Fuel Rail Assembly Overview

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

• Removing and installing, refer to => [ Teflon Combustion Chamber Seal ] Teflon Combustion Chamber Seal

3 - Support Ring

4 - Fuel Rail

• Removing and installing, refer to => [ Fuel Rail ] Fuel Rail

5 - Fuel Pressure Sensor (G247)

• 22 Nm

• Tighten connections to 30 Nm

6 - Low Fuel Pressure Sensor (G410)

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 approximately 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, releasing fuel pressure, refer to => [ Before Opening High Pressure Fuel Injection System ] Service and Repair

• Do not install fuel lines with tension

• Removing and installing, refer to => [ High Pressure Pump ] High Pressure Pump

9 - EVAP Canister Purge Regulator Valve 1 (N80)

10 - Throttle Valve Control Module (J338), EPC throttle drive (G186),

• EPC throttle drive angle sensor 1 (G187) and EPC throttle drive angle sensor 2 (G188)

• After the replacing the throttle valve control module (J338), it must be adapted to the engine control module (J623) (basic setting, display group 60) see vehicle diagnosis and service system (VAS 5052 A) guided functions.

• Removing and installing, refer to => [ Throttle Valve Control Module ] Throttle Valve Control Module

11 - Intake Air Temperature Sensor (G42)

• 5 Nm

12 - Bolts for Intake Manifold

• 9 Nm

13 - Intake Manifold

• Removing and installing, refer to => [ Intake Manifold with Fuel Rail ] Intake Manifold With Fuel Rail