How do i change the fuel filter on a diesel citroen zx please ?

citroen zx 1.9 diesel how to change the filter please thanks How do i change the fuel filter on a diesel citroen zx please ?
Several types eg roto,cav or bosch If its the screw on type just remove old filter get new filter and fill it to the top with fresh diesel screw it back on and fire up the engine no need to bleed this type.If its paper element undo the filter housing remove old filter clean out filter housing fit new filter undo small 8mm bleed screw and either squeeze priming bulb or press lift pump primer button till fuel with no air bubbles comes out of bleeder lock up bleed screw and fire engine.Always make sure rubber O rings are fully seated or next time you start the car you will have to bleed it again as fuel will run back in to the tank and system will pull in air.

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