open the drivers door,kneel down,lean into the car and touch the clutch pedal then move your hand over to the plastic center console trim panel and it`s behind this,very carefully pull the trim towards you, it will argue but be gentle as they can crack. when it`s off use a torch and look again at the heater beside the pedals you will see a black trim panel about 2cm wide and 20cm tall this unclips and there is the filter,it pulls out ok but new one will not go in easily. Have fun!!!!!