Hi guys,
Having worked for VAG in the uk, i've seen this problem a LOT!
Unfortunately, it is a 'characteristic of the vehicle'.
If you park your car in an area that is cold/damp then you will get fogging in the lenses and it won't make any difference how many times they are replaced, they will still do it.
The problem is that nowadays, lamps are made of plastic and not glass, so they have to be vented so that the heat can escape....so they don't melt! so in cold and damp conditions, you will get some ingress of moisture!
VAGUK told us that if the fogging doesn't go away after 15 mins with lights on, or if there is pooling of water, then we should look for damage/faults in the lamp units. otherwise, if the fogging goes away reasonably quickly, then there is no fault.
He who dies with the most toys wins!!!!!!!!
2000 Golf 3.5 Cabrio lowered, low ratio box black-on-black-on-black
2010 Tiguan TDi Manual Stage2 tune, DPF delete Egr delete
2008 Jetta BWA DSG Stage 2 tune, 3"VF intake
Formally known as WA 79 cabby
Bookmarks