driver's side door lock broken
My car is a 94 C220 and the driver's side door lock does not work anymore. I can insert the key, but it would not turn right or left
at all. I tried forcing a little bit without success. I'm afraid to try harder.
If one lock needs to be replaced/fixed do all other locks need replacing aswell and get a new set of keys, or can they replace it with a lock that works with the old keys.
Any idea on the cost ?
Any help appreciated.