After installation

WARNING: This page is about a different car, the 2012 BMW 328i, 2011 BMW 328i, 2010 BMW 328i, and 2009 BMW 328i. However, it is still accessible from the selected car via links, so may be relevant.

Turn steering wheel in both directions to full lock. The airbag warning lamp must not light up in the process.
Carry out steering angle sensor adjustment See 6131996 CARRYING OUT STEERING ANGLE SENSOR ADJUSTMENT or 3210005 ADJUSTMENT FOR ACTIVE FRONT STEERING /adjustment for active front steering.
Check directional stability of car.