Method (MCS) for determining a cleaning strategy for cleaning a surface to be cleaned of a motor vehicle , whereby the surface to be cleaned is selected in dependence of a selected cleaning mode , whereby a sensor is operatively connected to the surface to be cleaned, whereby the sensor exhibits an actual availability , whereby the cleaning strategy exhibits a control quantity setpoint defining a cleaning process for the surface to be cleaned, exhibiting the following steps: - Preferably check (MCSS1) the actual cleaning mode ; - Select (MCSSS2) the at least one sensor required for the currently selected cleaning mode ; - Check (MCSS3) the actual availability of each selected sensor ; - Determine (MCSS5) the control quantity setpoint for resource efficient, preferably resource-saving, cleaning of each surface to be cleaned operatively connected to each selected sensor by applying a method (MORR) for optimizing a resource requirement for a cleaning process of a surface of a motor vehicle ; and - Preferably store the determined control quantity setpoint for resource efficient, preferably resource-saving, cleaning of each surface to be cleaned operatively connected to each selected sensor , particularly preferably store the determined control quantity setpoint in the cleaning strategy, preferably within a database and/or an electronic evaluation and data processing unit and/or an electronic control unit . whereby the surface to be cleaned is selected in dependence of a selected cleaning mode , whereby a sensor is operatively connected to the surface to be cleaned, whereby the sensor exhibits an actual availability , whereby the cleaning strategy exhibits a control quantity setpoint defining a cleaning process for the surface to be cleaned, exhibiting the following steps: - Preferably check (MCSS1) the actual cleaning mode ; - Select (MCSSS2) the at least one sensor required for the currently selected cleaning mode ; - Check (MCSS3) the actual availability of each selected sensor ; - Determine (MCSS5) the control quantity setpoint for resource efficient, preferably resource-saving, cleaning of each surface to be cleaned operatively connected to each selected sensor by applying a method (MORR) for optimizing a resource requirement for a cleaning process of a surface of a motor vehicle ; and - Preferably store the determined control quantity setpoint for resource efficient, preferably resource-saving, cleaning of each surface to be cleaned operatively connected to each selected sensor , particularly preferably store the determined control quantity setpoint in the cleaning strategy, preferably within a database and/or an electronic evaluation and data processing unit and/or an electronic control unit . - Preferably check (MCSS1) the actual cleaning mode ; - Select (MCSSS2) the at least one sensor required for the currently selected cleaning mode ; - Check (MCSS3) the actual availability of each selected sensor ; - Determine (MCSS5) the control quantity setpoint for resource efficient, preferably resource-saving, cleaning of each surface to be cleaned operatively connected to each selected sensor by applying a method (MORR) for optimizing a resource requirement for a cleaning process of a surface of a motor vehicle ; and - Preferably store the determined control quantity setpoint for resource efficient, preferably resource-saving, cleaning of each surface to be cleaned operatively connected to each selected sensor , particularly preferably store the determined control quantity setpoint in the cleaning strategy, preferably within a database and/or an electronic evaluation and data processing unit and/or an electronic control unit . <EOS>