When you find your BMW E46 OEM xenon headlight assembly can light on, but the light output become terrible and very poor, a lot of friends will determine the problem is located at the xenon bulb. After they change with new bulb, they will find the effect still not ideal. Some of them change the bulb to be high color temperature like 6000K or 8000K （If you use aftermarket bulb, because the parameter is not match well with original ballast, after time went, it will easy to make the original ballast fail. Then because of choosing cheap aftermarket bulb, and make the ballast failed in short time, you will cost a lot of more money to buy original OEM parts. Also this will waste time and energy too. ）But finally still can not improve the light output.

Some friends maybe know xenon headlight a little, they will try to change the xenon ignitor or ballast. Because they think maybe because of the output voltage not enough makes the light output become dim. But finally still can not solve the problem.

Now let me explain with you why your type of car have this kind of problem.

The BMW 3 Series E46 headlights of these cars were built by two different headlight manufacturers. One manufacturer is AL Bosch , also known as AL (Automotive Lighting). The other is the Austrian manufacturer ZKW. The latter manufacturer, ZKW, has produced projectors bowls from plastic material. Unfortunately, it appears that this plastic is not able to stand the heat of the D2S xenon bulb, causing the reflective layer to disappear. The result is a light output that decreases so dramatically that finally the headlights will be rejected at the yearly inspection. Unfortunately, ZKW never made new bowls available, and the only option was to buy a new set of headlights.

There are a lot of BMW E46 car owners emails us and tell us they have the same problem. Last few years, I ever got some good condition reflect bowl for them.

But along with time flies, now to find good condition OEM ZKW bixenon projector is very hard at this moment.. Even if we can get, it will have some degree burned too. And your OEM projector’s reflect bowl is made of plastic, even if you now get a good one to replace, after a period, it will be burned out too. It have drawback when they come out.

With the information collected from clients’ emails, we think over a method which can solve this problem 100%. Change off the original projector, use a much better quality projector to swap it, you can check our pictures.

You only need to take out the original burnt out projector; swap with the projectors we supply you and fix them well is ok.

This headlight repair kit has become the most popular way to fix old toasted E46 ZKW headlights. Don't spend buy used ones that will undoubtedly have the same issue or bother spending thousands with the dealership. For the few hours in the garage you'll spend doing the install, your car light output will be totally recover, and will be even better than your original new car’s output.