I specced the Lux pack for the folding mirrors too. As far as I can tell, my MkVI GTI still has the auto dimming mirrors, auto lights and auto wipers.
I say as far as I can tell since:
1, The Auto lights and Xenon DRLs means that the lights are pretty much on all the time.
2, There is a auto dimming switch on the rear view mirror which turns on and off, but I haven't really noticed the difference.
3, I've not worked out how to use the auto wipers as yet(!)