Hi haydn I had a problem with my locks mine is a X type but it could be the same .???? It started with the drivers door not locking with the fob I had to lock and unlock it with the key not always but it was anoying.??? I took it to the small garage I use-- its a one man garage but he's good and this is what he did==== Opened the drivers window then put the key in the ignition and turned it on then holding the inside drivers door handle he locked and unlocked the door with the small lever just above the inside door handle you could hear all the locks going in and out so he then squirted WD 40 useing the small red pipe right into the inside door handle and also the door lock itself then worked the small lever a few times again .??? He did say to me if it keeps doing it I will need a new drivers door lock ---Ive used the car about 10 times since and its done it once so fingers X. Frank