Should you replace the headlights on your BMW? This vehicle was brought to us after another shop installed the aftermarket headlights & could not get the drivers headlight to work. After some known good part testing, we will able to isolate the problem to the cheap aftermarket parts sold online. In most cases factory RND trumps any aftermarket production parts found online. Remember to trust the professionals who are licensed to solve your problems. Anyone can change parts, Professionals back their work with a 3 year 36k mile warranty. Remember to subscribe.