Component Locations Overview
Component Location Overview
Components A through O are not depicted in exploded view illustration.
1 - Mass air flow (MAF) sensor (G70)
• =>
2 - Heated Oxygen Sensor (HO2S) (G39) and Oxygen Sensor (O2S) Heater (Z19 )
3 - Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) (G130) and Oxygen Sensor (O2S) Heater 1 (behind Three Way Catalytic Converter (TWC)) ( Z29)
• => [ Oxygen sensors ]
4 - Engine coolant temperature (ECT) sensor (G62)
• =>
5 - Camshaft Adjustment Valve 1 (N205)
• => [ and ]
6 - Fuel Pressure Regulator Valve (N276)
• => [ and ]
7 - Single piston high pressure pump
8 - Low Fuel Pressure Sensor ( G410)
• 15 Nm
9 - Intake Flap Motor (V157) with Intake Manifold Runner Position Sensor (G336 )
10 - Engine Speed (RPM) Sensor ( G28)
• => [ Electrical harness connectors ]
11 - 6-pin harness connector Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) (G130) and Oxygen Sensor (O2S) Heater 1 (behind Three Way Catalytic Converter (TWC)) (Z29) (brown connector)
12 - 6-pin harness connector
• For Heated Oxygen Sensor (HO2S) (G39) and Oxygen Sensor (O2S) Heater (Z19) (black) => [ Electrical harness connectors ]
13 - Evaporative Emission (EVAP) Canister Purge Solenoid Valve 1 (N80)
14 - Engine Control Module (ECM) (J623)
• Removing and installing, refer to => Fuel Delivery and Air Induction Fuel Delivery and Air Induction
15 - Charge Air Pressure Sensor (G31)
• =>
16 - Throttle Valve Control Module (J338), Throttle Drive (for Electronic Power Control (EPC)) (G186),
• Throttle Drive Angle Sensor 1 (for Electronic Power Control (EPC)) (G187) and Throttle Drive Angle Sensor 2 (for Electronic Power Control (EPC)) (G188)
• After replacing Throttle Valve Control Module ( J338), it must be adapted to Engine Control Module (ECM) (J623) again (basic setting, display group 60) see " Guided Fault Finding"
• =>
17 - Intake Air Temperature (IAT) Sensor (G42)
• =>
18 - Fuel Pressure Sensor (G247 )
• => [ , (torque specification 15 Nm) ]
19 - Camshaft Position (CMP) Sensor (G40)
• =>
20 - Ignition coils with power output stages
• 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 cylinder head using Ignition Coil Puller (T40039)
• Removing and installing, refer to => Ignition System Ignition System
21 - Turbocharger Recalculating Valve (N249)
• Installed directly on turbocharger => [ Components on turbocharger ]
22 - Wastegate Bypass Regulator Valve (N75)
• Installed directly on turbocharger => [ Components on turbocharger ]
A - Data Link connector (DLC)
• In knee bolster on driver's side
B - Fuel Pump (FP) Control Module (J538)
• =>
C - "EPC" indicator lamp
• In instrument cluster
D - Exhaust Malfunction Indicator Lamp " MIL"
• In instrument cluster
E - 8-pin harness connector for fuel injectors
• => [ Component locations beneath intake manifold ]
F - Connector
• For Camshaft Position (CMP) Sensor (G40) and Fuel Pressure Sensor (G247)
• => [ Component locations beneath intake manifold ]
G - Brake Light Switch ( F) and Brake Pedal Switch (F63)
• => [ Installed location and , ]
H - Throttle position (TP) sensor (G79) and Accelerator Pedal Position Sensor 2 (G185)
• On accelerator pedal (both sensors are stored in one housing)
I - Clutch pedal switch (F36 )
• => [ Installed location and , ]
J - Relay and fuse carrier in E-box
• => [ Installed location in 4-socket relay carrier,
plenum chamber E-box ]
K - Coolant Fan Control (FC) control module (J293)
• Installed in left coolant fan, when facing driving direction
L - Fuel injector
• In fuel rail pipe
• Cylinder 1 Fuel Injector (N30)
• Cylinder 2 Fuel Injector (N31)
• Cylinder 3 Fuel Injector (N32)
• Cylinder 4 Fuel Injector (N33)
• Removing and installing, refer to => Fuel Delivery and Air Induction Fuel Delivery and Air Induction
Fuel injectors referred to here are high pressure fuel injectors. They inject fuel directly into the cylinder under high pressure (max. approx. 120 bar).
M - Knock Sensor (KS) I (G61 )
• For cylinder 1 and 2
• Torque specification: 20 Nm
• => [ Component locations beneath intake manifold ]
N - Knock sensor 2 (G66)
• For cylinder 3 and 4
• Torque specification: 20 Nm
• => [ Component locations beneath intake manifold ]
O - Oil Pressure Sensor (G10 )
• => [ Electrical harness connectors ]
Fuel Pressure Sensor (G247 ), - 1 - (torque specification 15 Nm)
Camshaft Position (CMP) Sensor (G40) - 1 -
Mass Air Flow (MAF) Sensor ( G70) - 1 -
Camshaft Adjustment Valve 1 (N205) - 1 - and Fuel Pressure Regulator Valve (N276) - 2 -
Intake Air Temperature (IAT) Sensor (G42) - 1 - Throttle Valve Control Module (J338) - 2 -
Fuel Pump (FP) Control Module (J538) - 1 -
Electrical harness connectors
1 Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) (G130) and Oxygen Sensor (O2S) Heater 1 (behind Three Way Catalytic Converter (TWC)) (Z29 ) (brown connector)
2 Heated Oxygen Sensor (HO2S) (G39) and Oxygen Sensor (O2S) Heater (Z19 ) (black connector)
Oxygen sensors
1 Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) (G130) and Oxygen Sensor (O2S) Heater 1 (behind Three Way Catalytic Converter (TWC)) (Z29 )
2 Heated Oxygen Sensor (HO2S) (G39) and Oxygen Sensor (O2S) Heater (Z19 )
Installed location of Engine Control Module (ECM) (J623)
Engine Coolant Temperature (ECT) Sensor (G62) - 1 -
Installed location Brake light switch (F) and Brake pedal switch (F47), Clutch pedal switch (F36)
1. Brake light switch (F), Brake pedal switch (F47)
2. Clutch pedal switch (F36)
• To ensure that they are absolutely securely seated, the switches may only be installed once.
Installed location in 4-socket relay carrier, plenum chamber E-box
1.1 Not used
1.2
2 Motronic Engine Control Module (ECM) Power Supply Relay (J271)
3 Engine Component Power Supply Relay (J757)
A
B
C
Installed location on 9-socket relay carrier in driver footwell
1 Fuel pump (FP) relay (J17 )
Electrical harness connectors
1 Oil Pressure Sensor (G10 )
2 3-pin connection (gray) for engine speed (RPM) sensor (G28)
3 Engine Speed (RPM) Sensor ( G28)
Component locations beneath intake manifold
1 Knock Sensor (KS) I (G61 )
2 Knock Sensor (KS) II (G66 )
3 Oil Pressure Sensor (G10 )
4 3-pin connection (gray) for engine speed (RPM) sensor (G28)
5 Electrical connection for Camshaft Position (CMP) Sensor (G40) and Fuel Pressure Sensor (G247)
6 8-pin harness connector for fuel injectors
Charge Air Pressure Sensor ( G31) - 1 -
Components on turbocharger
1 Turbocharger
2 Wastegate Bypass Regulator Valve (N75)
3 Turbocharger Recalculating Valve (N249)