High Pressure Pump Overview

High Pressure Pump Overview






1 Low Fuel Pressure Sensor (G410)

• 15 Nm

2 Not Installed

3 Bolt

• Tightening specification and sequence, refer to => [ High Pressure Pump - Tightening Specification and Sequence ]

4 High Pressure Pump

• With fuel metering valve (N290)

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

• Do not disassemble

5 Threaded Connection

• 27 Nm

• Connectors should not show any signs of damage

6 Fuel Supply Hose

• Low pressure side

7 High Pressure Line

• 25 Nm

• Coat the threads on the union nut with fuel.

There is a risk of injury because the fuel is under high pressure.

• Reduce the fuel pressure down to residual pressure before opening high pressure area of the fuel injection system.

• Reduce the fuel pressure in the high pressure area. Refer to => [ Releasing Pressure in High Pressure Area ] Releasing Pressure In High Pressure Area.

• Removing and installing, refer to => [ High Pressure Line ] Service and Repair

• Do not change the shape of the line

• Check for damage before installing

8 Seal

• Replace

9 Housing

10 Camshaft Position (CMP) Sensor (G40)

• Removing and installing, refer to => [ Camshaft Position Sensor (G40)/Camshaft Position Sensor 2 (G163) ] Service and Repair

11 Bolt

• 9 Nm

12 O-ring

• Replace

13 Protective Plate

• For high pressure line

14 Nut

• 9 Nm

15 Threaded Pin

• 9 Nm

16 Roller Tappet

• Can be installed in one position only

• Coat the O-rings with clean engine oil before installing

17 O-ring

• Replace

• Coat the O-rings with clean engine oil before installing

High Pressure Pump - Tightening Specification and Sequence





- Tighten bolts in 2 stages as follows: