Method for determining a cleaning strategy for cleaning a surface (20, 22, 24, 26, 28) to be cleaned of a motor vehicle, whereby the surface (20, 22, 24, 26, 28) to be cleaned is selected in dependence of a selected cleaning mode, whereby a sensor (50, 52, 54, 56, 56a, 56b, 58) is operatively connected to the surface (20, 22, 24, 26, 28) to be cleaned, whereby the sensor (50, 52, 54, 56, 56a, 56b, 58) exhibits an actual availability, whereby the cleaning strategy exhibits a control quantity (110, 111, 112, 113, 114, 115, 116, 117, 118, 119) setpoint defining a cleaning process (30, 32, 34, 36, 38, 40) for the surface (20, 22, 24, 26, 28) to be cleaned, exhibiting the following steps: - Preferably check (MCSS1) the actual cleaning mode; - Select (MCSSS2) the at least one sensor (50, 52, 54, 56, 56a, 56b, 58) required for the currently selected cleaning mode; - Check (MCSS3) the actual availability of each selected sensor (50, 52, 54, 56, 56a, 56b, 58); - Determine (MCSS5) the control quantity (110, 111, 112, 113, 114, 115, 116, 117, 118, 119) setpoint for resource efficient, preferably resource-saving, cleaning of each surface (20, 22, 24, 26, 28) to be cleaned operatively connected to each selected sensor (50, 52, 54, 56, 56a, 56b, 58) by applying a method (MORR) for optimizing a resource requirement (30d, 32d, 34d, 36d, 38d, 40d) for a cleaning process (30, 32, 34, 36, 38, 40) of a surface (20, 22, 24, 26, 28) of a motor vehicle; and - Preferably store the determined control quantity (110, 111, 112, 113, 114, 115, 116, 117, 118, 119) setpoint for resource efficient, preferably resource-saving, cleaning of each surface (20, 22, 24, 26, 28) to be cleaned operatively connected to each selected sensor (50, 52, 54, 56, 56a, 56b, 58), particularly preferably store the determined control quantity (110, 111, 112, 113, 114, 115, 116, 117, 118, 119) 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 (20, 22, 24, 26, 28) to be cleaned is selected in dependence of a selected cleaning mode, whereby a sensor (50, 52, 54, 56, 56a, 56b, 58) is operatively connected to the surface (20, 22, 24, 26, 28) to be cleaned, whereby the sensor (50, 52, 54, 56, 56a, 56b, 58) exhibits an actual availability, whereby the cleaning strategy exhibits a control quantity (110, 111, 112, 113, 114, 115, 116, 117, 118, 119) setpoint defining a cleaning process (30, 32, 34, 36, 38, 40) for the surface (20, 22, 24, 26, 28) to be cleaned, exhibiting the following steps: - Preferably check (MCSS1) the actual cleaning mode; - Select (MCSSS2) the at least one sensor (50, 52, 54, 56, 56a, 56b, 58) required for the currently selected cleaning mode; - Check (MCSS3) the actual availability of each selected sensor (50, 52, 54, 56, 56a, 56b, 58); - Determine (MCSS5) the control quantity (110, 111, 112, 113, 114, 115, 116, 117, 118, 119) setpoint for resource efficient, preferably resource-saving, cleaning of each surface (20, 22, 24, 26, 28) to be cleaned operatively connected to each selected sensor (50, 52, 54, 56, 56a, 56b, 58) by applying a method (MORR) for optimizing a resource requirement (30d, 32d, 34d, 36d, 38d, 40d) for a cleaning process (30, 32, 34, 36, 38, 40) of a surface (20, 22, 24, 26, 28) of a motor vehicle; and - Preferably store the determined control quantity (110, 111, 112, 113, 114, 115, 116, 117, 118, 119) setpoint for resource efficient, preferably resource-saving, cleaning of each surface (20, 22, 24, 26, 28) to be cleaned operatively connected to each selected sensor (50, 52, 54, 56, 56a, 56b, 58), particularly preferably store the determined control quantity (110, 111, 112, 113, 114, 115, 116, 117, 118, 119) 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 (50, 52, 54, 56, 56a, 56b, 58) required for the currently selected cleaning mode; - Check (MCSS3) the actual availability of each selected sensor (50, 52, 54, 56, 56a, 56b, 58); - Determine (MCSS5) the control quantity (110, 111, 112, 113, 114, 115, 116, 117, 118, 119) setpoint for resource efficient, preferably resource-saving, cleaning of each surface (20, 22, 24, 26, 28) to be cleaned operatively connected to each selected sensor (50, 52, 54, 56, 56a, 56b, 58) by applying a method (MORR) for optimizing a resource requirement (30d, 32d, 34d, 36d, 38d, 40d) for a cleaning process (30, 32, 34, 36, 38, 40) of a surface (20, 22, 24, 26, 28) of a motor vehicle; and - Preferably store the determined control quantity (110, 111, 112, 113, 114, 115, 116, 117, 118, 119) setpoint for resource efficient, preferably resource-saving, cleaning of each surface (20, 22, 24, 26, 28) to be cleaned operatively connected to each selected sensor (50, 52, 54, 56, 56a, 56b, 58), particularly preferably store the determined control quantity (110, 111, 112, 113, 114, 115, 116, 117, 118, 119) setpoint in the cleaning strategy, preferably within a database and/or an electronic evaluation and data processing unit and/or an electronic control unit.