US Info only:
600 mile service today, my brakes are not leaking. However, the dealer confirmed to me that BMW will replace calipers if the customer requests it even if they are not leaking, perhaps on the basis that they may leak in the future. I will take this option (when it is available) because, if the new parts are Brembo or Nissin, I do not want to resell a bike without the mod. I also learned that all new bikes are are being held immediately after import by BMW and will not be released to dealers until the brake calipers have been replaced; it is deemed more efficient to do it centrally rather than distributed across the dealer network.