The interior ventilation filter is housed in the core and enclosure of the heater and evaporator as it is found within the right side of the instrument panel (passenger side). To gain access to it, loosen the fasteners of the trim panel, and the trim panel itself, under the glove box. Then remove the ventilation filter cover fastener and push the cover towards the right till the locking tabs are clear then draw the cover down and out of the housing. Take out the filter out of the housing and place the fresh filter in the filter housing with the slots facing the right direction; i.e one slot to the left and two slots to the right so that the cover can be fitted in. Then, install the cover and force it to the driver side till it clips into place and installation is the process opposite to the process of removal. In the case of the fresh air intake filter, one should start with the engine compartment and remove the cowl panel. Removal The fresh air intake cover is unclipped on the top and then pulled outwards. When equipped, pull out the electrical connector of the fresh air sensor by disengaging the sensor retainer and pulling out the sensor. Click the fresh
Air Filter screen that holds the nuts and remove the screen. Disconnect the fresh air intake filter clips and turn the filter up and out of the intake opening making sure that the new filter is fitted in the same direction as the former. In the event of dirty filter, it can be vacuumed, but when the debris content is too high, it will have to be changed. Lastly, attach the filter in to the opening making sure that the clips on the external sides place it in place, installation being the opposite process to the removal process.