2008 Mercedes R-Class Owner's Manual - Page 237

Controls in detail 3-zone automatic climate control* Rear automatic climate control (second row) The control panel is located at the rear of the front center console. 1 Increasing air volume 2 Air distribution and air volume (automatic, manual) 3 Air distribution (directs air through the side air vents) 4 Right rear center air vent, adjustable 5 Air distribution (directs air through the footwells and side air vents) 6 Rear automatic climate control on/off 7 Decreasing air volume 8 Left rear center air vent, adjustable 9 Indicator lamps for air volume settings a Temperature control Activating rear automatic climate control i The automatic climate control must be switched on ( page 226). Press button U. The indicator lamp on the button comes on. The temperature, air volume, and air distribution are adjusted automatically. Deactivating rear automatic climate control Press button ´. The indicator lamp on the button goes out. The cooling function switches off after a short delay. i The stored values for the rear automatic climate control are erased from memory after the ignition has been switched off for more than 30 minutes. Once the front automatic climate control is switched on again, the rear automatic climate control operates in automatic mode at a preset temperature of 72°F (22°C). i Switch off the rear automatic climate control for improved cooling or heating output in the front passenger compartment. You can also switch off the rear automatic climate control from the front passenger compartment ( page 237). Rear automatic climate control panel 236