[OPRN]

Sometimes the issue is actually with the door latch mechanism. If the door handle is not visibly broken then take the door pad off, remove the latch mechanism, wash it out good with varsol, blow it dry and relube it. Work it back and forth to make sure all is ok and moving fee, lock levers and all, then reinstall it. I have fixed many "broken" VW door handles this way in the past. The lube in them attracts road dust and they gum up until the outer handle no longer has enough "oomph" to trip them open. If left long enough the door handle eventually brakes from trying to force it.
Hope this helps