Fuel Rail: Locations

Fuel Rail, Assembly Overview







1 - Radial adjustment
- Replace if damaged
2 - Fuel injector
- With combustion chamber seal (Teflon seal), always replace
- Replace O-Rings
- Note correct installation position
3 - Support ring
4 - Fuel rail
5 - Fuel Pressure Sensor G247
- 22 Nm
- Tighten connections to 30 Nm
6 - Low Fuel Pressure Sensor G410
- 15 Nm
7 - Fuel Pressure Regulator Valve N276
8 - Mechanical single-piston high-pressure pump
- With Fuel Pressure Regulator Valve N276 and Low Fuel Pressure Sensor G410
- An electrical fuel pump, located in the fuel tank, supplies fuel to the mechanical high-pressure pump at a pressure of approx. 6 bar.
- When installing the high-pressure pump, make sure that no dirt enters the fuel system.
- The fuel system must be pressureless to install the high-pressure pump, release the fuel pressure.
- Do not install fuel lines with tension
9 - Evaporative Emission (EVAP) Canister Purge Regulator Valve N80
10 - Throttle Valve Control Module J338, Throttle Drive (for Electronic Power Control (EPC)) G186
- With 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 again (basic setting, display group 60) see "Guided Fault Finding"
11 - Intake Air Temperature (IAT) Sensor 2 G299
- Tighten to 5 Nm
12 - Bolts for intake manifold
- 9 Nm
13 - Intake manifold