A display device for a vehicle, the device comprising - a housing, - a display screen adapted for displaying images and mounted in the housing, and - at least one functional unit (1, 1') comprising an operating element, wherein each of the at least one functional unit (1, 1') is a switch unit, in which the operating element includes at least one actuation element (5, 5') and a switching circuit adapted to sense actuation of the at least one actuation element (5, 5'), or a communication unit, in which the operating element includes a communication device, characterized in that - each of the at least one functional unit (1, 1') is adapted to be releasably coupled to the housing and comprises - an insertion portion and an operating element support portion (4, 4'), wherein the operating element is provided and supported on the operating element support portion (4, 4'), and - a first contact arrangement provided on the insertion portion and electrically coupled to the operating element, and - the housing comprises at least one functional unit coupling arrangement, each adapted to be selectively and releasably coupled to at least one of the at least one functional unit (1, 1') and comprising - a cavity inside the housing for receiving the insertion portion of the at least one functional unit (1, 1'), - a second contact arrangement in the cavity, - a retaining means in the cavity, and - an opening in an exterior wall of the housing communicating the cavity with the exterior of the housing, - wherein the opening and the cavity are sized and arranged in such a manner that for coupling one of the at least one functional unit (1, 1') to the housing the respective insertion portion can be inserted through the opening into the cavity into a predetermined operating position in which the insertion portion is releasably retained by the retaining means such that the first contact arrangement is electrically connected to the second contact arrangement, and in which the operating element support portion (4, 4') and the operating element are positioned exterior to the housing such that the operating element is accessible for a user. - a housing, - a display screen adapted for displaying images and mounted in the housing, and - at least one functional unit (1, 1') comprising an operating element, wherein each of the at least one functional unit (1, 1') is a switch unit, in which the operating element includes at least one actuation element (5, 5') and a switching circuit adapted to sense actuation of the at least one actuation element (5, 5'), or a communication unit, in which the operating element includes a communication device, - each of the at least one functional unit (1, 1') is adapted to be releasably coupled to the housing and comprises - an insertion portion and an operating element support portion (4, 4'), wherein the operating element is provided and supported on the operating element support portion (4, 4'), and - a first contact arrangement provided on the insertion portion and electrically coupled to the operating element, and - an insertion portion and an operating element support portion (4, 4'), wherein the operating element is provided and supported on the operating element support portion (4, 4'), and - a first contact arrangement provided on the insertion portion and electrically coupled to the operating element, and - the housing comprises at least one functional unit coupling arrangement, each adapted to be selectively and releasably coupled to at least one of the at least one functional unit (1, 1') and comprising - a cavity inside the housing for receiving the insertion portion of the at least one functional unit (1, 1'), - a second contact arrangement in the cavity, - a retaining means in the cavity, and - an opening in an exterior wall of the housing communicating the cavity with the exterior of the housing, - wherein the opening and the cavity are sized and arranged in such a manner that for coupling one of the at least one functional unit (1, 1') to the housing the respective insertion portion can be inserted through the opening into the cavity into a predetermined operating position in which the insertion portion is releasably retained by the retaining means such that the first contact arrangement is electrically connected to the second contact arrangement, and in which the operating element support portion (4, 4') and the operating element are positioned exterior to the housing such that the operating element is accessible for a user. - a cavity inside the housing for receiving the insertion portion of the at least one functional unit (1, 1'), - a second contact arrangement in the cavity, - a retaining means in the cavity, and - an opening in an exterior wall of the housing communicating the cavity with the exterior of the housing, - wherein the opening and the cavity are sized and arranged in such a manner that for coupling one of the at least one functional unit (1, 1') to the housing the respective insertion portion can be inserted through the opening into the cavity into a predetermined operating position in which the insertion portion is releasably retained by the retaining means such that the first contact arrangement is electrically connected to the second contact arrangement, and in which the operating element support portion (4, 4') and the operating element are positioned exterior to the housing such that the operating element is accessible for a user.