S 500 4MATIC (220.184) V8-5.0L (113.966) (2003)
Rear Air Conditioning Heating Mode
In heating mode, recirculated air (A) is drawn out of the vehicle interior by the blower (1) when the rear air conditioning is switched on. The
recirculated air (A) flows through the cooled evaporator (2) and is cooled down there. Then the dried and cooled air (B) is heated up through the
heated heater heat exchanger (3). The heated air (C) is led to the air outlets (4, 6) depending on the position of the air distribution flap (5). The
condensation water is led off into the atmosphere via the condensation water drain (7).