High Pressure Pump Overview

High Pressure Pump Overview






1 Low Fuel Pressure Sensor (G410)

• 15 Nm

2 Seal

• Replace

3 Bolt

• Tighten by hand in a diagonal sequence and then tighten to 5 Nm

• Final tightening specification: 20 Nm

• Do not tilt the high pressure pump

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 Fuel Line

• 27 Nm

Do not let fuel come into contact with skin.

• The fuel pressure must be reduced to residual pressure before opening the high pressure area of the fuel injection system. Refer to => [ Releasing Pressure in High Pressure Area ] Releasing Pressure In High Pressure Area.

• 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.

8 Gasket

• 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

• Lubricate O-rings with clean engine oil before installing

13 Protective Plate

• For high pressure line

14 Nut

• 9 Nm

15 Double Bolt

• 9 Nm

16 Roller Tappet

• Can be installed in one position only

• Lubricate O-rings with clean engine oil before installing

17 O-ring

• Replace

• Lubricate O-rings with clean engine oil before installing