2007 Mercedes C-Class Owner's Manual - Page 107

Controls in detail Seats Seat heating* Both switches for the front seats are located in the center console. The red indicator lamps in the switch come on to show heating level you have selected. Switching on seat heating Three indicator lamps on (highest level). After approximately 5 minutes, seat heating is automatically switched to level 2. 2 Two indicator lamps on. After approximately 10 minutes, seat heating is automatically switched to level 1. 1 One indicator lamp on (lowest level). After approximately 20 minutes, seat heating is automatically switched off. off No indicator lamp on. Switching off seat heating Press switch 1 repeatedly until all indicator lamps 2 go out. Press switch 1 once. Three red indicator lamps 2 in the switch come on. Continue pressing switch 1 until desired seat heating level is reached. Level 3 i If one or more of the indicator lamps 2 on the seat heating switch are flashing, there is insufficient voltage due to 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. 1 Seat heating switch 2 Indicator lamps Switch on the ignition ( page 32). 106