Two problems related to turn signal have been reported for the 2003 BMW 3 Series. The most recently reported issues are listed below.
My tail lights and turn signals work for a while then quite working. The exact same symptoms as recall #11v438000 for the same type, model and year as my car, but BMW says my vehicle is not included.
Real light assembly (turn signal, parking light brake light) malfunctions occasionally and none of the lights work thus, posing a dangerous situation when vehicle in motion, turning and especially at night. Problem has been going on for at least a year. It appears that the wire connector in the assembly is burning out thus causing a short, I have temporarily repaired the problem myself by cleaning the burned parts of the wire and reconnecting and protecting with electric tape.