A device for the at least partial fastening of a vehicle lamp to a vehicle, wherein vehicle lamp and vehicle each form a counterpart of the other, the device comprising: - an expansion sleeve, which is arrangeable in a reception at a counterpart, - a clamping cone, which is received by expansion of the expansion sleeve so as to be movable along a longitudinal axis in the expansion sleeve, and - a fastening means, which is fixable to the other counterpart, and which, by being actuated, acts upon a position of the clamping cone along the longitudinal axis in a distance-variable manner, wherein the expansion sleeve in its unexpanded state is received in the reception so as to float at least in the direction along the longitudinal axis, and wherein the expansion sleeve in its expanded state is fixed in the reception in its then assumed position along the longitudinal axis and wherein the expansion sleeve is first brought into abutment on the counterpart by the fastening means being actuated to act upon the position of the clamping cone in a distance-reducing manner, and the clamping cone subsequently expands the expansion sleeve, characterised in that the expansion sleeve in its unexpanded state is received in the reception so as to additionally float in the direction of a displacement axis extending orthogonal to the longitudinal axis, and, under action of the clamping cone by the fastening means being actuated in a distance-reducing manner, the expansion sleeve expands in the direction of an expansion axis standing both orthogonal on the longitudinal axis and orthogonal on the displacement axis. wherein vehicle lamp and vehicle each form a counterpart of the other, the device comprising: - an expansion sleeve, which is arrangeable in a reception at a counterpart, - a clamping cone, which is received by expansion of the expansion sleeve so as to be movable along a longitudinal axis in the expansion sleeve, and - a fastening means, which is fixable to the other counterpart, and which, by being actuated, acts upon a position of the clamping cone along the longitudinal axis in a distance-variable manner, - an expansion sleeve, which is arrangeable in a reception at a counterpart, - a clamping cone, which is received by expansion of the expansion sleeve so as to be movable along a longitudinal axis in the expansion sleeve, and - a fastening means, which is fixable to the other counterpart, and which, by being actuated, acts upon a position of the clamping cone along the longitudinal axis in a distance-variable manner, wherein the expansion sleeve in its unexpanded state is received in the reception so as to float at least in the direction along the longitudinal axis, and wherein the expansion sleeve in its expanded state is fixed in the reception in its then assumed position along the longitudinal axis and wherein the expansion sleeve is first brought into abutment on the counterpart by the fastening means being actuated to act upon the position of the clamping cone in a distance-reducing manner, and the clamping cone subsequently expands the expansion sleeve, characterised in that the expansion sleeve in its unexpanded state is received in the reception so as to additionally float in the direction of a displacement axis extending orthogonal to the longitudinal axis, and, under action of the clamping cone by the fastening means being actuated in a distance-reducing manner, the expansion sleeve expands in the direction of an expansion axis standing both orthogonal on the longitudinal axis and orthogonal on the displacement axis.