2008 Mercedes S-Class Owner's Manual - Page 474
2008 Mercedes S-Class Manual
Page 474 highlights
Controls in detail Automatic climate control Adjustments Depending on vehicle production date, you can adjust the air volume and the temperature when the front defroster is switched on. The air flow will remain on the windshield and door windows. Press button Q up or down to increase or decrease air volume to the desired level. The air volume increases/decreases to the next higher/lower blower speed and heating switches to the temperature that was set before the front defroster was switched on. The indicator lamp on button ; goes out. or Press temperature control %$ 2 and/or a ( page 469) upward or downward. Heating switches to the temperature that was set before the front defroster was switched on. The indicator lamp on button ; goes out. Rear window defroster Activating Switch on the ignition ( page 344). Press button < ( page 469) up or down. The indicator lamp on the button comes on. i The air conditioning compressor remains on even with the indicator lamp on button ; goes out. This helps to prevent windshield from fogging. Deactivating Press button ; ( page 469) up or down. The indicator lamp on the button goes out. The previous settings are once again in effect, except air recirculation mode stays off. Windshield fogged on the outside Switch the windshield wipers on ( page 381). Press button U ( page 469) up or down. The indicator lamp on the button comes on. ! The rear window defroster uses a large amount of power. To keep battery drain to a minimum, switch off the defroster as soon as the rear window is clear. Deactivating Press button < ( page 469) up or down. The indicator lamp on the button goes out. i The defroster is automatically deactivated after some time of operation depending on the outside temperature. 473