2003 Mercedes SL-Class Owner's Manual - Page 98

Controls in detail Seats Vehicles with seat ventilation* The switch is located on the door. The red indicator lamps on the switch show the heater level selected: Seat heater off No indicator lamp on Level 1 Level 2 One indicator lamp on Two indicator lamps on Switching on the seat heater Press upper switch position 1 twice. A red indicator lamp on the switch lights up. Switching off the seat heater Press upper switch position 1 again. Switching off rapid seat heating mode Press upper switch position 1 twice. ! If one or both of the lamps on the seat heater switch are blinking, there is insufficient voltage available since too many electrical consumers are turned on. The seat heater switches off automatically. The seat heater will switch back on again automatically as soon as sufficient voltage is available. i The seat heater will be automatically switched off after approximately 30 minutes. Rapid seat heating Press upper switch position 1 once. Both indicator lamps on the switch light up. 1 Seat heater switch Make sure the ignition is switched on. All the lamps in the instrument cluster light up. i The system switches over to normal heating mode after approximately five minutes. Only the right-hand indicator lamp remains lit. 98