I recently pulled the door panels off my rear doors. The cappping actually came off first without any effort. I successfully glued them back into position easily. The original glue had hardened and was no longer adhesive making the job very easy. You should be able to get them off fairly easily but be aware that the vynil that coats the armrest/door panel etc folds under the top capping and may come away. Good luck
Cheers
Wingman
'89 525i/A Exec 193000kms
'94 Subaru Liberty AWD Wagon
Looking for Merc 300TE
NSW, Australia