what xenon bulbs have i got

[KevM3]

my oem xenons are sh!te , need to replace the bulbs , are they d1s or d2s in my 04 b6

 

[Ian2012]

Mine aren't great have the same age car as yours, i think they are D1S bulbs what are you going to replace them with??

 

[KevM3]

new bulbs of the same type , they diminish over the years , same thing happened with my M3 but that got d2s bulbs ,id swap the m3 bulbs over for the winter if my B6 got D2s bulbs

 

[dpbayly]

There 100% D1S i know this as ive just changed mine over for some 8000K ones (£26 ebay) and they are so much brighter then the old ones.

Comparison pic 8K on n/s: