Originally Posted by ItsmeAnuj
The rear blinkers are red and not amber like the German spec vehicles. I believe you will have to change the outer taillights to achieve this. There is an interior green filter between the bulb and red lens which achieves the amber effect. An amber bulb will not blink amber behind a red lens. Not sure about fog.
Is the green filter something that can be modified or would a new Euro spec tail light be the only option? I live in Germany and have a U.S. specs 335i in order. I personally like the amber blinkers that German specs F30s have vs the red blinkers for NA models. I would like to change mine to look the same but wasn't sure if just changing the bulb would do the trick.