Couple of 2001 XG-300 problems, please help

The climate control temperature knob just stopped working. I thought I felt it bind momentarily then start moving freeling again. After that though the
temperature control did not seem to work right at all. I could at first adjust the knob somewhat and get heat out of it. Now it is very difficult to get the temperature knob to respond at all. Could it be the Rheostat that controls the temperature selection.
Also have been getting a musty smell in the car recently. I have never changed the cabin filter in the car could that be the problem? Also how do you change the cabin filter?
thanks in advance for any help you can give. David
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Hi, David. I cannot recall whether the XG manual controls are cable operated. You may need to poke your head under the dash and look around.
There's a really nice TSB on www.hmaservice.com about how to replace the cabin air filter. It's in the air box behind the glove box. If you go to look up the TSB, it'll be number 03-97-002.
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