530i auto/timmed start

[cramman]

One of the lads at work has a 530 which he has "borrowed" off his father in law.
He reckons that his father in Law has tld him, after complaining the leather was cold on a morning (must be hard, free car AND cold leather) that there is a function that can be set so the car will start it up and turn the heater on before you get in!

Is this true?

Any quick how to?