Component Locations Overview
Component Locations Overview
Right side of the engine compartment
1 - Mass Air Flow (MAF) Sensor (G70)/Intake Air Temperature (IAT) Sensor (G42)
• Removing and installing, refer to => [ Mass Air Flow Sensor ] Service and Repair
2 - Engine Control Module (J623)
• Removing and installing, refer to => [ Engine Control Module ] Service and Repair
3 - Electrical harness connectors
• For Heated Oxygen Sensor (HO2S) (G39) (in front of catalytic converter) with Oxygen Sensor (O2S) Heater (Z19)
• For Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) (G130) with Oxygen Sensor (O2S) Heater 1 (behind Three Way Catalytic Converter (TWC)) (Z29)
• Component location, refer to => [ Cylinder Bank 1 (Right) Oxygen Sensor Connectors ]
4 - Camshaft Adjustment Valve 1 (exhaust) (N318)
5 - Camshaft Adjustment Valve 1 (N205)
• Component location, refer to => [ Component Location View from Inside from Right
Cylinder Head ]
6 - Engine Coolant Temperature (ECT) Sensor (G62)
7 - Throttle Valve Control Module (J338)
• After replacing the Throttle Valve Control Module (J338), select "adapt throttle valve control module" in "Guided Functions".
8 - Knock Sensor (KS) 2 (G66)
• Component location, refer to => [ Component Location View from Inside from Right
Cylinder Head ]
• Electrical harness connector, refer to => [ Component Location Front on Engine ]
• Removing and installing, refer to => [ Knock Sensors ] Service and Repair
• 20 Nm
9 - Fuel Pressure Sensor (G247)
• Component location, refer to => [ Component Location View from Inside from Right
Cylinder Head ]
• 25 Nm
• coat the thread with clean oil
10 - Components on front of engine
• Component location, refer to => [ Component Location Front on Engine ]
• Intake Flap Motor (V157)
• Beginning with MY 2009, the Variable Intake Manifold Runner Motor (V157) has become the Intake Manifold Tuning Valve (N316)
• Intake Manifold Runner Position Sensor (G336)
• Variable Intake Manifold Runner Motor (V183)
• Beginning with MY 2009, the Variable Intake Manifold Runner Motor (V183) has become the Intake Manifold Tuning Valve (N156)
• Intake Manifold Runner Position Sensor 2 (G512)
• Electrical connector from Knock Sensor (KS) 4 (G199)
• Electrical connector from Knock Sensor (KS) 3 (G198)
• Electrical connector from Knock Sensor (KS) 1 (G61)
• Electrical connector from Knock Sensor (KS) 2 (G66)
11 - Knock Sensor (KS) 1 (G61)
• Component location, refer to => [ Component Location View from Inside from Right
Cylinder Head ]
• Electrical harness connector, refer to => [ Component Location Front on Engine ]
• Removing and installing, refer to => [ Knock Sensors ] Service and Repair
• 20 Nm
12 - Camshaft Position (CMP) sensor (G40)
• Component location, refer to => [ Component Location View from Inside from Right
Cylinder Head ]
13 - Electrical connector from Knock Sensor (KS) 1 (G61)
• Electrical harness connector, refer to => [ Component Location Front on Engine ]
14 - Electrical connector from Knock Sensor (KS) 2 (G66)
• Electrical harness connector, refer to => [ Component Location Front on Engine ]
15 - Fuel Metering Valve (N290)
• Component location, refer to => [ Location of High Pressure Pumps ]
16 - High pressure pump
• With Fuel Metering Valve (N290)
• Component location, refer to => [ Location of High Pressure Pumps ]
• Removing and installing, refer to => [ High Pressure Pump ] High Pressure Pump
17 - 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)
• Ignition Coil 4 with Power Output Stage (N292)
• Removing and installing, refer to => [ Ignition Coils ] Service and Repair
18 - Camshaft position (CMP) sensor 3 (G300)
• Attached to outside of cylinder head
• Component location, refer to => [ Location on Right Cylinder Bank 1 ]
19 - Secondary Air Injection (AIR) Pump Motor (V101)
• Front right below headlamp
