Turn your engine off and pull up the hand brake. Slide the two tightening bolts towards the center of the cabin filter flange then remove it. Take the outer extremity of the cabin filter and remove it. There are two types of cabin filter. The white ones are called pollen filters while the black ones are called activated charcoal filters. The first one helps prevent dust from entering while the second filters out both dust and gases. The choice is yours! Put the new one in place, taking care to get the right direction for the flow of air.The arrows must point to the drivers side. Put the flange back on and screw it in sliding the tightening bolts outwards. Operation completed! .