Newbie questions: PDC and auto wiper

[slojo]

I have had my X5 for about a week now and can't figure out 2 things:

1) How do I get the front PDC to work automatically when I pull into a spot or my garage? I pull in at a slow speed and it doesn't come on. It only work when I put the car in reverse and then in drive or if I keep hitting the button. This is rediculous it should work at low speeds in automatically.

2) How do I get the automatic windshield wiper button to stay on all the time or do I have to hit it every time I turn the car on again?