Nothing complicated, if you have access to unscrew the filter on the car, you normally unscrew it and screw in a new one. If you have a pump in the tank, you turn the ignition a dozen times to pump the fuel into the filter, start the car and it's ready. Worse, when there is no access to do it on the car, then you have to unscrew the base to which the filter is screwed in, disconnect the cubes from the sensors, remove the fuel hoses (mark where it was) and do it on the table. If there is no pump in the tank, you will need a computer and software venting.
