05 2.0 Xenons problems - khizman
Having some right issues with my xenons.

When I turn them on both xenons work, however after 25 minutes of driving ( sometimes less), the passenger side xenon just cuts out. If I turn the headlights of then back on both xenons come on again!

So I personally assume its not the bulb.

I have talked with a couple of dealers and this is what has popped up :

Transformer
Early signs of the xenon bulb going
Wiring issue.

Is there anyone that could possibly help me with this irritating problem.

Thanks for the help.
05 2.0 Xenons problems - Screwloose

The dealers have got it about right. Swap the bulbs side-to-side to prove which it is.

Not sure if the bulb driver/ballast is a separate part, or whether you have to replace the whole headlight. Either way; pray it's the bulb.
05 2.0 Xenons problems - khizman
Indeed.

Bulb - £55 = £130 odd fitted
Transformer inc fitting = £280 :'(
05 2.0 Xenons problems - Screwloose

That's not bad for a HID.

The bulbs can be <£200 and many need a complete headlight @£1000 if the ballast goes.