Key will only turn one way in car door lock

[Rach4018]

I have KA the key works fine in all other doors and ignition but on the drivers side it won't turn to open but it will lock. the key semes ok so i guess its the lock. Are they expensive to replace? its central locking?

[monkeylovin]

I think when I had one done a few years back it cost about �15. What Ford used to do is if you take your key in, provided it is not too worn, they will get a lock and make it so that the same key fits it. Saves having a different key to open the door. Hope this helps.