2001 renault megane dynamic back door jammed shut?

Rather than blindly ripping door card off, I tried what both you and "Rupert" could have done - a quick internet search.

Pretty quickly I found it is a common problem, with lots of sites and forums mentioning it.

I THINK you may have the kiddie lock turned on, on that door.

Read the first few posts here:
.
https://www.renaultforums.co.uk/threads/2002-megane-rear-doors-wont-open.100396/

And a few posts here

https://www.meganeownersclub.co.uk/forum/viewtopic.php?t=21856

More, from YouTube:

https://m.youtube.com/watch?v=k55qRna7918

https://m.youtube.com/watch?v=BOhtiCnfOS0

Loads more out there for those prepared to look

Fghhdds
January 2020

First try getting someone to push hard or shoulder the door from the inside whilst you open door handle from the outside and then same again whilst trying the inside door latch. If this does not work, I would suggest that you have a mechanical failure of the lock mechanism. I've no experience to offer on your particular car, but repair would involve removing the door card (internal door trim) to expose the varoius rods and levers inside the door shell. This will be difficult with the door closed but should be possible eventually. The worse case could involve destruction of the door card and need a replacement sourcing from eBay!

Rupert
January 2020