Originally Posted by shivaswrath
There's a timer feature so you can set it on/off under settings
i think the timer is for fresh air. so if you left work at 5pm, you set it to let in fresh air at 455pm. it'll cool you car and such and let the outside air in. not sure if it'll change the temp. I never leave work at the same time, so i never tried it out. but when i did the PCD, they showed me that option in my 08 135i. It looked like it was the same in the f30. I'll play around with that also.
but before, you had a nice warm engine, and before you ran into the store real quick, you hit the rest button and it keeps the car nice and toasty. That way you come back and your freezing again. I'll let investigate further and inform.