Component Locations Overview

Right Side of the Engine Compartment

1. Heated Oxygen Sensor -G39-
   • 55 Nm
   • Component location, see Fig 22
   • Location of electrical connector, see Fig 18
   • Removing and installing, refer to Heated Oxygen Sensor -G39- IN FRONT OF BANK 1 RIGHT CATALYTIC CONVERTER 
2. Exhaust Camshaft Adjustment Valve 1 -N318-
   • 2.5 Nm
   • Replace O-rings
   • Component location, see Fig 8
3. Camshaft Adjustment Valve 1 -N205-
   • 2.5 Nm
   • Replace O-rings
   • Component location, see Fig 8
4. Oxygen Sensor after Three Way Catalytic Converter -G130-
   • 55 Nm
   • Component location, see Fig 22
   • Connector location, see Fig 18
   • Removing and installing, refer to Oxygen Sensor after Three Way Catalytic Converter -G130- BANK 1 RIGHT 
5. Connectors
   • For the fuel injectors, cylinder bank 1
   • For the throttle valve control module -J338-
   • For knock sensor (KS) 1 -G61-
   • For Heated oxygen sensor -G39-
   • For Oxygen sensor after three way catalytic converter -G130-
   • Connector locations Fig 18
6. Throttle Valve Control Module -J338-
   • With EPC throttle drive -G186-, EPC throttle drive angle sensor 1 -G187- and EPC throttle drive angle sensor 2 -G188-
   • After replacement, adapt in "Guided Functions  " operating mode under "Adapting throttle valve control module"
   • Component location, see Fig 20
7. EVAP Canister Purge Regulator Valve 1 -N80-
8. Intake Air Temperature (IAT) Sensor -G42- /Manifold Absolute Pressure (MAP) Sensor -G71-
   • Component location, see Fig 20
9. Fuel Injector, Cylinder Bank 1
   • Cylinder 3 Fuel Injector -N32-
   • Component location, see Fig 10
   • Removing and installing, refer to FUEL INJECTORS 
10. Knock Sensor (KS) 1 -G61-
    • Component location, see Fig 10
    • Location of electrical connector Fig 18
    • Removing and installing, refer to KNOCK SENSORS
11. Fuel Injectors, Cylinder Bank 1
    • Cylinder 1 Fuel Injector -N30-
    • Cylinder 2 Fuel Injector -N31-
    • Component location, see Fig 10
    • Removing and installing, refer to FUEL INJECTORS 
12. Intake Manifold Tuning (IMT) Valve Position Sensor -G513-
13. Intake Manifold Tuning (IMT) Valve -N156-
    • Component location, see Fig 15
14. Actuator for Intake Manifold Change-Over
    • Vacuum diaphragm
15. Engine Coolant Temperature (ECT) Sensor -G62-
    • Component location, see Fig 15
16. Camshaft Position Sensor -G40-
    • 9 Nm
    • Replace O-rings
    • Component location, see Fig 8
    • Removing and installing, refer to CAMSHAFT POSITION SENSOR
17. Camshaft Adjuster Actuators
    • Cam adjustment actuator 1 -F366-
    • Cam adjustment actuator 2 -F367-
    • Cam adjustment actuator 3 -F368-
    • Cam adjustment actuator 4 -F369-
    • Cam adjustment actuator 5 -F370-
    • Cam adjustment actuator 6 -F371-
    • Component location, see Fig 8
18. High Pressure Pump
    • With low fuel pressure sensor -G410- and fuel metering valve -N290-
    • Component location, see Fig 16
    • Removing and installing, refer to HIGH PRESSURE PUMP 
19. 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
20. Camshaft Position (CMP) Sensor 3 -G300-
    • 9 Nm
    • Replace O-rings
    • Component location, see Fig 8
    • Removing and installing, refer to CAMSHAFT POSITION SENSOR
21. Secondary Air Injection (AIR) Pump Motor -V101-
    • Not installed on all vehicles (EU 5 only)
    • Removing and installing, refer to SECONDARY AIR INJECTION PUMP MOTOR -V101-, REMOVING AND INSTALLING
22. Intake Air Switch-Over Valve -N335-
    • Not equipped on all vehicles

