Using the SmartKey

the The SmartKey must be close to the driver's door handle.

the driver's door handle. Point the tip of the SmartKey at the driver's door handle.
button until the side windows and Press and hold the the sliding sunroof or the panorama roof with power tilt/sliding panel are fully button until the side windows and the sliding sunroof or the panorama roof with power tilt/sliding panel are fully closed.
and the sliding sunroof or panorama roof with power tilt/sliding panel are Make sure that all the side windows and the sliding sunroof or panorama roof with power tilt/sliding panel are closed.

On vehicles with a panorama roof with power tilt/sliding panel:
button again until the roller Press and hold the sunblinds of the panorama roof with power tilt/sliding panel close. button again until the roller sunblinds of the panorama roof with power tilt/sliding panel close.
closing: release the  button. To interrupt convenience closing: release the Using KEYLESS-GO button.

    See also:

    2011 Mercedes-Benz S-Class Review
    Even as BMW, Audi and Jaguar throw new cars into the luxury-flagship ring, Mercedes-Benz has kept its S-Class sedan competitive, with sedans that start below $90,000 and top out at more than double ...

    Stowage compartments in the front
    Glove box Depending on the vehicle's equipment, you will find the following installed in the glove box: an audio and video AUX jack, a USB socket or Media Interface, a universal interface fo ...

    Refrigerant of the air-conditioningsystem
    The air-conditioning system is filled with R134a refrigerant and a special PAG lubricant. Never use refrigerant R 12 (CFC) or mineral lubricants. Otherwise, you could damage the air-condition ...