2009 Mercedes CL-Class Owner's Manual - Page 311

Controls in detail Seats X X Switch on the ignition. Press and hold switch 1 in the front center console. The rear seat head restraints will place upright. Seat ventilation many electrical consumers are turned on. The seat ventilation switches off automatically. The seat ventilation will switch back on again automatically as soon as sufficient voltage is available. Placing rear seat head restraints upright manually Seat heating 1 Seat ventilation button The blue indicator lamps in the button come on to show which ventilation level you have selected. X Pull the head restraint forward until it locks into position. i The seat ventilation for the driver's seat can be activated using summer opening feature (Y page 327). X 1 Seat heating button Switch on the ignition. X Switching on: Press button 1 repeatedly until the desired ventilation level is set. X Switching off: Press button 1 repeatedly until all indicator lamps go out. If one or more of the indicator lamps in the seat ventilation button 1 are flashing, there is insufficient voltage available since too The red indicator lamps in button 1 come on to show which heating level you have selected. The seat heating switches from level 3 (high) to level 2 after approximately 5 minutes. The seat heating switches from level 2 to level 1 (low) after approximately 10 minutes. The seat heating automatically switches off from level 1 after approximately 20 minutes. Z 309