Left Side of the Engine Compartment

1. Left Holder for Connectors
   • For knock sensor (KS) 2 -G66-
   • For the fuel injectors, cylinder bank 2
   • For the fuel pressure sensor -G247-
   • Connector locations, see Fig 19
2. Oxygen Sensor 2 after Catalytic Converter -G131-
   • 55 Nm
   • Component location, see Fig 23
   • Location of electrical connector, see Fig 21
   • Removing and installing, refer to Oxygen Sensor 2 after Catalytic Converter -G131- BANK 2 LEFT 
3. Camshaft Adjustment Valve 2 -N208-
   • 2.5 Nm
   • Component location, see Fig 9
   • Replace O-rings
4. Exhaust Camshaft Adjustment Valve 2 -N319-
   • 2.5 Nm
   • Replace O-rings
   • Component location, see Fig 9
5. Engine Control Module -J623-
   • Component location, see Fig 3
   • Removing and installing, refer to Engine Control Module -J623- 
6. Heated Oxygen Sensor (HO2S) 2 -G108-
   • 55 Nm
   • Component location, see Fig 23
   • Location of electrical connector, see Fig 21
   • Removing and installing, refer to Heated Oxygen Sensor 2 -G108- IN FRONT OF BANK 2 LEFT CATALYTIC CONVERTER 
7. Camshaft Position (CMP) Sensor 4 -G301-
   • 9 Nm
   • Replace O-rings
   • Component location, see Fig 9
   • Removing and installing, refer to CAMSHAFT POSITION SENSOR
8. Oil Pressure Regulation Valve -N428-
   • Component location, see Fig 14
   • Removing and installing, refer to Oil Pressure Regulation Valve -N428-, REMOVING AND INSTALLING
9. 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
10. Camshaft Adjuster Actuators
    • Cam adjustment actuator 7 -F372-
    • Cam adjustment actuator 8 -F373-
    • Cam adjustment actuator 9 -F374-
    • Cam adjustment actuator 10 -F375-
    • Cam adjustment actuator 11 -F376-
    • Cam adjustment actuator 12 -F377-
    • Component location, see Fig 9
11. Camshaft Position (CMP) Sensor 2 -G163-
    • 9 Nm
    • Replace O-rings
    • Component location, see Fig 9
    • Removing and installing, refer to CAMSHAFT POSITION SENSOR
12. Intake Manifold Tuning (IMT) Valve Position Sensor -G513-
    • Component location, see Fig 15
13. Fuel Injector, Cylinder Bank 2
    • Cylinder 4 Fuel Injector -N33-
14. Fuel Pressure Sensor -G247-
    • Component location, see Fig 11
15. Knock Sensor (KS) 2 -G66-
    • Component location, see Fig 11
    • Connector location, see Fig 19
    • Removing and installing, refer to KNOCK SENSORS
16. Fuel Injectors, Cylinder Bank 216 -
    • Cylinder 5 Fuel Injector -N83-
    • Cylinder 6 Fuel Injector -N84-
    • Component location, see Fig 11
    • Removing and installing, refer to FUEL INJECTORS 
17. A -  Engine Speed (RPM) Sensor -G28-
    • 9 Nm
    • Component location, see Fig 17
    • Removing and installing, refer to Engine Speed Sensor -G28-, REMOVING AND INSTALLING
18. B -  Fuel Pump (FP) Control Module -J538-
    • Component location, see Fig 4
    • Removing and installing, refer to Fuel Pump Control Module -J538-, REMOVING AND INSTALLING
19. C -  Accelerator Pedal Position Sensor -G79- /Accelerator Pedal Position Sensor 2 -G185-
    • In footwell on accelerator pedal (both sensors are integrated into one housing)
    • Component location, see Fig 6
    • Removing and installing, refer to OVERVIEW - ACCELERATOR PEDAL MECHANISM
20. D -  Brake Light Switch -F- /Brake Pedal Switch -F47-
    • In footwell at brake pedal
    • Removing and installing, refer to BRAKE LAMP SENSOR, REMOVING AND INSTALLING
    • Component location, see Fig 7
21. E -  Clutch Position Sensor -G476-
    • Only for vehicles with manual transmission
    • Component location, see Fig 7
22. F -  Oil Pressure Switch -F22-
    • Component location, see Fig 12
    • Checking, removing and installing, refer to OIL PRESSURE SWITCH -F22-, REMOVING AND INSTALLING
23. G -  Reduced Oil Pressure Switch -F378-
    • Component location, see Fig 13

• In the left E-box in the engine compartment.

