FixVault

63 12... Headlight fogging fault pattern

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2016 BMW 328i xDrive, 2016 BMW 328d xDrive, 2015 BMW 328i xDrive, 2015 BMW 328d xDrive, and 2014 BMW 328i xDrive. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Certain weather conditions can lead to fogging on the inside of the headlight lens.
This is not necessarily a fault that requires replacement of the headlight.
Fig 1: Locating Headlight Fogging Pattern
G08505839Courtesy of BMW OF NORTH AMERICA, INC.

Top row (A): Permissible fogging. Headlight does not need to be replaced. 

Bottom row (B): Impermissible fogging. Replace the headlight.