[propogandapand4]

Hey so i have e91 lci with bi-xenons, one of the bulbs is dying, its purple colour at the moment so iam wondering what bulb do i need to get?? is it D1S type of connection? And also iam wondering how bixenons work? is there some kind of filter that filters light particles when you are using low beams or bixenon just starts shining brighter when you turn on high beams? thats for anwers guys

[lowrydr310]

Originally Posted by propogandapand4

Hey so i have e91 lci with bi-xenons, one of the bulbs is dying, its purple colour at the moment so iam wondering what bulb do i need to get?? is it D1S type of connection? And also iam wondering how bixenons work? is there some kind of filter that filters light particles when you are using low beams or bixenon just starts shining brighter when you turn on high beams? thats for anwers guys

D1S is the bulb type. They have integrated igniters (unlike the D2S and some other HID setups that use a separate igniter wired between the ballast and bulb, or igniter ingetrated into the ballast on some setups). If your'e doing a replacement of the bulbs, you just need the D1S bulb since it's a direct fit. If one bulb is on its way out, the other bulb isn't far behind. If still working, at the very least it's output is likely degraded. Make sure you buy the replacement bulbs from a reputable seller and a reputable brand. I don't have much experience here but I've read the OSRAM bulbs are good.

The bixenon works based on a physical shutter in the projector housing. The shutter normally blocks half of the beam keeping all light below a sharp cutoff line, then when you activate the high beam function an actuator moves the shutter out of the way to enable the full beam pattern.