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JTRACKER 04-29-2013 01:37 AM

D1S Replacement - Failure
I had a driver side low beam failing (purple) so bought a pair of replacement D1S bulbs.

Problem now is both sides are dead and can't see anything that would cause this failure.

Everything I'm reading suggests ballast failures, but that makes no sense that both sides would fail after bulb replacement.

Any suggestions?



DimSumE90 06-27-2013 12:36 AM

Ballast failures happen when the bulb is no good.
A quality bulb will last years with the original ballast. I have driven my car since 06' and I have changed the bulbs once till date.

98RACE 06-27-2013 04:11 PM

I had some knock off Phillips that craped out may ballast. Found a guy with a rebuilt ballast and installed that and a fresh set of Morimoto's and no issues since.

Kaotikmike 07-04-2013 05:17 PM

It's 100% your ballast I change those out atless 3 times a week do to cheap ass china bulbs if u need any ballast or work done let me know as I did over 60 E90 E91 to date meaning swapping out the ballast or retrofitting them with OEM Osram or AL ballast ;)

Kaotikmike 07-04-2013 05:18 PM

All so sell original OEM D1S Osram bulbs at a fraction of the price u would pay at the dealer

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