For the 1999 model-year, the Jaguar XJ8 came standard with an air conditioning filtration system. This system includes a cabin air filter, which captures pollen, dust and spores before they enter your Jaguar through the air vents. The air filtration system works best if the cabin air filter is replaced every 10,000 miles or 12 months, whichever comes first. The filter is located beneath the engine compartment cowl cover. Removal of the windshield wiper arms is necessary to remove the cover.
Turn the engine off. Open the bonnet to access the bolts that secure the windshield wiper arms.
Remove the bolts with a socket wrench. Lift the windshield wiper arms up and away from the engine compartment cowl cover.
Remove the five Phillips head screws from the engine compartment cowl cover. Grasp the cowl cover and lift it away from the compartment.
Locate the cabin air filter compartment on the passenger cowl, near the strut tower. Push down the two clips on the side of the compartment. Grasp the top of the filter and lift it out.
Insert the new filter with the arrows pointing toward the windshield. Push up the two side clips to secure the filter. Replace the engine compartment cowl cover and tighten the five screws.
Reinsert the end of the windshield wiper arms on the posts. Tighten the two bolts to secure the windshield wiper arms.