2008 Mercedes R-Class Owner's Manual - Page 239

Controls in detail 3-zone automatic climate control* Adjusting air distribution Use the air distribution controls 3 or 5 to adjust the air distribution for the rear passenger compartment. The symbols on the controls represent the following functions: Symbol vents Function Adjusting automatically Press button U. The indicator lamp on the button comes on. The air distribution is adjusted automatically. Setting the temperature Increasing the temperature Turn temperature control a ( page 236) slightly clockwise. The rear automatic climate control will correspondingly adjust the interior air temperature for the rear passenger compartment. Decreasing the temperature Turn temperature control a ( page 236) slightly counterclockwise. The rear automatic climate control will correspondingly adjust the interior air temperature for the rear passenger compartment. Z Directs air to the center air Y Directs air to the footwells and the side air vents Adjusting manually Press the desired air distribution control. The indicator lamp on button U goes out. Use temperature control a ( page 236) to separately adjust the air temperature of the rear passenger compartment. You should raise or lower the temperature setting in small increments, preferably starting at 72°F (22°C). The automatic climate control will adjust to the set temperature as fast as possible. i The rear automatic climate control will not cool the air when the air conditioning is switched off ( page 234). 238