FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Component Location Overview






Component Location Overview

Engine Compartment, Right






1 Secondary Air Injection (AIR) Pump Motor (V101)

Component location, refer to => [ Component Location of ]

2 Charge Air Pressure Sensor (G31) / Intake Air Temperature (IAT) Sensor (G72)

Component location, refer to => [ Installation Location / ]

3 Ignition Coils, Cylinder 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)

Removing and installing, refer to => [ Ignition Coils ] Service and Repair

4 Heated Oxygen Sensor (HO2S) (G39)

With oxygen sensor heater (Z19)

Component location, refer to => [ Oxygen Sensors Location, Cylinder Bank 1 (right) ]

Connector location, refer to => [ Electrical Connectors on Right Rear of Engine ]

Removing and installing, refer to => [ Heated Oxygen Sensor (G39) and Oxygen Sensor after Three Way Catalytic Converter (G130) ] Heated Oxygen Sensor (G39) and Oxygen Sensor After Three Way Catalytic Converter (G130)

5 Camshaft Adjustment Valve 1 (N205)

Component location, refer to => [ Installed Location: Camshaft Position (CMP) Sensor and Exhaust Camshaft Control Valve Cylinder Bank 1 (right) ]

6 Connectors

Connector assignment, refer to => [ Electrical Connectors on Left Rear of Engine ]

7 Oxygen Sensor (O2S) after Three Way Catalytic Converter (TWC) (G130)

With heater for oxygen sensor 1 after catalytic converter (Z29)

Component location, refer to => [ Oxygen Sensors Location, Cylinder Bank 1 (right) ]

Connector location, refer to => [ Electrical Connectors on Right Rear of Engine ]

Removing and installing, refer to => [ Heated Oxygen Sensor (G39) and Oxygen Sensor after Three Way Catalytic Converter (G130) ] Heated Oxygen Sensor (G39) and Oxygen Sensor After Three Way Catalytic Converter (G130)

8 Throttle Valve Control Module (J338)

Component location, refer to => [ Location ]

Removing and installing, refer to => [ Throttle Valve Control Module (J338) ] Throttle Valve Control Module (J338)

9 Intake Air Temperature (IAT) Sensor (G42) / Manifold Absolute Pressure (MAP) Sensor (G71)

Component location, refer to => [ Installation Location / ]

Removing and installing, refer to => [ Intake Air Temperature Sensor (G42)/Manifold Absolute Pressure Sensor (G71) ] Service and Repair

10 Secondary Air Injection (AIR) Sensor 1 (G609)

Component location, refer to => [ Installed location: ]

11 Evaporative Emission (EVAP) Canister Purge Regulator Valve 1 (N80)

12 Engine Speed (RPM) Sensor (G28)

Component location, refer to => [ Location ]

Removing and installing, refer to => [ Engine Speed Sensor (G28) ] Service and Repair

13 Knock Sensor (KS) 1 (G61)

Component location, refer to => [ Component Location Under the Intake Manifold Lower Section, Cylinder Bank 1 (right) ]

Connector location, refer to => [ Electrical Connectors on Right Rear of Engine ]

14 Fuel Injectors, Cylinder Bank 1

Cylinder 1 fuel injector (N30)

Cylinder 2 fuel injector (N31)

Cylinder 3 fuel injector (N32)

Removing and installing, refer to => [ Fuel Injectors ] Service and Repair

15 Engine Temperature Control Sensor (G694)

Component location => [ Installed Location ]

16 Intake Manifold Runner Position Sensor (G336)

Component location, refer to => [ Installed Location ]

17 Camshaft Position (CMP) Sensor (G40)

Component location, refer to => [ Installed Location: Camshaft Position (CMP) Sensor and Exhaust Camshaft Control Valve Cylinder Bank 1 (right) ]

18 Fuel Metering Valve (N290)

Component location, refer to => [ Component Location on the High Pressure Pump ]

19 Low Fuel Pressure Sensor (G410)

Component location, refer to => [ Component Location on the High Pressure Pump ]

Engine Compartment, Left






1 Intake Manifold Runner Position Sensor 2 (G512)

Component location, refer to => [ Installed Location ]

2 Engine Coolant Temperature (ECT) Sensor (G62)

Component location, refer to => [ Location ]

3 Fuel Pressure Sensor (G247)

22 Nm

Oil the thread

Component location, refer to => [ Component Location Under the Intake Manifold Lower Section, Cylinder Bank 2 (left) ]

4 Knock Sensor (KS) 2 (G66)

Component location, refer to => [ Component Location Under the Intake Manifold Lower Section, Cylinder Bank 2 (left) ]

