Fuel Injection System Component Location Overview

Fuel Injection System Component Location Overview

• The intake air temperature sensor (G42) is installed on the intake manifold with the manifold absolute pressure sensor (G71).

The following components are not shown in the overview:

Manifold Absolute Pressure (MAP) sensor

• Installed location: Below the throttle valve control module (J338)

Accelerator pedal position sensor (G79) / accelerator pedal position sensor 2 (G185)

• Installed location: In the accelerator pedal

Leak detection pump (V144)

• Installed location: Under the right rear wheel housing liner.

Clutch position sensor (G476)

• Only for vehicles with a manual transmission.

• Installed location: On the clutch master cylinder.

Component Location Overview






1 Fuel Injector (N30, N31, N32, N33, N83)

• Removing and installing, refer to => [ Fuel Injectors ] Fuel Injectors.

2 Knock Sensor 1 (G61) / Knock Sensor 2 (G66)

• Knock sensor 1 installed location, refer to => [ Knock Sensor Overview ] Service and Repair.



• Knock sensor 2 installed location, refer to => [ Knock Sensor Overview ] Service and Repair.

3 Secondary Air Injection Solenoid Valve (N112)

• For the Secondary Air Injection (AIR) system.

• Checking, refer to => [ Secondary Air Injection Solenoid Valve (N112), Checking ] Testing and Inspection.

4 Heated Oxygen Sensor (G39) , Oxygen Sensor in Bank 1 Center Three Way Catalytic Converter (G465) (engine code CBUA only) and Oxygen Sensor after Three Way Catalytic Converter (G130)

• 55 Nm

• Only use hot bolt paste (G 052 118 A3) to grease the threads, do not allow the paste to get onto the slits of the oxygen sensor body.

5 Engine Speed Sensor (G28)

• Bolted to the control housing cover.

6 Ignition Coil with Power Output Stage (N70, N127, N291, N292, N323)

• Removing and installing, refer to => [ Ignition Coils with Power Output Stages ] Service and Repair.

7 Camshaft Adjustment Valve 1 (N205)

8 Secondary Air Injection Pump Motor (V101)

• Removing and installing, refer to => [ Secondary Air Injection Pump Motor (V101) ] Service and Repair.

9 Engine Coolant Temperature Sensor (G62)

• If necessary, release the pressure in the cooling system before removing.

10 Motronic Engine Control Module (J220)

• Installed location next the engine compartment E-box on the left side.

• Removing and installing, refer to => [ Motronic Engine Control Module (J220) ] Service and Repair.

11 E-Box, Left Side of the Engine Compartment

• Relay and fuse installed location.