Component Locations Overview
Component Locations Overview
Components A through K are not shown in the exploded view illustration.
1 - Camshaft Adjustment Valve 1 (N205)
2 - Wastegate Bypass Regulator Valve (N75)
• Installed directly on turbocharger, refer to => [ Components on Turbocharger ]
3 - Turbocharger Recirculating Valve (N249)
• Installed directly on turbocharger, refer to => [ Components on Turbocharger ]
4 - Ignition Coils with Power Output Stages
• Removing and installing, refer to => [ Ignition Coils with Power Output Stages ] Service and Repair
• Ignition coil 1 with power output stage (N70)
• Ignition coil 2 with power output stage (N127)
• Ignition coil 3 with power output stage (N291)
• Ignition coil 4 with power output stage (N292)
• The ignition coils must be pulled out of the cylinder head using the ignition coil puller (T40039)
5 - Engine Control Module (J623)
• Removing and installing, refer to => [ Engine Control Module (J623) ] Service and Repair
6 - Heated Oxygen Sensor (HO2S) (G39) and Oxygen Sensor (O2S) Heater (Z19)
• Component location, refer to => [ Component Location of Oxygen Sensor ]
• Heated oxygen sensors assembly overview, refer to => [ Heated Oxygen Sensors Overview ] Heated Oxygen Sensors Overview
7 - High Pressure Pump
• Installation location, refer to => [ High Pressure Pump ]
• Removing and installing, refer to => [ High Pressure Pump ] High Pressure Pump
8 - Fuel Pressure Regulator Valve (N276)
• Installation location, refer to => [ High Pressure Pump ]
9 - Electrical Connector from the Heated Oxygen Sensor (HO2S) (G39) and Oxygen Sensor (O2S) heater (Z19)
• Component location, refer to => [ Connector ]
10 - Mass Airflow (MAF) Sensor (G70) and Intake Air Temperature (IAT) Sensor 2 (G299)
• Removing and installing, refer to => [ Mass Airflow Sensor (G70) ] Service and Repair
11 - Engine Coolant Temperature Sensor on Radiator Outlet (G83)
12 - Channel Separating Plate Vacuum Diaphragm (intake manifold flaps)
13 - Intake Manifold Runner Control (IMRC) Valve (N316)
14 - Engine Speed Sensor (G28)
• 4.5 Nm
• Removing and installing, refer to => [ Engine Speed Sensor (G28) ] Service and Repair
15 - Charge Air Pressure Sensor (G31)
16 - Connectors
• From the knock sensor 1 (G61) , installation location, refer to => [ Connectors ]
• From the Camshaft Position (CMP) sensor (G40) , installation location, refer to => [ Connectors ]
• For the fuel injectors, installation location, refer to => [ Connectors ]
17 - Throttle Valve Control Module (J338) , Electronic Power Control (EPC) Throttle Drive (G186)
• EPC throttle drive angle sensor 1 (G187) and EPC throttle drive angle sensor 2 (G188)
• After replacing the throttle valve control module (J338) , it must be adapted to the Engine Control Module (ECM) (J623) ; see vehicle diagnosis, testing and information system (VAS 5051B)
18 - Evaporative Emission (EVAP) Canister Purge Regulator Valve 1 (N80)
19 - Intake Air Temperature (IAT) Sensor (G42)
20 - Knock Sensor (KS) 1 (G61)
• 20 Nm
• Component location, refer to => [ Installation Location ]
• Removing and installing, refer to => [ Knock Sensor 1 (G61) ] Service and Repair
21 - Engine Coolant Temperature (ECT) Sensor (G62)
22 - Camshaft Position (CMP) Sensor (G40)
23 - Fuel Pressure Sensor (G247)
• 27 Nm
• Removing and installing, refer to => [ Fuel Pressure Sensor (G247) ] Service and Repair
24 - Oil Pressure Regulation Valve (N428)
25 - Oil Pressure Switch
• Reduced oil pressure switch (F378)
• Oil pressure switch (F22)
• Component location, refer to => [ Oil Pressure Switch ]
26 - Intake Manifold Runner Position Sensor (G336)
A - Data Link Connector (DLC)
• In knee bolster on driver's side
B - Fuel Pump (FP) Control Module (J538)
C - Brake Lamp Switch (F) and Brake Pedal Switch (F63)
D - Clutch Position Sensor (G476)
• Only on vehicles with a manual transmission
E - Accelerator Pedal Position Sensor (G79) and Accelerator Pedal Position Sensor 2 (G185)
• On accelerator pedal (both sensors are stored in one housing)
• If the accelerator pedal module or ECM is replaced in vehicles with automatic transmission, the kick-down function must be adapted.
