Good day everyone, I am proud owner of a 2008 RDX w/Tech package. I pickup this black beauty for only $2000 from a guy while doing Uber. He no longer needed it and I joking said I'll give you $2000 sight unseen and he said it's yours. I know this is well discussed problem but I would like to submit my fix to my specific problem. This worked for me after changing out 2 ballasts and 2 ignitors in my HID headlamps, all I did is removed the vent caps located on the assemblies inside the engine compartment. This may sound strange but I have not had any problem with condensation since removing the vent caps.

 

Nice one!