High Pressure Pump Overview

High Pressure Pump Overview






1 Accessory Bracket

• Removing and installing, refer to => [ Accessory Bracket ] Service and Repair.

2 Bolt

• 20 Nm + an additional 180° (1/2) turn.

• Always replace.

3 Hub

• Use the camshaft gear counter-holder (T10051) to loosen and tighten.

• Use the puller (T40064) to remove.

4 High Pressure Pump Toothed Belt Gear

5 Bolt

• 20 Nm

• Always replace.

6 Nut

• 95 Nm

7 Bolt

• 20 Nm + an additional 45° (1/8) turn.

• Always replace.

8 High Pressure Pump

• With the fuel metering valve (N290) not opened.

• After replacing, the fuel tank must be filled (never run dry), refer to => [ Fuel System, Filling and Bleeding ] Fuel System, Filling and Bleeding.

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

9 Fuel Supply Hose

10 Fuel Return Hose

11 High Pressure Line

• 28 Nm

• Between the high pressure pump and the fuel rail (high pressure reservoir).

• Do not interchange.

• When reusing the high pressure line again, pay attention to the cylinder marks.

• The high pressure line can be reused only after the following checks:

• Check the sealing cone on the high pressure line for deformation and cracks.

• The bores for the line must not be deformed, narrowed or damaged.

• Do not reuse a corroded line again.

• Install without tension.