Connector location, refer to => [ Electrical Connectors on Left Rear of Engine ]

5 Fuel Injectors, Cylinder Bank 2

Cylinder 4 Fuel Injector (N33)

Cylinder 5 Fuel Injector (N83)

Cylinder 6 Fuel Injector (N84)

Removing and installing, refer to => [ Fuel Injectors ] Service and Repair

6 Control Valve Control Unit (J808)

Component location, refer to => [ Installation Location ]

Removing and installing, refer to => [ Control Valve Control Unit (J808) ] Control Valve Control Unit (J808)

7 Secondary Air Injection (AIR) Solenoid Valve (N112)

Component location, refer to => [ Installed Location: Secondary Air Injection Solenoid Valve ]

8 Intake Manifold Runner Control (IMRC) Valve (N316)

Component location, refer to => [ Installed Location: Secondary Air Injection Solenoid Valve ]

9 Secondary Air Injection (AIR) Solenoid Valve 2 (N320)

Component location, refer to => [ Installed Location: Secondary Air Injection Solenoid Valve ]

10 Connectors

Connector assignment, refer to => [ Electrical Connectors on Left Rear of Engine ]

11 Oxygen Sensor (O2S) 2 after Catalytic Converter (G131)

With heater for O2S 2 after catalytic converter (Z30)

Component location, refer to => [ Oxygen Sensors Location, Cylinder Bank 2 (left) ]

Connector location, refer to => [ Electrical Connectors on Left Rear of Engine ]

Removing and installing, refer to => [ Heated Oxygen Sensor 2 (G108) and Oxygen Sensor 2 after Catalytic Converter (G131) ] Heated Oxygen Sensor 2 (G108) and Oxygen Sensor 2 After Catalytic Converter (G131)

12 Engine Malfunction Lamp

Inside the instrument cluster

13 Accelerator Pedal Position Sensor (G79) / Accelerator Pedal Position Sensor 2 (G185)

In accelerator pedal module, component location, refer to => [ Component Location / ]

14 Brake Lamp Switch (F) / Brake Pedal Switch (F47)

Component location, refer to => [ Component Location ]

15 Engine Control Module (ECM) (J623)

Component location, refer to => [ Component Location ]

Removing and installing, refer to => [ Engine Control Module (J623) ] Engine Control Module (J623)

16 Camshaft Adjustment Valve 2 (N208)

Component location, refer to => [ Installed Location: CMP Sensor and Exhaust Camshaft Control Valve Cylinder Bank 2 (left) ]

17 Heated Oxygen Sensor (HO2S) 2 (G108)

With O2S 2 heater (Z28)

Component location, refer to => [ Oxygen Sensors Location, Cylinder Bank 2 (left) ]

Connector location, refer to => [ Electrical Connectors on Left Rear of Engine ]

Removing and installing, refer to => [ Heated Oxygen Sensor 2 (G108) and Oxygen Sensor 2 after Catalytic Converter (G131) ] Heated Oxygen Sensor 2 (G108) and Oxygen Sensor 2 After Catalytic Converter (G131)

18 Ignition Coils, Cylinder 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)

Removing and installing, refer to => [ Ignition Coils ] Service and Repair

19 Oil Pressure Regulation Valve (N428)

Component location, refer to => [ Installation Location ]

20 Charge Air Coolant Pump (V188)

Component location, refer to => [ Location ]

21 After-Run Coolant Pump (V51)

Depending on the vehicle equipment level or the country

Component location, refer to => [ Location ]

22 Intake Air Temperature (IAT) Temperature Sensor 2 (G430) / Charge Air Pressure Sensor 2 (G447)

Component location, refer to => [ Installation Location / ]

23 Cylinder Head Coolant Valve (N489)

24 Camshaft Position (CMP) Sensor 2 (G163)

Component location, refer to => [ Installed Location: CMP Sensor and Exhaust Camshaft Control Valve Cylinder Bank 2 (left) ]

Component Location Engine Control Module (J623)





- 1 - inside the plenum chamber on the left side.

Component Location Accelerator Pedal Position Sensor (G79) / Accelerator Pedal Position Sensor 2 (G185)





Inside the accelerator pedal module

The accelerator pedal position sensor and accelerator pedal position sensor 2 are part of the accelerator pedal module and cannot be replaced separately.

Component Location Brake Lamp Switch (F)





Inside the footwell at the brake pedal

Removing and installing

Electrical Connectors on Right Rear of Engine





1. For cylinder bank 1 fuel injectors

2. For the throttle valve control module (J338)

3. For Knock Sensor (KS) 1 (G61)

4. For the Heated Oxygen Sensor (HO2S) (G39) with Oxygen Sensor (O2S) Heater (Z19)

5. For O2S after three way catalytic converter (G130) with heater for O2S 1 after catalytic converter (Z29)


Electrical Connectors on Left Rear of Engine





1. For O2S 2 after catalytic converter (G131) with heater for O2S 2 after catalytic converter (Z30)

2. For the HO2S 2 (G108) with O2S 2 heater (Z28)

3. For cylinder bank 2 fuel injectors and fuel pressure sensor (G247)

4. To Knock Sensor (KS) 2 (G66)


Oxygen Sensors Location, Cylinder Bank 1 (right)





1. Heated oxygen sensor (G39) with O2S heater (Z19)

2. O2S after three way catalytic converter (G130) with heater for O2S 1 after catalytic converter (Z29)


Oxygen Sensors Location, Cylinder Bank 2 (left)





1. HO2S 2 (G108) with O2Sr 2 heater (Z28)

2. O2S 2 after catalytic converter (G131) with heater for O2S 2 after catalytic converter (Z30)


Component Location on the High Pressure Pump





At right side of the cylinder head

1. Low fuel pressure sensor (G410)

2. Fuel metering valve (N290)


Component Location Under the Intake Manifold Lower Section, Cylinder Bank 1 (right)





1. Cylinder 1 fuel injector (N30)

2. Cylinder 2 fuel injector (N31)

3. Cylinder 3 fuel injector (N32)

4. KS 1 (G61)


Installed Location Engine Temperature Control Sensor (G694)





- 1 - under the lower intake manifold, cylinder bank 1 (right side)

Component Location Under the Intake Manifold Lower Section, Cylinder Bank 2 (left)





1. Cylinder 6 fuel injector (N84)

2. Cylinder 5 fuel injector (N83)

3. Cylinder 4 fuel injector (N33)

4. Fuel pressure sensor (G247)

5. KS 2 (G66)


Location Throttle Valve Control Module (J338)





Behind, on the supercharger

Installation Location Control Valve Control Unit (J808)





- 3 - on the back of the compressor.

Installed Location Intake Manifold Runner Position Sensor (G336)





- 1 - at the front, on the right side of the lower intake manifold

Intake manifold runner position sensor 2 (G512) is installed as a mirror image.

Installation Location Intake Air Temperature (IAT) Sensor (G42) / Manifold Absolute Pressure (MAP) Sensor (G71)





behind, on the compressor with the charge air cooler.

1. Connector for IAT sensor / MAP sensor


Installation Location Charge Air Pressure Sensor (G31) / Intake Manifold Temperature Sensor (G72)





On the right side, on the supercharger with the charge air cooler.

1. Connector for charge air pressure sensor / intake manifold temperature sensor


The IAT temperature sensor 2 (G430) / charge air pressure sensor 2 (G447) are arranged as mirror image of each other.

Installed Location: Camshaft Position (CMP) Sensor and Exhaust Camshaft Control Valve Cylinder Bank 1 (right)





1. Camshaft adjustment valve 1 (N205)

2. CMP sensor (G40)


Installed Location: CMP Sensor and Exhaust Camshaft Control Valve Cylinder Bank 2 (left)





1. Camshaft Position Sensor 2 (G163)

2. Camshaft Adjustment Valve 2 (N208)


Installation Location Oil Pressure Regulation Valve (N428)





- 4 - on the left side at the bottom of the engine.

Engine Coolant Temperature (ECT) Sensor (G62) Location





At front on engine.

1. Connector for coolant temperature sensor (G62)

Location Charge Air Cooling Pump (V188)





Inside the left front wheel housing

2 Charge air cooling pump connector

Location After-Run Coolant Pump (V51)





Left side, at the front, on the engine

2 After-run coolant pump connector

Location Engine Speed (RPM) Sensor (G28)





At the bottom of the timing chain guard lower section

2 Engine speed sensor (G28) connector

Installed Location: Secondary Air Injection Solenoid Valve and Intake Manifold Runner Control (IMRC) Valve (N316)





behind, on the compressor with the charge air cooler.

1. AIR solenoid valve (N112)

2. IMRC Valve (N316)

3. AIR solenoid valve 2 (N320)


Component Location of AIR Pump Motor (V101)





Inside the right front wheel housing.

4 AIR pump motor connector

Installed location: AIR Sensor 1 (G609)





On the back of the engine.

1. AIR sensor 1 connector