THe panel has two small swivels at the rear, that have to be rotaded down. A feeler guage a smsll spatula etc. run it down the back of the panel. when re-installing pivot them back out, the front is held by a spring (leaf)
The door check section will help
http://www.peachparts.com/Wikka/W140DoorCheck

I tried that and it worked just fine. Thanks very much.Michael