Component Location Overview
Component Location Overview
• From Model Year (MY) 2009, the Mass Air Flow (MAF) sensor has been deleted and the Intake Air Temperature (IAT) sensor is integrated with the intake manifold pressure sensor on the intake manifold.
The following Components are Not Displayed in the Component Location Overview
Manifold Absolute Pressure (MAP) sensor
• Installation location: under the throttle valve control module.
Throttle Position (TP) sensor/accelerator pedal position sensor 2
• Component location: In the accelerator pedal.
Leak detection pump (LDP)
• Component location: Under the right rear wheel housing liner.
Clutch position sensor
• Only for vehicles with a manual transmission.
• Component location: At the clutch slave cylinder.
1 Fuel injector (N30, N31, N32, N33, N83)
• Removing and installing, refer to --> [ Fuel Injectors ] Fuel Injectors.
2 Camshaft Position (CMP) sensor (G40)
3 81 pin electrical connector
• Disconnect and connect the connector with the ignition switched off.
• Release to disconnect.
4 Motronic engine control module (J220)
• Component location: In the plenum chamber.
5 40 pin electrical connector
• Disconnect and connect the connector with the ignition switched off.
• Release to disconnect.
6 Secondary Air Injection (AIR) solenoid valve (N112)
• For the AIR system.
• Checking, refer to --> [ Secondary Air Injection Solenoid Valve, Checking ] Testing and Inspection.
7 Engine Coolant Temperature (ECT) sensor (G62)
• If necessary release the pressure in the cooling system before removing.
8 Evaporative Emission (EVAP) canister purge regulator valve (N80)
• Installation position: Arrow points in direction of flow.
9 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.
10 Mass Air Flow (MAF) sensor (G70) with Intake Air Temperature (IAT) sensor (G42)
• From MY 2009, the MAF sensor has been deleted and the IAT sensor is integrated with the intake manifold pressure sensor on the intake manifold.
11 E-box, in the engine compartment, on the left side
Component location of:
• AIR pump relay
• Fuel pump relay
• Power supply relay (terminal 30, B+)
• Power supply relay (terminal 15)
• Fasteners
12 Engine speed (RPM) sensor (G28)
• Secured to the control housing cover.
13 Throttle valve control module (J338)
• Removing and installing, refer to --> [ Throttle Valve Control Module ] Service and Repair.
14 Camshaft adjustment valve 1 (N205)
15 Secondary Air Injection (AIR) pump motor (V101)
• Removing and installing, refer to --> [ Secondary Air Injection Pump Motor ] Service and Repair.
16 Knock Sensor (KS) 1 (G61)
• Component location, refer to --> [ Cylinder Block Components, Rear ] Cylinder Block Components, Rear.
17 Knock Sensor (KS) 2 (G66)
• Component location, refer to --> [ Cylinder Block Components, Rear ] Cylinder Block Components, Rear.
18 Connector
• Black, 6 pin.
• Contacts are gold plated.
• For the Heated Oxygen Sensor (HO2S) before the catalytic converter and the Oxygen Sensor (O2S) heater
• Component location: on the left side of the bulkhead.
19 Heated Oxygen Sensor (HO2S) (G39) in front of the catalytic converter, 55 Nm
• Component location: In the exhaust manifold.
• Only use hot bolt paste (G 052 118 A3) to grease the threads; do not let the hot bolt paste (G 052 118 A3) get onto the slits of the sensor body.
20 4 pin electrical connector
• Engine codes BGQ and CBUA only.
• Contacts are gold plated
• Black
• For the Oxygen Sensor (O2S) - center Three Way Catalytic Converter (TWC), Bank 1 and the O2S heater - center TWC.
• Component location, refer to --> [ Front Exhaust Pipe with Catalytic Converter ] Front Exhaust Pipe with Catalytic Converter.
21 Oxygen Sensor (O2S) - center Three Way Catalytic Converter (TWC), Bank 1 (G465), 55 Nm
• Engine codes BGQ and CBUA only
• Component location: In the center catalytic converter.
• Only use hot bolt paste (G 052 118 A3) to grease the threads; do not let the hot bolt paste (G 052 118 A3) get onto the slits of the sensor body.
22 4 pin electrical connector
• Contacts are gold plated.
• Brown
• For the O2S behind TWC and the O2S heater 1 behind TWC.
• Component location, refer to --> [ Front Exhaust Pipe with Catalytic Converter ] Front Exhaust Pipe with Catalytic Converter.
23 Oxygen Sensor (O2S) behind Three Way Catalytic Converter (TWC) (G130), 55 Nm
• Component location: In the rear catalytic converter.
• Only use hot bolt paste (G 052 118 A3) to grease the threads ; do not let the hot bolt paste (G 052 118 A3) get onto the slits of the sensor body.
AIR Pump Relay (J299)
• In the E-box, in the engine compartment, on the lower right - 1 -
Power Supply Relay (terminal 30, B+) (J317)
• In the E-box, in the engine compartment - 1 -
Fuel Pump Relay (J17)
• In the E-box, in the engine compartment - 2 -
Power Supply Relay (terminal 15) (J329)
• In the E-box, in the engine compartment - 3 -