Remove the air inlet hose.
Holding the fuel filter with a wrench, unscrew the hollow bolt (1), then remove the high pressure hose.
After unscrewing the nut of the fuel supply line, disconnect the fuel line and remove the fuel filter.
When installing the fuel filter, install new gaskets.
After installing the fuel filter, check the fuel system for leaks.
Apply battery voltage to the fuel pump connector until it works.
Check the tightness of the pressurized fuel system.