My 2003 TLC does not have the doors for the air filters.
I just opened it all up to fix the leaking panel from the evap coil that drips into the foot well. I vacuumed it out (not much there), and cleaned the coil with coil cleaner from the local hardware store. Used a can an a half, multiple washings and vacuuming.
I might have added the filters, but honestly, if you keep debris out of the intake in front of the windscreen (that keeps it from being ingested into the system) and clean the evap coil every few of years, it's not a big deal. You can also access the coil by removing the blower motor, and spray cleaner in from that direction, which is actually a more direct angle.
I just opened it all up to fix the leaking panel from the evap coil that drips into the foot well. I vacuumed it out (not much there), and cleaned the coil with coil cleaner from the local hardware store. Used a can an a half, multiple washings and vacuuming.
I might have added the filters, but honestly, if you keep debris out of the intake in front of the windscreen (that keeps it from being ingested into the system) and clean the evap coil every few of years, it's not a big deal. You can also access the coil by removing the blower motor, and spray cleaner in from that direction, which is actually a more direct angle.