F - Coolant Fan Control Module (J293)
G - Fuel Injectors
• Removing and installing, refer to => [ Fuel Injectors ] Fuel Injectors
• Cylinder 1 fuel injector (N30)
• Cylinder 2 fuel injector (N31)
• Cylinder 3 fuel injector (N32)
• Cylinder 4 fuel injector (N33)
H - After-Run Coolant Pump (V51)
I - Oxygen Sensor (O2S) after Three Way Catalytic Converter (TWC) (G130) and Heater for Oxygen Sensor (O2S) 1 after Catalytic Converter (Z29)
• Component location, refer to => [ Component Location of Oxygen Sensor ]
• Heated oxygen sensors assembly overview, refer to => [ Heated Oxygen Sensors Overview ] Heated Oxygen Sensors Overview
J - Electrical Connector from the Oxygen Sensor (O2S) after Three Way Catalytic Converter (TWC) (G130) and Heater for Oxygen Sensor (O2S) 1 after Catalytic Converter (Z29)
• Component location, refer to => [ Electrical Connector (under the cover) for the and ]
K - Relay and Fuse Carrier in E-box
Engine Control Module (ECM) (J623)
Accelerator Pedal Position Sensor (G79) and Accelerator Pedal Position Sensor 2 (G185)
2 Accelerator pedal module, electrical connector
Fuel Pump (FP) Control Module (J538) - 2 -
1 Fuel pump control module (J538) connector
2 Fuel pump control module (J538)
3 Transfer fuel pump (G6)
Brake Lamp Switch (F) and Brake Pedal Switch (F63)
High Pressure Pump - 2 -
1 Fuel pressure regulator valve (N276)
Evaporative Emission (EVAP) Canister Purge Regulator Valve 1 (N80) - 1 -
Knock Sensor (KS) 1 (G61) Installation Location
1. Electrical connector from KS 1
2. KS 1
Installed under the intake manifold and the coolant pump
IMRC Valve (N316) - 2 -
1 Intake manifold flap vacuum diaphragm
• The intake manifold flaps are the same as the channel separating plates.
Fuel Pressure Sensor (G247) - 1 -
Removing and installing, refer to => [ Fuel Pressure Sensor (G247) ] Service and Repair.
Intake Manifold Runner Position Sensor (G336) - 1 -
Oil Pressure Switch
1 Reduced oil pressure switch (F378)
2 Reduced oil pressure switch connector
3 Oil pressure switch (F22)
4 Oil pressure switch connector
Oil Pressure Regulation Valve (N428) - 3 -
Camshaft Adjustment Valve 1 (N205) - arrow -
Engine Speed Sensor (G28) - 1 -
Camshaft Position Sensor (G40) - 1 -
Connectors
1 From the CMP sensor (G40) and intake manifold runner position sensor
2 From the KS 1 (G61)
3 8-pin harness connector for fuel injectors
Engine Coolant Temperature (ECT) Sensor (G62) - 1 -
Installed below from the intake manifold inside the coolant pump.
Engine Coolant Temperature (ECT) Sensor on Radiator Outlet (G83) - 1 -
Charge Air Pressure Sensor (G31) - 2 -
Coolant Fan Control Module (J293)
1 Coolant fan control module, connector
• The coolant fan control module is integrated in the coolant fan (V7).
• In the illustration, the left fan is the coolant fan.
• In the illustration, the right fan is the right coolant fan (V35).
Connector
1. For the Heated Oxygen Sensor (HO2S) (G39) and Oxygen Sensor (O2S) heater (Z19)
Component Location of Oxygen Sensor
1. Heated Oxygen Sensor (HO2S) (G39) and Oxygen Sensor (O2S) heater (Z19)
Electrical Connector (under the cover) for the Oxygen Sensor (O2S) after Three Way Catalytic Converter (TWC) (G130) and Heater for Oxygen Sensor (O2S) 1 after Catalytic Converter (Z29)
Component Location of Oxygen Sensor
1. Oxygen Sensor (O2S) after Three Way Catalytic Converter (TWC) (G130) with Heater for Oxygen Sensor (O2S) 1 after Catalytic Converter (Z29)
• The arrow in the illustration points in the direction of travel.
Components on Turbocharger
1 Turbocharger
2 Tighten the wastegate bypass regulator valve (N75) to 3 Nm.
3 Tighten the turbocharger recirculating valve (N249) to 7 Nm (observe installation location, next illustration)
Observe Installed Location of Turbocharger Recirculating Valve (N249)
After-Run Coolant Pump (V51)
