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Hi, opening the roof should not be complicated. If the roof won't open there may be a fault in the roof system. The first thing that you should do is to check the luggage partition in the trunk and make sure that it is pulled down and into position.
The trunk lid must be closed and the key must be turned to the 2nd click or the car can be running.
Open the lid on the center console and pull back on the roof switch. The roof should open as you hold back on the switch.
At the same time you should get a message in the instrument display that reads "Vario-Roof in Operation".
If you have followed the procedure and the roof doesn't open you will need to get the car back to the dealer for a diagnosis of the vario roof system.
Let me know if you need further assistance.
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