2006 Mercedes SL-Class Owner's Manual - Page 119

Controls in detail Seats Switching on rapid seat heating Press upper switch position 2. Both red indicator lamps on the switch come on. Switching off rapid seat heating Press upper switch position 2 again. Vehicles with seat ventilation* The switch is located on the door. The red indicator lamps on the switch indicate the selected heating level: Level off 1 2 No indicator lamp on One indicator lamp on Two indicator lamps on i If one or both of the lamps on 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 seat heating will switch back on again automatically as soon as sufficient voltage is available. i The system switches to normal heating mode after approximately 5 minutes. Only the right-hand indicator lamp remains lit. 1 Seat heating switch Switch on the ignition ( page 36). 118