Hi there, first time poster...

Problem with the drivers door on my 1.9 sx diesel. The key goes into the lock but doesnt seem to move anything when turned. The door opens and closes ok from inside and out but doesn't lock. The central locking doesn't lock it either. I tried taking off the inside trim etc but couldn't see far enough in to check. Do I have to remove the window regulator etc. to get into the lock?

Also, a couple of the exterior handles are a bit loose, can these be tightened?

Cheers, Alex