Device for calibrating driver assistance systems in vehicles, said device comprising - a mobile calibration wall, wherein the calibration wall comprises a chassis, on which there is erected a holding frame, to which a calibration panel is fastened height-adjustably, said calibration panel having an exchangeable target calibration image, which is printed on or otherwise applied, and additionally between the chassis and the calibration panel there is fastened an adjustment beam, the longitudinal extension of which is greater than or equal to a conventional vehicle width, said adjustment beam being fastened height-adjustably to the holding frame, parallel to the plane of extension of the calibration panel, wherein the adjustment beam is provided with adjustment beam mirrors in each end region of its longitudinal extension, wherein these adjustment beam mirrors are arranged on the same side of the adjustment beam as the target calibration image, specifically in each case in the direction of a vehicle to be positioned in front of the calibration wall, - two wheel sensors, which are fastenable one to each of the two front wheels of the vehicle, wherein the wheel sensors each comprise a support rod, to which, when the support rod is correctly oriented, there are fastened from top to bottom, in each case at a distance from one another, - a preferably rectangular wheel sensor scale, with a line scale, which is fastened height-adjustably to the support rod by means of at least one further locking screw, - a two-pronged suspension device and - a laser, which is fastened height-adjustably by means of a laser locking screw. - a mobile calibration wall, wherein the calibration wall comprises a chassis, on which there is erected a holding frame, to which a calibration panel is fastened height-adjustably, said calibration panel having an exchangeable target calibration image, which is printed on or otherwise applied, and additionally between the chassis and the calibration panel there is fastened an adjustment beam, the longitudinal extension of which is greater than or equal to a conventional vehicle width, said adjustment beam being fastened height-adjustably to the holding frame, parallel to the plane of extension of the calibration panel, wherein the adjustment beam is provided with adjustment beam mirrors in each end region of its longitudinal extension, wherein these adjustment beam mirrors are arranged on the same side of the adjustment beam as the target calibration image, specifically in each case in the direction of a vehicle to be positioned in front of the calibration wall, wherein the calibration wall comprises a chassis, on which there is erected a holding frame, to which a calibration panel is fastened height-adjustably, said calibration panel having an exchangeable target calibration image, which is printed on or otherwise applied, and additionally between the chassis and the calibration panel there is fastened an adjustment beam, the longitudinal extension of which is greater than or equal to a conventional vehicle width, said adjustment beam being fastened height-adjustably to the holding frame, parallel to the plane of extension of the calibration panel, wherein the adjustment beam is provided with adjustment beam mirrors in each end region of its longitudinal extension, wherein these adjustment beam mirrors are arranged on the same side of the adjustment beam as the target calibration image, specifically in each case in the direction of a vehicle to be positioned in front of the calibration wall, - two wheel sensors, which are fastenable one to each of the two front wheels of the vehicle, wherein the wheel sensors each comprise a support rod, to which, when the support rod is correctly oriented, there are fastened from top to bottom, in each case at a distance from one another, - a preferably rectangular wheel sensor scale, with a line scale, which is fastened height-adjustably to the support rod by means of at least one further locking screw, - a two-pronged suspension device and - a laser, which is fastened height-adjustably by means of a laser locking screw.