I'm trying to fix my windows and door lock on my citreon Picasso ?

Usually door liners are held in place by clips all around the edge, and screws which hold the handle(s) in place nearer the centre of the panel. I would start by carefully easing the edges off al around and watching how the liner flexes when you pull it (gently!). Usually from this you can get an idea of where the centre screws are. The manufacturers are very crafty at hiding them away.

Lauriejb
November 2017

Do a google search for "remove picasso door trim"

You can also get more info on your window regulator this way.

What are the symptoms?

Acp
August 2017