Contradictory requirements like a quick heat up of the compartment vs. a quick heat up of the engine (especially in cars with fuel efficient engines) show that there is a need for a highly sophisticated climate control system to optimize the operation points. This could be done by a suitable system and a close interaction between the control systems for climate, engine and coolant management. Additionally we can improve the climate control system to a comfort management system by using sensors for air velocity and humidity. With today's technology we can build up a calculation model to determine a comfort-factor for the occupants and use this factor for the climate control instead of only using the compartment temperature as controlled variable.