I haven't owned an E93, but I know that the F33 requires Comfort Access to be able to open
and close the top. Even then, you need to be almost right next to the car for it to work.
I briefly considered the SmartTop (
http://www.cabrioconnect.co.za/BMW 3 series E93.html) module for the F33, but decided against it in the end. It adds a couple of features, besides being able to remotely open and close the roof, such as one touch operation, extended remote operation range and it increases the top speed at which the roof can be operated.
I mainly decided against it due to warranty/MP concerns.