Abstract: An apparatus for influencing an automatic transmission has a man-machine-interface, which is connected to a transmission controller for selecting a transmission ratio of the automatic transmission connected to an internal combustion engine, and a monitoring device for monitoring at least one operating parameter that is relevant to the wear of the internal combustion engine, wherein a threshold value of the operating parameter and a desired rotation speed range of the internal combustion engine that depends on the threshold value can be selected via the man-machine-interface, and wherein the transmission controller selects a transmission ratio on the basis of the monitoring device, by which an actual rotation speed of the internal combustion engine is adjusted within the desired rotation speed range. A method for influencing an automatic transmission is also described.