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 => [ Fuel Injectors ] Fuel Injectors

3 - Support Ring

4 - Fuel Rail

• Removing and installing, refer to => [ Intake Manifold with Fuel Rail ] Intake Manifold With 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 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 (N80)

10 - Throttle Valve Control Module (J338), Throttle Drive for Electronic Power Control (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 (J623) see vehicle diagnosis and service system (VAS 5052) "Guided Function".

11 - Intake Air Temperature Sensor 2 (G299)

• 5 Nm

12 - Intake Manifold Bolts

• 9 Nm

13 - Intake Manifold

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