A movement of a vehicle is detected, using tire sensors, by evaluating detected, measured signals in an evaluating unit in such a manner, that the polarity of the measured signals, starting from the measured signals at vehicle standstill, is used as an indicator of the vehicle moving direction. The hinge is characterized in that said accommodation or said head has a projecting boss confined in a gap of said head or said accommodation, said gap having at least two consecutive distinct spaces that define a travelling path for said boss. A method for metering reducing agent and a motor vehicle having a metering unit are also provided. and a storage elastic modulus of 1. The apparatus may be applied to, for example, an image display apparatus which displays server images for providing a variety of items and information.