Hi. I drive a BMW 1Series 120i.
A few weeks back I started having a problem where as I was driving along (with the doors locked due to the central locking feature) I would get a warning light pop up for a split second telling me one of my 4 doors were open. This is rubbish due to the doors being locked.

This happens now a number of times throughout any journey. It can also be any door, not just the drivers.

I then noticed another issue last weekend when I popped out to the car to get something. When I locked the car, all four doors would instantly unlock itself. I would press the lock button again and it would continue to unlock itself again. After the 4th or 5th try it would then lock.

Does anyone know what the issue is? I’ve just paid to have an actuator fitted but neither of the two issues I have are resolved. Even a technician can’t seem to find an issue.