Parked car then locked door could not remove key driver side.
(remote central locking not worked for some time).
Had to call the AA to assist took him 10 mins to get key out with some wd40 and pliers, now can't open door from outside or inside, use the latch inside to open door, plunger goes up but still can't open the door.
In short how I change the door lock as i can't open door.