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:

    Selecting a destination from the destination memory (e.g. My address)
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    Safety, Reliability & Mileage
    Because the E-Class has been redesigned, we don't yet have predicted reliability ratings for this model. Furthermore, the 2010 E-Class hasn't yet been crash-tested by our preferred source, the Ins ...