Hey guys, figured ask here:
I have a 2004 525i the headlights covers were cracked due to road driving over time and
i went and bought a pair of used headlights from a 2005 545i, when I installed the headlights they worked great the first hour, only the low beams, after a couple hours none of the lights turn on, everything is connected and the computer is sending me the light failure message, could it be that they're not compatible? the 525i are non xenon but the 545i are xenon. Thanks for the help guys!