If U've had the keys cut there, it should be done 2 free. It litterally takes them 30 seconds. I just had one done last week cuz i lost my spare and ordered a new one. I picked it up Friday it was turning ignition on but wouldn't open or close the doors. I went back monday and they did it while I was sitting in the car. I honestly wasn't paying attention (sorry) but it was a matter of seconds turning the ignition on and off.
Go talk to your service advisor.

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X5 4.4
E46 M3 Vert