[Raman335i]

Got a left lowbeam malfunction, assuming its just the bulb that needs to be replaced. Anyone had this happen before? Do I need to replace both sides at the same time or is just one side ok?

Can someone confirm that this is the correct bulb to get?

I have an '08 E90 with Xenon headlights.

[andybui82]

your best bet...is to look.

[andybui82]

and you can replace one but it will be diff colors due to temp. and usage.

[danielfastv6]

Might be your bulb but it could very well be the headlight ballast

[jonnylin1]

I would just replace both at the same time I I was you. As Andy said, the difference in age/use will show through difference in color (tho minor) but who knows if the other one is about to go out too or not.

[Raman335i]

Originally Posted by danielfastv6

Might be your bulb but it could very well be the headlight ballast

That's what I saw when I did a search too, hopefully that's not the case!

Originally Posted by jonnylin1

I would just replace both at the same time I I was you. As Andy said, the difference in age/use will show through difference in color (tho minor) but who knows if the other one is about to go out too or not.

Yeah, I think I'm going to just go ahead and get two bulbs, hopefully its just the bulb... :P