2005 Mercedes SL-Class Owner's Manual - Page 193

Controls in detail Automatic climate control Deactivating the automatic climate control system Reactivating There are several ways to reactivate the automatic climate control system: Press any button on the automatic climate control panel ( page 183). The indicator lamp on button M switches off. or Turn one of the control knobs on the automatic climate control. The indicator lamp on button M switches off. Air conditioning The air conditioning is operational while the engine is running and cools the interior air to the temperature set by the operator. i This setting is only recommended when the retractable hardtop is open. Deactivating It is possible to completely deactivate the automatic climate control system. Press button M ( page 183). The indicator lamp on button M comes on. i Condensation may drip out from underneath the vehicle. This is normal and not an indication of a malfunction. Deactivating It is possible to deactivate the air conditioning (cooling) function of the automatic climate control system. The air in the vehicle will then no longer be cooled or dehumidified. Press ± button ( page 183). The indicator lamp on the ± button comes on. 191