Removing and installing, refer to Fuel Pump Control Module -J538-, REMOVING AND INSTALLING

A - Engine component power supply relay -J757-

B - Starter relay -J53- (black/purple socket color)

B - Relay 2 for starter -J695- (black/blue socket color)

C - Secondary air injection (AIR) pump relay -J299-

D - Motronic engine control module (ECM) power supply relay -J271-

E - Coolant circulation pump relay -J151- (brown/blue socket color)

E - Brake booster relay -J569- (brown/purple socket color)

Refer to appropriate SYSTEM WIRING DIAGRAM

2 - Electrical harness connector

1 - Brake Light Switch -F- and Brake Pedal Switch -F47-

2 - Integrated functionalities: clutch pedal starter interlock switch -F194- and clutch pedal switch -F36-

1. Camshaft position (CMP) sensor 3 -G300-
2. Exhaust camshaft adjustment valve 1 -N318-
3. Camshaft adjustment valve 1 -N205- (camshaft adjuster B, cylinder 1)
4. Camshaft adjustment actuator 6 -F371- (camshaft adjuster B, cylinder 3)
5. Camshaft adjustment actuator 5 -F370- (camshaft adjuster A, cylinder 3)
6. Camshaft adjustment actuator 4 -F369- (camshaft adjuster B, cylinder 2)
7. Camshaft adjustment actuator 3 -F368- (camshaft adjuster A, cylinder 2)
8. Camshaft adjustment actuator 2 -F367- (camshaft adjuster B, cylinder 1)
9. Camshaft adjustment actuator 1 -F366- (camshaft adjuster A, cylinder 1)
10. Camshaft position sensor -G40-

1. Camshaft position (CMP) sensor 2 -G163-
2. Camshaft adjustment actuator 7 -F372- (camshaft adjuster A, cylinder 4)
3. Camshaft adjustment actuator 8 -F373- (camshaft adjuster B, cylinder 4)
4. Camshaft adjustment actuator 9 -F374- (camshaft adjuster A, cylinder 5)
5. Camshaft adjustment actuator 10 -F375- (camshaft adjuster B, cylinder 5)
6. Camshaft adjustment actuator 11 -F376- (camshaft adjuster A, cylinder 6)
7. Camshaft adjustment actuator 12 -F377- (camshaft adjuster B, cylinder 6)
8. Camshaft adjustment valve 2 -N208-
9. Exhaust camshaft adjustment valve 2 -N319-
10. Camshaft position (CMP) sensor 4 -G301-

1. Cylinder 1 Fuel Injector -N30-
2. Cylinder 2 Fuel Injector -N31-
3. Cylinder 3 Fuel Injector -N32-
4. Knock Sensor (KS) 1 -G61-

1. Cylinder 6 fuel injector -N84-
2. Cylinder 5 fuel injector -N83-
3. Cylinder 4 fuel injector -N33-
4. Fuel pressure sensor -G247-
5. Knock sensor (KS) 2 -G66-

1. Engine coolant temperature (ECT) sensor -G62-
2. Intake manifold tuning (IMT) valve -N156-
3. Intake manifold tuning (IMT) valve position sensor -G513-

1. Low fuel pressure sensor -G410-
2. Fuel metering valve -N290-

• Bolted in the transmission from below

1 - Fuel injectors, Cylinder bank 1

2 - Throttle valve control module -J338-

3 - Knock sensor (KS) 1 -G61-

4 - Heated oxygen sensor -G39-

5 - Oxygen sensor after three way catalytic converter -G130-

1 - Knock sensor (KS) 2 -G66-

2 - Fuel injectors, cylinder bank 2 and from the fuel pressure sensor -G247-

1 - Throttle valve control module -J338-

2 - EVAP canister purge regulator valve 1 -N80-

3 - Climatronic refrigerant shut-off valve -N422- (vehicles with an auxiliary heater do not have the shut-off valve

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

1 - Oxygen sensor 2 after catalytic converter -G131-

2 - Heated oxygen sensor (HO2S) 2 -G108-

3 - Fuel injectors, cylinder bank 2 and from the fuel pressure sensor -G247-

4 - Knock sensor (KS) 2 -G66-

1 - Heated oxygen sensor -G39-

2 - Oxygen sensor after three way catalytic converter -G130-

1 - Heated oxygen sensor (HO2S) 2 -G108-

2 - Oxygen sensor 2 after catalytic converter -G131-