2002 Mercedes CLK-Class Owner's Manual - Page 130

Air recirculation This mode can be selected to temporarily reduce the entry of annoying odors or dust into the vehicle's interior. Outside air is not supplied to the vehicle's interior. To select, press O button. To cancel, press O button again. The system will automatically switch from recirculated air to fresh air • after approx. 5 minutes at outside temperatures below approx. 40°F (5°C), • after approx. 30 minutes at outside temperatures above approx. 40°F (5°C), • after approx. 5 minutes, if button S is pressed. If the windows should fog up from the inside, switch from recirculated air back to fresh air. At high outside temperatures, the system automatically engages the recirculated air mode thereby increasing the cooling capacity performance, switching to partially fresh air within 30 minutes. Residual engine heat utilization With the engine switched off, it is possible to continue heating the interior for a short while. Air volume and distribution are controlled automatically. To select: Turn electronic key in steering lock to position 1 or 0 or remove key. Press T button This function selection will not activate if the battery charge level is insufficient. To cancel: Press T button. The system will automatically shut off • if you turn electronic key in steering lock to position 2, • after approx. 30 minutes, • if the battery voltage drops. Automatic climate control Instruments and controls Operation Driving 127 Instrument cluster display Practical hints Car care Technical data Index