Can anyone shed any light on the subject? I recently purchase an 04 S4 and last night was the 1st rain storm that I've encountered owning this car. So I awoke this morning to take her for a spin and when I turned on the lights I got a left lamp dipped alarm on the dash. So I walked out to find the headlamp assembly completely condensed thus not allowing the Xenon light to fire up. 1st I stressed out knowing this wouldn't be a simple fix...but as the day went on the condensation went down a bit and I tried the lights again...this time it works....thank god...now I want to correct the problem with the lamp assembly seal and either vent it or fix it. Does anyone know of a trick to fix this glitch???? Any input would be greatly appreciated,

 

NOt to sure of what you can do to stop the condensation in your headlamp assembly. Because the assemblycomes with ventilation on the sides and thats how all the moisture is getting inside. The dealers gonna tell you that its normal for the headlamp assemblyto have condesation in them.

But for your headlight goin out. You might need a new Bulb or Ignitor?To find out swap bulbs from left to right. If theSAME bulb goes out then replace the bulb. But if it goes out on theSAME SIDEthen your gonna need a new Ignitor.