Hello,
Thanks to the helpful pictures and information on this and a couple of other threads, I successfully removed both of the A-pillar covers on my 2002 ML320 this past weekend, and re-glued the fabric on the covers in the spots where it was either loose, "bubbling", or had come unglued. I thought I would share the results of my efforts and the information I learned or made a note of during the process, to help others who might want to attempt this fix.
1) Both A-pillar covers were fairly easy to remove. Using my fingers, starting at the top edge of each cover and underneath the rubber gasket/seal for the front doors, I was able to pull each cover off at a point approximately 1-2 inches down from the top of each cover. The covers on my 2002 ML320 were held on at the top by one metal "mushroom"-type clip oriented perpendicular to the windshield (i.e.,facing you as you sit in the driver's or passenger's seat), and by a different type of clip that attaches to the metal part of the A-pillar at a point that is parallel to the windshield and located in the same relative location on the A-pillar as the "mushroom" clip. Each cover came off using a moderate, but firm, pulling action. First, I pulled towards me to disengage the "mushroom"-type clip, and then pulled parallel to the windshield to disengage the other clip. After pulling out the top edge and disengaging both clips on each cover, I had to pull the covers up and out to detach the bottom edges where they join the dash.
2) The fabric on both of the A-pillar covers had become loose in spots, or completely detached in others. Upon closer inspection, I determined that the fabric had come unglued from the foam backing.
3) Using Elmer's spray Craft Bond glue, I was able to re-attach the fabric to the foam backing without having the glue "bleed through" the fabric and ruin it. Following the directions on the can for achieving a permanent bond, I used the smallest amount of glue that I possibly could. DO NOT OVERSPRAY--I used 2-3 short burst sprays of 1 second each. However, I still made sure that I sprayed in each area where the fabric had become unglued. I sprayed the foam backing part only, and then attached the fabric, being sure to smooth out all wrinkles as I attached. I did not spray any glue directly on the fabric--just on the foam backing.
4) After I let the covers dry for 1 hour, I reattached them. I am very satisfied with the results.
Thanks to everyone who has previously posted on this topic! :thumbsup: