[e90335iftw]

dont wanna sound stupid but anyone know what this bulb is called? my right one is out and I need to buy one but dont want to accidently by the wrong bulb. What bulb do I need? I drive a 2008 BMW 335I Sedan (E90) with sports package, adaptive headlights.

[Dark_Knight_335]

I'm not sure about the sedan but I'm pretty sure it's the same on a coupe it's a D1S bi-xenon bulb.

It's 35 watts and approximately 4350 Kelvin

[e90335iftw]

Originally Posted by Dark_Knight_335

I'm not sure about the sedan but I'm pretty sure it's the same on a coupe it's a D1S bi-xenon bulb.

It's 35 watts and approximately 4350 Kelvin

thank you !

[Dark_Knight_335]

Sure brother- good luck! If I were you I would buy an aftermarket set- the OEM ones at the dealer cost an arm and a leg.

I also have an OEM set of gently used D1S bulbs, on the car about 6 months, but I'm on the fence about selling them.

[dinanm3atl]

It's your factory/OEM HID Bulb. Dealer will be pricey. Many options exist to replace.

[marketmaster]

Originally Posted by Dark_Knight_335

I'm not sure about the sedan but I'm pretty sure it's the same on a coupe it's a D1S bi-xenon bulb.

It's 35 watts and approximately 4350 Kelvin

the bulb isn't actually bi xenon.

These guys have a used OEM bulb for $12:

http://www.theretrofitsource.com/clo...l#.U-4Q8cV90pg

They also have new bulbs for i think $60/pair. i would always replace both at the same time as the colors and output would be different.

[Dark_Knight_335]

Originally Posted by marketmaster

the bulb isn't actually bi xenon.

These guys have a used OEM bulb for $12:

http://www.theretrofitsource.com/clo...l#.U-4Q8cV90pg

They also have new bulbs for i think $60/pair. i would always replace both at the same time as the colors and output would be different.

I imagine it would be different for the sedan- the coupe is a bi-xenon for sure.

[marketmaster]

Originally Posted by Dark_Knight_335

I imagine it would be different for the sedan- the coupe is a bi-xenon for sure.

the bulb is not bi xenon. The projector, but not the bulb.

[zero2sixtyZ]

Bi-xenon only explains that the projector will open for high beams, and remain closed for low beams. The bulb does not make a difference, as long as the size is D1S.

I highly recommend the Osram Xenarc CBI D1S bulbs at Retrofit Source. There are fakes out there, so be careful. They give a cleaner white look, while maintaining the maximum amount of lumens for visible light on the road.

[Dark_Knight_335]

Originally Posted by marketmaster

the bulb is not bi xenon. The projector, but not the bulb.

Ohhhh I see! Sorry- thank you. Nice to know!