We have a sloping driveway. It's built this way because of it's location, so there's not much we can do about it. We parked the 5er and let the autolevel go to town, and it leveled the coach fine, ...
You may want to hop over to Lippert's site. Under Customer Service, Leveling and Suspension, and click on your product (may be one more click after that).
There's manuals, tech sheets, and installation guides there.