I have a golf tdi 5 door with remote central locking. i locked the car, and when i tried to open it later the passenger door remained locked and it still wount open do you have any ideas ??

There is a few things to check: First check to see that the wiring connection has not fallen off, check to see that the rod has not fallen off. If needed check power to wiring with voltmeter and check relay with ohmmeter.

You will need to remove all the screws to the door panel, remove lock and window controls, and then pry panel with big flat-head screwdriver directly next to the plastic studs and pry panel off. Don't forget about screw and plate next to mirror. Then you will have access to the inside off door and the components