IQ 3rd door lock problem

[mighty_bat]

Hi.

I have a problem with the trunk door. When I close them the sensor does not recognize that they are closed and the red light on the speedometer shows that the door is still open and does not allow me to lock the door. Does anyone know what the problem is? In the mechanism itself or in the external lock? Does anyone know where the switch is that should recognize that the door is closed?

Thanks

[flash22]

There will be a switch in the lock mechanism, try cleaning and re-lube (not WD40)