My headlights both steam up. Plenty of condensation,this happened after fitting xenons,took lights out cleaned them,removed seals and cleaned and put back,still the same.Where are the vents? i cant seem to find any,these are self venting 2002 A4 B6
When did you clean them? Your other post on this was only a day ago & in this weather they're not likely to dry out quickly if they breathing again! I dont suppose when you did the xenon conversion you got out the mastic sealant did you? This will cause air-tightness and hence fogging up. If you've still got the problem suggest a 2-3mm drill hole in both bottom corners of the headlight unit at the back to give you some air flow.
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