Abstract: In a method of operating a motor vehicle, a temperature is measured of a charge-air flow in flow direction of the charge air downstream of a compressor impeller of each of two turbochargers, and a difference between the temperature of the charge air downstream of the compressor impeller of one of the turbochargers and the temperature of the charge air downstream of the compressor impeller of the other one of the turbochargers is determined. The presence of a difference in the temperatures for the turbochargers is an indication that one of the turbochargers operates at a higher rotational speed so as to allow initiation of preventive measures in order to avoid damage as a result of excessive rotational speed.