Fuel System, Filling and Bleeding

Fuel System, Filling and Bleeding

Allowing the high pressure pump to run dry will destroy it.

• The high pressure pump must be filled with fuel before starting the engine for the first time. Do not allow the high pressure pump to run dry.

• When installing the high pressure pump, make sure that no dirt enters the fuel system.

• Only remove the sealing plugs right before installing the fuel lines.

• The fuel tank must be filled.

To fill the high pressure fuel pump with fuel, proceed as follows:

- Turn on the ignition.

- Connect the vehicle diagnostic tester and, depending on the software version, under Guided Functions, perform the "fuel system, bleeding" or "fuel system, filling/bleeding".

• The fuel pump is activated for 3 minutes.

- Start the engine.

- After filling the fuel system, allow the engine to run at a moderate speed for a few minutes and then turn it off.

- Check the fuel system for leaks. Refer to => [ Fuel System, Performing Leak Test ] Fuel System, Performing Leak Test.

- Check the Diagnostic Trouble Code (DTC) memory and erase, if necessary. Refer to the vehicle diagnostic tester.

- Then, perform a road test driving faster than 20 km and fully pressing the accelerator pedal at least one time. Then, check the high pressure areas for leaks again.

• If there is still air in the fuel system, the engine may switch to emergency mode during the road test. Turn off the engine and erase the DTC memory. Then continue the road test.

- Recheck the DTC memory.