I sold my x3 awhile back because I was going to sell the car. Never happened so I still have a bunch of tunes on my laptop. Any idea if tunes that I used with my x3 will work with the x4? I would assume so but figured I would ask.
I'm pretty sure they have to have the SCT's serial number written into them. I don't think they'll load into the device otherwise. I'm sure your tuner would do this for no charge though.