Q: Where is the location and how to replace the cabin air filter on left-hand drive cars for Ford Focus?
A: The cabin air filter on left-hand drive cars is located in the passenger's side of the cowl chamber. The following photos show filter replacement on a right-hand drive model. 2005 and later models do not have a cabin air filter. Pull the windshield wiper arms away from the windshield until they lock in their vertical position. Open the hood. Using a small screwdriver if necessary, release the three retaining catches at the front of the cowl grille panel. Lift out the cowl grille panel. Release the clip at either side, and lift up the cabin filter. Pull the filter element from the housing, and discard it. Install the new filter using a reversal of the removal procedure, noting the following points: Make sure that the filter is installed with the TOP/OPEN arrow marking facing upwards. Clean the rubber seals on the filter access cover before replacing. Ensure that the filter access cover is properly seated, otherwise the cover seals will leak, allowing water into the car interior.