Help in analyzing noticeable symptoms with regard to the parking aid: Note
WARNING: This page is about a different car, the 2013 BMW X5, 2012 BMW X5, and 2011 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.
For the E87 with rear and front parking aid, Progman has a coding for the interchangeable licence plate holder that is common in Switzerland.