Hello, I have a 06 Z4 Roadster. I changed the light on the drivers side and didn't get it sealed. Condensation & water got in the housing. I took out the ballast and hooked it up on the opposite side and it worked, I did the same thing w/ the headlight and it too worked. What could possibly be wrong? Any ideas? I am open for suggestion. I have the back off now letting it air out. :?