Abstract: In a system for the programming of a measuring instrument which is installed in an automotive vehicle and has a front plate and a cover glass and within which an electric circuit is arranged, openings which are aligned with each other are provided in the front plate and the cover glass. Within the region of the opening there are provided in the front plate contacts which are connected with the electric circuit. The contacts can be formed of conductive paths of a circuit board which is arranged parallel to the front plate. A plug which can be introduced into the openings has axially resilient contact tips, at the end of the plug facing the circuit board, and it is provided with a device for locking the plug within the opening in the cover glass.