Method for precise localization of a motor vehicle in its surroundings, comprising the steps of: - in a device in the motor vehicle: capturing an image sequence of the surroundings of the motor vehicle by means of at least one camera; detecting and classifying objects in the captured image sequence by means of an evaluation unit; determining object positions of the objects relative to the motor vehicle by the evaluation unit; defining a section in the surroundings, wherein the section has a predetermined size, as well as predetermined boundaries (14, 15, 16, 17); associating the detected and classified objects with the determined object positions in the defined section; identifying a traffic lane, located in the section, of the motor vehicle by the evaluation unit, wherein the traffic lane identified is described by a corridor comprising a left lane boundary and a right lane boundary, wherein the left lane boundary and the right lane boundary are each described as lane functions, and these descriptions form lane information; transmitting, by means of transmitting device, object information and the object positions of the detected and classified objects, section information relating to the defined section, lane information, and time information to a map processing device arranged outside the motor vehicle and designed as a central server; - in the map processing device: receiving the object information and the object positions, the section information, the lane information, and the time information relating to the section from the device; comparing the received section information of the section to a digital map on the basis of the object information and object positions, the section information, the traffic lane information, and the time information; identifying a corresponding section in the digital map; transmitting surroundings data, corresponding to the section, from the digital map to the device; - in the device in the motor vehicle: receiving the surroundings data from the map processing device by means of a receiving device; comparing the received surroundings data to the defined section by means of the evaluation unit; localizing the motor vehicle in the surroundings on the basis of the comparison result by means of the evaluation unit. - in a device in the motor vehicle: capturing an image sequence of the surroundings of the motor vehicle by means of at least one camera; detecting and classifying objects in the captured image sequence by means of an evaluation unit; determining object positions of the objects relative to the motor vehicle by the evaluation unit; defining a section in the surroundings, wherein the section has a predetermined size, as well as predetermined boundaries (14, 15, 16, 17); associating the detected and classified objects with the determined object positions in the defined section; identifying a traffic lane, located in the section, of the motor vehicle by the evaluation unit, wherein the traffic lane identified is described by a corridor comprising a left lane boundary and a right lane boundary, wherein the left lane boundary and the right lane boundary are each described as lane functions, and these descriptions form lane information; transmitting, by means of transmitting device, object information and the object positions of the detected and classified objects, section information relating to the defined section, lane information, and time information to a map processing device arranged outside the motor vehicle and designed as a central server; - in the map processing device: receiving the object information and the object positions, the section information, the lane information, and the time information relating to the section from the device; comparing the received section information of the section to a digital map on the basis of the object information and object positions, the section information, the traffic lane information, and the time information; identifying a corresponding section in the digital map; transmitting surroundings data, corresponding to the section, from the digital map to the device; - in the device in the motor vehicle: receiving the surroundings data from the map processing device by means of a receiving device; comparing the received surroundings data to the defined section by means of the evaluation unit; localizing the motor vehicle in the surroundings on the basis of the comparison result by means of the evaluation unit.