High Pressure Pump Assembly Overview

High Pressure Pump Assembly Overview

• Illustration depicts left high pressure pump.





1 High Pressure Pump

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

2 Bolt

• 9 Nm

3 Seal

• Replace

4 Locking Bolt

• 10 Nm

5 High-Pressure Line

• Before opening high pressure components of the fuel injection system, pressure must be relieved to residual pressure. Refer to => [ Before Opening High Pressure Fuel Injection System ] Service and Repair.

• Then wrap a clean rag around the connection and relieve residual pressure by carefully loosening the connection.

• Observe safety precautions when disconnecting the battery.

• Before loosening, disconnect Ground (GND) cable at battery with ignition switched off

• Connectors should not show any signs of damage

• Do not change bent shape

• High pressure lines, installing => [ Hand-tighten the union nuts for the high-pressure
lines. ] Fuel Injectors

6 Fuel supply line

Observe safety precautions when disconnecting the battery.

• Before loosening, disconnect Ground (GND) cable at battery with ignition switched off

• Connectors should not show any signs of damage

• Do not change bend shape

• High pressure lines, installing => [ Hand-tighten the union nuts for the high-pressure
lines. ] Fuel Injectors

7 O-ring

• Replace

8 Roller Tappet