If your bi xenons are UK spec then they would come with a blue/purple tinted indicator bulb that looks even better than just the standard silver bulbs!
Sounds to me that your bi xenons may not possibly be UK spec if they do not have blue/purple tinted indicator bulbs.
The Bi-Xenons are deff UK spec, parts numbers checked and the fact they came off a trashed 2005 model.
The only thing that was missing when i got them was the lamp holder for the indicators, all i dont was transferred these from my xenons hence the orange bulb.
OK - you got me worried there for a second... You need the part no. for the OEM bi xenon indicator bulbs. I will try and get part no. for you buy contacting stealership with my chasis details as my car has OEM factory fitted bi xenons...