With the way the Auto headlights work with the car shut off I never really get to see what the headlights look like on from the front. The other day I left the car running to get something at the front of the car and was surprised at how much of a color tint difference exists between the headlights and the DRLs. It immediately reminded me of the occasional cheaply optioned MB you will see with pure white DRLs and yellow halogen headlights (amazing you can still buy a premium car without xenons!). Anyway, not a good look at all IMO.
Now there is nothing wrong with the light as to how it looks from the drivers seat. Looks white enough but definitely a bit more yellow tinted compared to my other car with xenons (RR).
So I set out to see if there was a bulb replacement that would give me a bit more of a "pure white" look. Stock bulbs are 4300k which was the best compromise between color and brightness. I definitely did not want to go 6000k+ and have blue headlights or sacrifice too many lumens. My internet research brought me to Osram CBI bulbs. Most higher kelvin bulbs use a coating on a 4300k bulb to filter out the more yellow tones for a whiter/bluer tint at the sacrifice of lumens. Osram somehow figured out a way to make the bulb have up to 5500k without a coating and most importantly without sacrificing lumens. Sweet!
I ordered 2 bulbs off amazon for about $95 a piece. They arrived in one day and I went to work on the swap.
Much to my surprise the stock bulb was also made by Osram! Sweet!
Stock bulb on left and new bulb on right.
There are many guides on headlight removal so I won't go into that. Once the headlight is out, just unscrew the bulb cover plate (the piece with the warning sticker - 4 screws) and you will have access to the bulb.
Next you just squeeze the metal clip holding the bulb in and rotate it away. There is one plug to the bulb that you pull out and the bulb should come right out.
That's it. About as easy as swapping to LED side markers. Here are some comparison photos after swapping the drivers side bulb. Pictures are from an IPhone 6 so their color rendition is limited but I think it serves the purpose for comparisons sake.
The shots from far away make it look like my old headlight is yellow which it is not. Just not a pure white that the new bulb grants. Goal achieved!