A method for detecting whether a motor vehicle is located within a section of a roadway, comprising the following steps: detecting roadway markings of a roadway on which the motor vehicle is located, detecting whether the motor vehicle is located within a section of the roadway, wherein the section is defined by section boundaries, and then outputting a warning if the motor vehicle is not located within the section, wherein the section boundaries are defined depending on a marking distance of the roadway markings from one another.