Trim element assembly comprising clipped carrier member and second member element, and associated assembling methods

Trim element assembly comprising a carrier member and a second member element, the second member element being adapted to be clipped to the carrier member, the carrier member comprising a first surface, the first surface delimiting an opening and being provided with a first protrusion, the first protrusion comprising at least one hook portion at one end of the first protrusion, the second member element comprising a main portion and a second protrusion, the second protrusion comprising at least one first branch, at least one second branch and at least one bottom, the at least one first branch, the at least one bottom and the at least one second branch forming together a U-shape, the first protrusion cooperating with the second protrusion when the second member element and the carrier member are clipped together, such that the first protrusion extends between the at least one first branch and the at least one second branch along a longitudinal direction, the at least one bottom extends in regard to the first protrusion along a transversal direction, limiting the movement of the second member in the transversal direction, and the hook portion is arranged in regard to the second member element in the transversal direction in the opposite direction, limiting the movement of the second member in this opposite transversal direction.