Hi all, hoping someone can help with my 2014 W204 C63 estate. Auto door locking is switched on via the OBC in the instrument panel, car auto locks as I drive off but doesn't unlock at the end of the journey when I put it in P, apply the parking brake and switch the engine off. It worked fine until today. Hoping it can be sorted without a trip to the dealer although I do have MB warranty if it comes to it. Thanks in advance. Just to clarify I'm referring to the locking as you drive off rather than keyless entry/exit.