Has anyone tried this? How is it done/setup?
The climate system also has a parked-car ventilation function: you can program it to keep the car cool (or warm) while you're off running errands. You can even program a particular start time.
This is by far one of my favorite options in the 135i. It was a button on center dash. Used it all the time in the winter for quick 10 min shopping spree.