Well mine just broke - my son was going to judge a debate meet on Sat. and told me "the check coolant light is on". After he was done I told him to pour some water in the radiator and sure enough, it all ran out. Had it flatbeded to the BMW dealer where he was in South Bend and $596 later, I have a new expansion tank and some sort of trans thermostat that they said usually breaks and needs replacing. No skin off their nose, but another $124 our of my pocket.
I think I might pull a switch and have him drive my 2007 Pontiac Torrent, while I keep the X5 here. I can't fix it if it isn't in my gagage, and the Torrent is scads more reliable than the X.
Bill