I have searched this sight and cannot find any info on the location of my in cabin air filter for a 1998 XJR. I have looked under the plastic cowling at the bottom of the windshield on the passenger side, and only find a plastic grate.

 

I do not know about the XJ* but the XK* series had very few cabin filters fitted on US cars. Perhaps none.

 

Appreciate the note. I think you are right about cabin filters in the XJR. There doesn't seem to be one on my '98.

 

none on the 98-03 xj8/R. 04+ does have them
some early xk had them but were removed and sealed up

 

There are a couple of foam filters underneath driver and pasenger front seats ( 1 each) at the floor level. This is all I could find. One must look for them from the rear compartment.

 

As I know, if the car fitted with filters, those are under the cover at the bottom of the windshield. You have to remove the wiper arm, and the little screws of the dark grey plastic cover. If you removed this cover you will see (or not) the filters.