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      06-11-2012, 02:46 AM   #13
zeroXTC
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Drives: 320D - E90
Join Date: May 2011
Location: Denmark

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OP I have done this retrofit on 4 cars now. With original headlights and ballast.

All 4 cars had flicker problems when you startet the engine after the install.

I then coded the car my self with the XENON option, and the flicker stopped on all 4 cars. The last one we made yesterday.

So yes, you need the car to be coded, or else the flicker wont stop.

I am aware that on some cars it works without coding, that is unexplainable, but on all the E90s i have worked on, they needed coding.