Locking Problem

[Chris2490]

Hi,

Purchased my car back in June problem is the locks, when I come to lock it, it automatically unlocks it self. On the rare occasion when I do actually get the car to lock up it wont unlock I have to keep turning the key before it will unlock.

Now as long as I push both handles inwards when I am inside the car the doors lock no problem.

I had an accident a few months ago as well the drivers side door couldn't be opened until I replaced it. However during this time both doors would lock and unlock okay? since replacing the door the problem has continued. I think its a problem with the drivers side door but cant be sure, any suggestions? the same thing happens when I try and lock it from the passenger side as well.

Thanks