2007 Mercedes S-Class Owner's Manual - Page 323

Controls in detail Seats Seat heating* The buttons for seat heating are located on the respective door. The red indicator lamps on the button come on to show the heating level selected. Level 3 Three indicator lamps on (highest level) The seat heating automatically switches to level 2 after approximately 5 minutes. 2 Two indicator lamps on The seat heating automatically switches to level 1 after approximately 10 minutes. 1 One indicator lamp on (lowest level) The seat heating automatically switches off after approximately 20 minutes. off No indicator lamp on 1 Seat heating button Switch on the ignition ( page 315). Switching on: Press button 1 repeatedly until the desired heating level is set. One or more red indicator lamps on the button show the selected heating level. Switching off: Press button 1 repeatedly until all indicator lamps go out. i If one or more of the lamps on the seat heating button 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. 322