Can't do a 225/35R19 but do have options. If you are looking for a tire in that size on a BMW then do not go for the run flat option. The reinforced sidewalls on the tire plus the BMW stiff suspensions makes for terrible ride comfort.
Probably go for a Bridgestone Potenza but please double check the tread depths if the vehicle is 4WD/AWD as the difference may cause a transmission issue. If it's 2WD again, depending on tread depths and the difference between the pair on the axle it may be worth replacing the pair. Also please consider the tread pattern on the tire as this can have an affect as well.