20 - Intake Air Switch-Over Valve (N335)
Left side of the engine compartment
1 - High pressure pump
• With Fuel Metering Valve 2 (N402)
• Component location, refer to => [ Location of High Pressure Pumps ]
• Removing and installing, refer to => [ High Pressure Pump ] High Pressure Pump
2 - Low Fuel Pressure Sensor (G410)
• Component location, refer to => [ Location of High Pressure Pumps ]
• The installation location changed in MY 2009, refer to => [ Installation Locations on the Inside of the
Left Cylinder Head (Running Change in MY 2009) ]
3 - Evaporative Emission (EVAP) Canister Purge Regulator Valve (N80)
• Evaporative Emission (EVAP) Canister Purge Solenoid Valve 2 (N115)
4 - Camshaft Adjustment Valve 2 (N208)
• Component location, refer to => [ Component Location View from Inside from Left
Cylinder Head ]
5 - Electrical harness connectors
• For the Heated Oxygen Sensor (HO2S) 2 (G108) (in front of catalytic converter) with Oxygen Sensor (O2S) 2 Heater (Z28)
• For the Oxygen Sensor (O2S) 2 Behind Three Way Catalytic Converter (TWC) (G131) with Oxygen Sensor (O2S) Heater 2 (behind Three Way Catalytic Converter (TWC)) (Z30)
• Component location, refer to => [ Cylinder Bank 2 (Left) Oxygen Sensor Connectors ]
6 - Camshaft Adjustment Valve 2 (exhaust) (N319)
• Component location, refer to => [ Location on Left Cylinder Bank 2 ]
7 - Camshaft Position (CMP) Sensor 4 (G301)
• Component location, refer to => [ Location on Left Cylinder Bank 2 ]
8 - Ignition coils, Cylinder bank 2
• Ignition Coil 5 with Power Output Stage (N323)
• Ignition Coil 6 with Power Output Stage (N324)
• Ignition Coil 7 with Power Output Stage (N325)
• Ignition Coil 8 with Power Output Stage (N326)
• Component location, refer to => [ Location on Left Cylinder Bank 2 ]
• Removing and installing, refer to => [ Ignition Coils ] Service and Repair
9 - Fuel Metering Valve 2 (N402)
• Common component with high pressure pump
• Component location, refer to => [ Location of High Pressure Pumps ]
10 - Camshaft Position (CMP) Sensor 2 (G163)
• Component location, refer to => [ Component Location View from Inside from Left
Cylinder Head ]
11 - Knock Sensor (KS) 3 (G198)
• Component location, refer to => [ Component Location View from Inside from Left
Cylinder Head ]
• Electrical harness connector, refer to => [ Component Location Front on Engine ]
• Removing and installing, refer to => [ Knock Sensors ] Service and Repair
• 20 Nm
12 - Knock Sensor (KS) 4 (G199)
• Component location, refer to => [ Component Location View from Inside from Left
Cylinder Head ]
• Electrical harness connector, refer to => [ Component Location Front on Engine ]
• Removing and installing, refer to => [ Knock Sensors ] Service and Repair
• 20 Nm
13 - Components on front of engine
• Component location, refer to => [ Component Location Front on Engine ]
• Intake Flap Motor (V157)
• Beginning with MY 2009, the Variable Intake Manifold Runner Motor (V157) has become the Intake Manifold Tuning Valve (N316)
• Intake Manifold Runner Position Sensor (G336)
• Variable Intake Manifold Runner Motor (V183)
• Beginning with MY 2009, the Variable Intake Manifold Runner Motor (V183) has become the Intake Manifold Tuning Valve (N156)
• Intake Manifold Runner Position Sensor 2 (G512)
• Electrical connector from Knock Sensor (KS) 4 (G199)
• Electrical connector from Knock Sensor (KS) 3 (G198)
• Electrical connector from Knock Sensor (KS) 1 (G61)
• Electrical connector from Knock Sensor (KS) 2 (G66)
A - Engine Speed (RPM) Sensor (G28)
B - Throttle Position (TP) Sensor (G79)/Accelerator Pedal Position Sensor 2 (G185)
• In footwell on accelerator pedal (both sensors are integrated into one housing)
C - Brake Light Switch (F)/Brake Pedal Switch (F47)
• Component location, refer to => [ Installation Location on Pedal Mount ]
