High Pressure Pump

High Pressure Pump

Removing

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

• Before opening high pressure components of the fuel injection system, pressure must be relieved to residual pressure.

- Reduce fuel pressure in high pressure area => [ Releasing Fuel Pressure on High Pressure Side ] Service Precautions.

- Free up coolant hoses at left of intake manifold.

- Loosen bolt - 1 - and remove bolt - 2 -.





- Remove left small coolant pipe from intake manifold.

• Coolant hoses - arrows - remain connected.

- Disconnect electrical connectors - 1 - and - 4 -.





- Disconnect fuel lines - 2 - and - 3 -.

- Remove bolts - arrows -.

- Pull coolant hoses and small left coolant pipe slightly to left and remove high pressure pump.

Installing

• Tightening specifications => [ High Pressure Pump, Assembly Overview ] High Pressure Pump, Assembly Overview.

Installation is in reverse order of removal, note the following:

• Replace O-ring.

- Check plunger => [ (Item 3) Roller tappet ] High Pressure Pump, Assembly Overview for damage, replace if necessary.

- Coat plunger - 1 - with oil and insert correctly with guide - 2 - in cylinder head.





- Rotate crankshaft in direction of engine rotation at vibration damper bolt while pressing plunger into cylinder head until it reaches the deepest point - arrow -.

- Install small left coolant pipe.