Component Locations Overview
Component Locations
Components A through R are not depicted in the 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
4 - Engine Coolant Temperature (ECT) Sensor G62
5 - Camshaft Adjustment Valve 1 N205
6 - Fuel Pressure Regulator Valve N276
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
- The intake manifold runner position sensor G336 must be adapted to the engine control module J623 using diagnosis and service system VAS 5052 after removing or replacing the fuel rail.
10 - Engine speed (RPM) sensor G28
11 - 6-pin harness connector
- For Heated Oxygen Sensor (HO2S) G39 and Oxygen Sensor (O2S) Heater Z19 (black).
12 - 6-pin harness connector
- Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) G130 and Oxygen Sensor (O2S) 1 (behind Three Way Catalytic Converter (TWC) Heater Z29 (brown connector).
13 - Evaporative Emission (EVAP) Canister Purge Regulator Valve N80
14 - Engine Control Module J623
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 the Throttle Valve Control Module J338 , it must be adapted to the Engine Control Module (ECM) J623 (basic setting, display group 60) see Guided Functions
17 - Intake Air Temperature (IAT) Sensor G42
18 - Fuel Pressure Sensor G247
- 22 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
21 - Turbocharger Recirculating Valve N249
- Installed directly on turbocharger.
22 - Wastegate Bypass Regulator Valve N75
- Installed directly on turbocharger.
A - Data Link Connector (DLC)
- In knee bolster on drivers side
B - Fuel Pump (FP) Control Module J538
- If the Fuel Pump (FP) Control Module J538 or fuel pump is replaced, an adaptation must be performed "Initiate basic setting" display group 103
- Check Fuel Pump (FP) Control Module J538.
C - "EPC" Indicator lamp
- In instrument cluster
D - Emission Malfunction Indicator Lamp "MIL"
- In instrument cluster
E - 8-pin harness connector for fuel injectors
F - Connector
- For Camshaft Position (CMP) Sensor G40 and Fuel Pressure Sensor G247
G - Brake Light Switch F and Brake Pedal Switch F63
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
J - Relay and fuse carrier in 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 line
- Cylinder 1 Fuel Injector N30
- Cylinder 2 Fuel Injector N31
- Cylinder 3 Fuel Injector N32
- Cylinder 4 Fuel Injector N33
Fuel injectors referred to here are high pressure fuel injectors. They inject fuel directly into the cylinder under high pressure (max. approximately 120 bar).
M - Knock Sensor (KS) I G61
- For cylinder 1 and 2
- Tightening Specifications: 20 Nm
N - Knock sensor 2 G66
- For cylinder 3 and 4
- Tightening Specifications: 20 Nm
O - Oil pressure switch F1
- Checking, removing and installing.
P - Oil Level Thermal Sensor G266
Q - Leak detection pump (LDP) V144
- Only installed on engine code BPG
R - Left Electro-Hydraulic Engine Mount Solenoid Valve N144
- Only installed on vehicles with automatic transmission
Fuel Pressure Sensor G247 - 1 - (tightening specifications 22 Nm)
- Tightening specifications of the connection is "30 Nm" , and must be checked before installing the Fuel Pressure Sensor G247.
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 -
- If the Fuel Pump (FP) Control Module J538 or fuel pump is replaced, an adaptation must be performed "Initiate basic setting" display group 103
- Check Fuel Pump (FP) Control Module J538.
Electrical harness connectors
1 - Heated Oxygen Sensor (HO2S) G39 and Oxygen Sensor (O2S) Heater Z19 (black connector)
2 - 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)
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 / Brake Pedal Switch F47 , Clutch Pedal Switch F36
1. Brake light switch F , Brake pedal switch F47
2. Clutch pedal switch F36
NOTE: 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 - Starting Interlock Relay J207
2 - Motronic Engine Control Module (ECM) Power Supply Relay J271
3 - Engine Component Power Supply Relay J757
Installed location on 9-socket relay carrier in driver footwell
Arrow - Fuel Pump (FP) Relay J17
Electrical harness connectors
1 - Oil Pressure Switch F1
2 - 3-pin connector (gray) for Engine Speed (RPM) Sensor G28
3 - Engine Speed (RPM) Sensor G28
Component locations beneath intake manifold
1 - Knock Sensor (KS) 1 G61
2 - Knock Sensor (KS) 2 G66
3 - Oil Pressure Switch F1 in oil filter bracket
4 - 3-pin connector (gray) for Engine Speed (RPM) Sensor G28
5 - Electrical connector 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 -
- O-ring, replace
- Tighten to 5 Nm
Oil Level Thermal Sensor G266
Components on turbocharger
1 - Turbocharger
2 - Tighten Wastegate Bypass Regulator Valve N75 to 3 Nm.
3 - Tighten Turbocharger Recirculating Valve N249 to 7 Nm (observe installed location, next illustration)
Observe installed location of Turbocharger Recirculating Valve N249