u/Emotional_Art_99

I've got some (minor?) problems with my Berlingo Multispace (2002) in the central locksystem. If I lock it, sometimes it unlocks by itself. Not that long ago, it only did it when one of the side doors was opened, and now it does it at random (without opening any doors).

Does anyone have a similar or the same problem? I would hope to het some tips and tricks, maybe even the golden ticket/solution.