Closing device for an opening in a body of a vehicle, method of manufacturing and correspondig vehicle.

The device has a plane frame (11) made of plastic material with a peripheral zone, whose edges are envisaged to coincide with those of a bay arranged in the body of a vehicle in order to be stuck on a portion by light reinforcement in the body to level with the body. An encapsulation (31) that overlaps the frame and a fixed glass (12) inside the vehicle is realized in a plane defined by the frame and the fixed glass. Independent claims are also included for the following: (A) a method to fabricate a bay closing device (B) a motor vehicle comprising a bay closing device.