I am new to BMW. I bought a 2007 328 xi for my kid. Not sure what the code is, if it is a E90 or what. The headlights were not working when we bought it. I replaced the xenon bulbs and still nothing. So I have now replaced both of the ballast. When the car is in the acc position the lights come on fine. Once you start the vehicle and turn the lights on they flicker very fast like a police car. I am not very mechanically or electrically inclined. Please help if you may know how to or have had a similar problem. Thanks
It is e90 indeed if it is 4 door or e92 if it is a coupe.
Did you replace ballasts with original BMW parts or aftermarket?
Also, are there any aftermarket LED bulbs installed anywhere in the car?
Last edited by Mless5; 10-24-2018 at 02:06 PM.
They were aftermarket ballast. But I made the mistake of ordering the wrong ones. So I reordered the right ones but they are aftermarket.
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And no there are no other aftermarket LED’s in the car
BMW require the canbus ballast, was that the issue?
No I don’t believe it is the ballast. The lights work fine when the vehicle is NOT running. Once you start the vehicle is when they start strobing.
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