D - Clutch Position Sensor (G476) and Clutch Pedal Starter Interlock Switch (F194)
• In footwell on clutch pedal
• Component location, refer to => [ Installation Location on Pedal Mount ]
E - Fuel Pump (FP) Control Module (J538)
F - Oil Pressure Switch (F1)
G - After-Run Coolant Pump (V51)
• Only installed in countries with hot climates
H - Heated Oxygen Sensor (HO2S) (G39) before catalytic converter with Oxygen Sensor (O2S) Heater (Z19)
• Location of electrical connector, refer to => [ Cylinder Bank 1 (Right) Oxygen Sensor Connectors ]
• Component location of oxygen sensors, refer to => [ Oxygen Sensors Location, Cylinder Bank 1 (Right) ]
• Removing and installing, refer to => [ Heated Oxygen Sensor, in Front of Catalytic Converter and Oxygen Sensor, behind Three Way Catalytic Converter, Cylinder Bank 1 ] Heated Oxygen Sensor, in Front of Catalytic Converter and Oxygen Sensor, behind Three Way Catalytic Converter, Cylinder Bank 1
• 55 Nm
I - Heated Oxygen Sensor (HO2S) 2 (G108) before catalytic converter with Oxygen Sensor (O2S) 2 Heater (Z28)
• Location of electrical connector, refer to => [ Cylinder Bank 2 (Left) Oxygen Sensor Connectors ]
• Component location of oxygen sensors, refer to => [ Oxygen Sensors Location, Cylinder Bank 2 (left) ]
• Removing and installing, refer to => [ Heated Oxygen Sensor, in Front of Catalytic Converter and Oxygen Sensor, behind Three Way Catalytic Converter, Cylinder Bank 1 ] Heated Oxygen Sensor, in Front of Catalytic Converter and Oxygen Sensor, behind Three Way Catalytic Converter, Cylinder Bank 1
• 55 Nm
J - Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) (G130) with Oxygen Sensor (O2S) 1 (behind Three Way Catalytic Converter (TWC)) Heater (Z29)
• Location of electrical connector, refer to => [ Cylinder Bank 1 (Right) Oxygen Sensor Connectors ]
• Component location of oxygen sensors, refer to => [ Oxygen Sensors Location, Cylinder Bank 1 (Right) ]
• Removing and installing, refer to => [ Heated Oxygen Sensor, in Front of Catalytic Converter and Oxygen Sensor, behind Three Way Catalytic Converter, Cylinder Bank 1 ] Heated Oxygen Sensor, in Front of Catalytic Converter and Oxygen Sensor, behind Three Way Catalytic Converter, Cylinder Bank 1
• 55 Nm
K - Oxygen Sensor (O2S) 2 Behind Three Way Catalytic Converter (TWC) (G131) with Oxygen Sensor (O2S) 2 (behind Three Way Catalytic Converter (TWC)) Heater (Z30)
• Location of electrical connector, refer to => [ Cylinder Bank 2 (Left) Oxygen Sensor Connectors ]
• Component location of oxygen sensors, refer to => [ Oxygen Sensors Location, Cylinder Bank 1 (Right) ]
• Removing and installing, refer to => [ Heated Oxygen Sensor, in Front of Catalytic Converter and Oxygen Sensor, behind Three Way Catalytic Converter, Cylinder Bank 1 ] Heated Oxygen Sensor, in Front of Catalytic Converter and Oxygen Sensor, behind Three Way Catalytic Converter, Cylinder Bank 1
• 55 Nm
Location Engine Control Module (ECM) (J623)
• in the E-box in engine compartment, right
Removing and installing. Refer to => [ Engine Control Module ] Service and Repair.
Component location Throttle Position (TP) Sensor (G79)/Accelerator Pedal Position Sensor 2 (G185)
• In accelerator pedal module - arrow -.
• The Throttle Position (TP) Sensor (G79) and Accelerator Pedal Position Sensor 2 (G185) are integrated into the accelerator pedal module and cannot be replaced separately.
Installation Location on Pedal Mount
1. Clutch Position Sensor (G476) (manual transmission only)
2. Clutch Pedal Starter Interlock Switch (F194) (manual transmission only)
3. Brake Light Switch (F)/Brake Pedal Switch (F47), Removing and Installing
Fuel Pump (FP) Control Module (J538)
9-Compartment Relay and Fuse Carrier Behind Storage Compartment on Driver's Side
1 Power Supply Relay (terminal 15) (J329)
4 Starter Relay (J53)
6 Starter Relay 2 (J695)
For the current routing.
