2005 Mercedes SLK-Class Owner's Manual - Page 180
2005 Mercedes SLK-Class Manual
Page 180 highlights
Controls in detail Climate control i When the vehicle's interior has cooled down enough, reduce the air volume and increase the air temperature to comfortable settings if desired. Residual engine heat utilization With the engine switched off, it is possible to continue to heat or ventilate the interior for up to 30 minutes, depending on the temperature setting of the climate control. Air volume and distribution are controlled automatically. This feature makes use of the residual heat produced by the engine. Activating Turn the SmartKey in the starter switch to position 1 or 0, or remove it from the starter switch. Press air condition on/off switch ° ( page 175). The indicator lamp on the air condition on/off switch ° comes on. Set the left and right temperature to your personal requirements. 180