Setting the temperature

Different temperatures can be set for the driver's and front-passenger sides.

  • Turn the SmartKey to position 2 in the ignition lock.
  • To increase/reduce: turn controls 1 and 8 clockwise or counter-clockwise (). Only change the temperature setting in small increments. Start at 72 F (22 C).
    See also:

    Proper use
    WARNING There are various warning stickers affixed to your vehicle. Their purpose is to alert you and others to various dangers. Therefore, do not remove any warning stickers unless the sti ...

    Vehicle Overview
    Mercedes-Benz focuses largely on road-going manners with its M-Class SUV, but the G-Class is a hard-core off-road machine that comfortably seats five people. Competitors include the Hummer H2 and ...

    Cabin Quality
    If the cockpit in a Cadillac Escalade or Infiniti QX56 feels like a roomy lounge, the GL550's cabin is eminently more carlike. Don't expect massive armrests and a tall dashboard — rather, the wrap ...