2009 Mercedes SL-Class Owner's Manual - Page 95

Controls in detail Seats If one or more of the indicator lamps in the seat ventilation switch 1 are flashing, there is insufficient voltage available since too many electrical consumers are turned on. The seat ventilation switches off automatically. The seat ventilation will switch back on again automatically as soon as sufficient voltage is available. The red indicator lamps in the switch come on to show which heating level you have selected. The seat heating switches from level 2 (rapid seat heating) to level 1 (normal seat heating) after approximately 5 minutes. The seat heating automatically switches off after approximately 30 minutes. X Switch on the ignition. X The seat heating will switch back on again automatically as soon as sufficient voltage is available. Vehicles with seat ventilation Seat heating The seat heating will switch back on again automatically as soon as sufficient voltage is available. Switching on seat heating: Press lower switch position 2. A red indicator lamp in the switch comes on. Switching off seat heating: Press lower switch position 2 once more. Switching on rapid seat heating: Press upper switch position 1. Both red indicator lamps in the switch come on. Switching off rapid seat heating: Press upper switch position 1 once more. Vehicles without seat ventilation X X 1 Seat heating switch X 1 Rapid heating 2 Normal heating If one or both of the indicator lamps in the seat heating switch are flashing, there is insufficient voltage available since too many electrical consumers are turned on. The seat heating switches off automatically. The red indicator lamps in the switch come on to show which heating level you have selected. The seat heating switches from level 2 (rapid seat heating) to level 1 (normal seat heating) after approximately 8 minutes. The seat heating automatically switches off after approximately 30 minutes. Z 93