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:

    Trunk emergency release (Sedan)
    You can open the trunk lid from inside the vehicle with the emergency release button. Briefly press emergency release button 1. The trunk lid unlocks and opens. The trunk lid can be unlocked ...

    Locking and unlocking centrally
    The SmartKey centrally locks/unlocks: • the doors • the trunk lid • the fuel filler flap 1 Locks the vehicle 2 Unlocks the trunk lid 3 Unlocks the vehicle When unlocking, the turn signals ...

    Heavy and light loads
    WARNING Depressing the brake pedal constantly results in excessive and premature wear to the brake pads. It may also cause the brakes to overheat, seriously impairing their effectiveness. It ...