Right passenger door not locking

[Kevinnovia]

Hi

Just bought a megane, got it home to find that the right passenger door won't lock when locking button is pressed on keyfob.All the other doors lock.it's a Y reg 1.4

Any ideas on what could be the problem & could I fix it
myself?

Kevin

[Kevinnovia]

My car door is now jammed shut,there was a little screw next to the child lock button.I turned it,shut the door & it locked.is it more likely to be the solenoids & when replacing do they need to be programed\calabirated to the car

any advice would be really helpful