brake pedal switch -F47-, Clutch Pedal Switch -F36-
1 - Clutch Pedal Switch -F36-
2 - Brake light switch -F-, brake pedal switch -F47-
Removing and installing switch:
Fig. 4 Component location of Engine Control Module (ECM) in E-box, plenum chamber
Fig. 5 Installation positions in E-box, plenum chamber
1.1 - Coolant Circulation Pump Relay -J151- (only hot countries)
1.2 - Not assigned
2 - Secondary Air Injection (AIR) Pump Relay -J299-
3 - Motronic Engine Control Module (ECM) voltage supply relay -J271-
A - Engine Electronics Fuse S282
B - Installation location of fuse S130 for Secondary Air Injection (AIR) pump
C - Not assigned
Fig. 6 Assignment of bracket for harness connectors - right side of vehicle
1 - 6-pin harness connector, black
for Heated Oxygen Sensor (HO2S) -G39- before catalytic converter and Oxygen Sensor (O2S) Heater -Z19- (bank 1 sensor 1)
2 - 3-pin harness connector, blue
for Knock Sensor (KS) 1 -G61-
3 - 4-pin harness connector, green
for Oxygen Sensor (O2S) behind Three Way Catalytic Converter (TWC) -G130- and Oxygen Sensor (O2S) Heater 1 (behind Three Way Catalytic Converter (TWC)) -Z29- (bank 1 sensor 2)
4 - 3-pin harness connector, black
for terminal 50
Fig. 7 Assignment of bracket for harness connectors - left side of vehicle
1 - 4-pin harness connector, brown
for Oxygen Sensor (O2S) 2 behind Three Way Catalytic Converter (TWC) -G131- and Oxygen Sensor (O2S) Heater 2 -Z30- (bank 2 sensor 2)
2 - 3-pin harness connector, gray
for Engine Speed (RPM) Sensor -G28-
3 - 3-pin harness connector, blue
for Knock Sensor (KS) 2 -G66-
4 - 6-pin harness connector, black
for Heated Oxygen Sensor (HO2S) 2 -G108- before catalytic converter and Oxygen Sensor (O2S) 2 Heater -Z28- (bank 2 sensor 1)
NOTE: To reach the harness connectors, the left cover in engine compartment must be removed, the line to Engine Coolant Level (ECL) Warning Switch at bottom on reservoir must be disconnected, bolt (arrow) of coolant reservoir must be unscrewed and set it aside. Coolant hoses -1- to -3- remain connected.
Fig. 8 Installation position of Brake Booster Pressure Sensor -G294-
Fig. 9 Installation position of Intake Manifold Tuning (IMT) Valve -N156-
- Clipped to vacuum element
Fig. 10 Component location of Camshaft Position (CMP) Sensor -G40- and Camshaft Position (CMP) Sensor 3 -G300-
- At cylinder head bank 1 (right side), rear
1 - Electrical harness connector for Camshaft Position (CMP) Sensor 3 -G300-
2 - Electrical harness connector for Camshaft Position (CMP) Sensor -G40-
Fig. 11 Component location of Camshaft Position (CMP) Sensor 2 -G163- and Camshaft Position (CMP) Sensor 4 -G301-
- At cylinder head bank 2 (left side), rear
1 - Electrical harness connector for Camshaft Position (CMP) Sensor 2 -G163-
2 - Electrical harness connector for Camshaft Position (CMP) Sensor 3 -G300-