Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Component Locations, overview (vehicles with engine code BEW)
The following components are not depicted in the component locations overview:
Throttle Position (TP) Sensor -G79- and Sender -2- for accelerator pedal position -G185-*
- In footwell, at accelerator pedal
- Checking. Refer to Throttle Position (TP) sensor, checking
The following components are displayed in the Component location overview:
1 - Intake manifold flap
- With Motor for intake flap -V157-*,checking. Refer to Motor for intake flap, checking
2 - EGR Vacuum Regulator Solenoid Valve -N18-*
- Checking. Refer to EGR Vacuum Regulator Solenoid Valve, checking
3 - Intake Manifold Runner Control (IMRC) Valve -N316-
4 - Exhaust Gas Recirculation (EGR) Cooler Switch-over Valve -N345-*
- Checking. Refer to Exhaust Gas Recirculation (EGR) Cooler Switch-over Valve, checking
5 - Wastegate Bypass Regulator Valve -N75-*
- Checking. Refer to Wastegate bypass regulator valve, checking
6 - Diesel Direct Fuel Injection (DFI) Engine Control Module (ECM) -J248-*
- Checking voltage supply. Refer to Voltage supply for Diesel-Direct Fuel Injection System, checking
- Replace. Refer to Control module for Diesel-Direct Fuel Injection System, replacing
7 - Positive Crankcase Ventilation (PCV) Heating Element -N79-
8 - Engine Coolant Temperature (ECT) Sensor -G62-*
- For control module for Diesel-Direct Fuel Injection System
- with Engine Coolant Temperature (ECT) Sensor -G2-
- If necessary, release pressure in cooling system before removing
- Checking. Refer to Engine Coolant Temperature (ECT) sensor, checking
9 - Mass Air Flow (MAF) Sensor -G70-*
- Checking. Refer to Mass Air Flow (MAF) sensor, checking
10 - Harness connector
- For Valve for pump/injector, cylinder 1 -N240- to Valve for pump/injector, cylinder 4 -N243-
11 - Engine Speed (RPM) Sensor -G28-*
- Checking. Refer to Sender for fuel gauge, checking
12 - Fuel Temperature Sensor -G81-*
- Checking. Refer to Fuel Temperature Sensor, checking
13 - Harness connector
- For Camshaft Position (CMP) Sensor -G40-
14 - Harness connector
- For Engine Speed (RPM) Sensor -G28-
15 - Camshaft Position (CMP) Sensor -G40-
- For camshaft position
16 - Charge Air Pressure Sensor -G31-* with Intake Air Temperature (IAT) Sensor -G42-*
- Checking Charge Air Pressure Sensor. Refer to Charge air pressure sensor, checking
- Check Intake Air Temperature (IAT) sensor. Refer to Intake Air Temperature (IAT) sensor, checking
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.