2005 Mercedes S-Class Owner's Manual - Page 128

Controls in detail Seats Vehicles with seat ventilation* The switch is located on the door. The red indicator lamps on the switch show the heating level selected: Level off 1 2 No indicator lamp on One indicator lamp on Two indicator lamps on Switching on seat heating Press switch 1 twice. A red indicator lamp above the switch comes on. Switching off seat heating Press switch 1 again. Switching off rapid seat heating mode Press switch 1 twice. ! 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 seat heating will be automatically switched off after approximately 30 minutes. Switching on rapid seat heating Press switch 1 once. Both indicator lamps above the switch come on. i 1 Seat heating switch Switch on ignition. The system switches over to normal heating mode after approximately five minutes. Only the right-hand indicator lamp remains lit. 126