Relay and Fuse Carrier in Left E-Box Plenum Chamber
1.2 Coolant Circulation Pump Relay (J151)
2 Engine Component Power Supply Relay (J757)
3 Motronic Engine Control Module (ECM) Power Supply Relay (J271)
For the current routing.
Relay and Fuse Carrier in Right E-Box Plenum Chamber
3 Secondary Air Injection (AIR) Pump Relay (J299)
B Secondary Air Injection (AIR) Pump Relay (J299) fuse
For the current routing.
After-Run Coolant Pump (V51)
Cylinder Bank 1 (Right) Oxygen Sensor Connectors
1 Heated Oxygen Sensor (HO2S) (G39)
2 Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) (G130)
Cylinder Bank 2 (Left) Oxygen Sensor Connectors
1 Heated Oxygen Sensor (HO2S) 2 (G108)
2 Oxygen Sensor (O2S) 2 Behind Three Way Catalytic Converter (TWC) (G131)
Oxygen Sensors Location, Cylinder Bank 1 (Right)
1. Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) (G130)
2. Heated Oxygen Sensor (HO2S) (G39)
Tightening Specifications: 55 Nm
Removing and installing. Refer to => [ Heated Oxygen Sensor, in Front of Catalytic Converter and Oxygen Sensor, behind Three Way Catalytic Converter, Cylinder Bank 1 ] Heated Oxygen Sensor, in Front of Catalytic Converter and Oxygen Sensor, behind Three Way Catalytic Converter, Cylinder Bank 1.
Oxygen Sensors Location, Cylinder Bank 2 (left)
1. Heated Oxygen Sensor (HO2S) 2 (G108)
2. Oxygen Sensor (O2S) 2 Behind Three Way Catalytic Converter (TWC) (G131)
Tightening Specifications: 55 Nm
Removing and installing. Refer to => [ Heated Oxygen Sensor 2, in Front of Catalytic Converter and Oxygen Sensor 2 behind Three Way Catalytic Converter, Cylinder Bank 2 ] Heated Oxygen Sensor 2, in Front of Catalytic Converter and Oxygen Sensor 2 behind Three Way Catalytic Converter, Cylinder Bank.
Location Engine Speed (RPM) Sensor (G28) - arrow -
Component location of Engine Coolant Temperature (ECT) Sensor (G62)
• Right on rear coolant pipe - arrow -.
• Removing and installing.
Intake Air Switch-Over valve (N335) - 2 -
Location on Right Cylinder Bank 1
1. Camshaft position (CMP) Sensor 3 (G300)
2. Camshaft Adjustment Valve 1 (exhaust) (N318)
3. Ignition Coil 4 with Power Output Stage (N292)
4. Ignition Coil 3 with Power Output Stage (N291)
5. Ignition Coil 2 with Power Output Stage (N127)
6. Ignition Coil 1 with Power Output Stage (N70)
Location on Left Cylinder Bank 2
1. Ignition Coil 5 with Power Output Stage (N323)
2. Ignition Coil 6 with Power Output Stage (N324)
3. Ignition Coil 7 with Power Output Stage (N325)
4. Ignition Coil 8 with Power Output Stage (N326)
5. Camshaft Adjustment Valve 2 (exhaust) (N319)
6. Camshaft Position (CMP) Sensor 4 (G301)
Component Location View from Inside from Right Cylinder Head
1. Fuel Pressure Sensor (G247)
2. Knock Sensor (KS) 1 (G61)
3. Camshaft Position (CMP) Sensor (G40)
4. Cylinder 1 Fuel Injector (N30)
5. Cylinder 2 Fuel Injector (N31)
6. Cylinder 3 Fuel Injector (N32)
7. Cylinder 4 Fuel Injector (N33)
8. Camshaft Adjustment Valve 1 (N205)
9. Knock Sensor (KS) 2 (G66)
Installation locations on the inside of the right cylinder head (running change in MY 2009), see next illustration
Installation Locations on the Inside of the Right Cylinder Head (Running Change in MY 2009)
1. Intake Manifold Runner Position Sensor (G336)
