I don't know about these bulbs but I know MTEC do H8 bulbs that are similar.
http://www.hids-direct.co.uk/mtec-12v-55w-super-white-xenon-bulbs-p-393.htmlNeither should show a bulb error as they are both incandescent bulbs rather than LEDs. I rarely use fogs anyway so haven't really looked at bulb upgrades...unless I can get the cornering fogs feature VagCommed. - Anybody near Lichfield?
...arn't the main beam/DRL H15, not H18?
I'd love some whiter H15s but don't think they're made anywhere. Apparantly they are only made my Osram?
These would be nice but nobody knows the retailer

Detritus.