63 12... Headlight fogging fault pattern
WARNING: This page is about a different car, the 2010 BMW 550i, 2009 BMW 550i, and 2008 BMW 550i. 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.
(A): Permissible fogging. Headlight does not need to be replaced.
(B): Impermissible fogging. Replace the headlight.