2. Camshaft Position (CMP) sensor (G40)
3. Fuel Metering Valve (N290)
4. Camshaft Adjustment Valve 1 (N205)
5. Low Fuel Pressure Sensor (G410)
6. Cylinder 1 Fuel Injector (N30)
7. Cylinder 2 Fuel Injector (N31)
8. Cylinder 3 Fuel Injector (N32)
9. Cylinder 4 Fuel Injector (N33)
10. Fuel Pressure Sensor (G247)
11. Intake Manifold Runner Control (IMRC) Valve (N316)
12. Knock Sensor (KS) 1 (G61)
13. Knock Sensor (KS) 2 (G66)
Component Location View from Inside from Left Cylinder Head
1. Knock Sensor (KS) 4 (G199)
2. Camshaft Adjustment Valve 2 (N208)
3. Camshaft position (CMP) sensor 2 (G163)
4. Cylinder 8 Fuel Injector (N86)
5. Cylinder 7 Fuel Injector (N85)
6. Cylinder 6 Fuel Injector (N84)
7. Cylinder 5 Fuel Injector (N83)
8. Knock Sensor (KS) 3 (G198)
Installation locations on the inside of the left cylinder head (running change in MY 2009), see next illustration
Installation Locations on the Inside of the Left Cylinder Head (Running Change in MY 2009)
1. Camshaft Adjustment Valve 2 (N208)
2. Fuel Metering Valve 2 (N402) (attached into the high pressure pump)
3. Camshaft position (CMP) Sensor 2 (G163)
4. Intake Manifold Runner Position Sensor 2 (G512)
5. Cylinder 5 Fuel Injector (N83)
6. Cylinder 6 Fuel Injector (N84)
7. Cylinder 7 Fuel Injector (N85)
8. Cylinder 8 Fuel Injector (N86)
9. Low Fuel Pressure Sensor (G410)
10. Knock Sensor (KS) 4 (G199)
11. Knock Sensor (KS) 3 (G198)
Component Location Front on Engine
1 Knock Sensor (KS) 2 (G66) (brown connector)
2 Knock Sensor (KS) 1 (G61) (black connector)
3 Intake Manifold Runner Position Sensor (G336)
4 Variable Intake Manifold Runner Motor (V183) (black connector)
5 Intake Flap Motor (V157) (brown connector)
6 Intake Manifold Runner Position Sensor 2 (G512)
7 Knock Sensor (KS) 4 (G199) (black connector)
8 Knock Sensor (KS) 3 (G198) (brown connector)
As a running change in MY 2009, items - 4 and 5 - have been replaced by vacuum-controlled valves.
• The Variable Intake Manifold Runner Motor (V183) has become the Intake Manifold Tuning Valve (N156).
• The Intake Flap Motor (V157) has become the Intake Manifold Runner Control Valve (N316).
Installation Location on the Front of the Engine (introduced as a Running Change in MY 2009)
1 Knock Sensor (KS) 2 (G66) (brown connector)
2 Knock Sensor (KS) 1 (G61) (black connector)
3 Low Fuel Pressure Sensor (G410)
4 Intake Manifold Runner Position Sensor (G336)
5 Fuel Pressure Sensor (G247)
6 Intake Manifold Runner Control Valve (N316) (CVTS tumble flaps)
7 Intake Manifold Tuning (IMT) Valve (N156)
8 Intake Manifold Runner Position Sensor 2 (G512)
9 Fuel Metering Valve (N290)
10 Knock Sensor (KS) 4 (G199) (black connector)
11 Knock Sensor (KS) 3 (G198) (brown connector)
Location of Oil Pressure Switch (F1)
1 Oil Pressure Switch (F1)
2 Electrical connector from Oil Pressure Switch (F1)
Location of High Pressure Pumps
1 Right high pressure pump (cylinder bank 1)
2 Low Fuel Pressure Sensor (G410)
3 Left high pressure pump (cylinder bank 2)
4 Fuel Metering Valve 2 (N402)
5 Fuel Metering Valve (N290)
Map Controlled Engine Cooling Thermostat (F265) location
• At front left of engine.
2 Map Controlled Engine Cooling Thermostat (F265)
• Ignore - 1 -.