Two problems related to fog light switch have been reported for the 2003 BMW 325. The most recently reported issues are listed below.
The contact owns a 2003 BMW 325ci. While operating the vehicle, smoke was present under the hood. Upon inspection, it was discovered that the smoke was coming from the fog lights. The contact later discovered that the fog lights, signal lights, high beams, and passenger side brake light were not operating. The cause of the failure was not diagnosed. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 120,000.
Driving at night has become impossible with out risk. The zkw xenon headlights have become so dim that the fog lights now provide more illumination. The problem has been traced to burned/discolored plastic reflector bowls on both sides with the passenger side being slightly worse. After research it appears this problem is wide spread in zkw headlights. There are several reports here and it appears BMW also realized the problem and had zkw switch to metal reflector bowls on newer models yet offer no solution other than buy complete headlight assembly's to the tune of $1200 a side. Might a possible recall motivate BMW to at least offer the individual part. I understand the vehicle is almost 13 years old but to treat a blatant safety issue like this is ridiculous. Nhtsa please help solve this safety related problem.