i had condensation in my headlight on my f10 with adaptive xenon lights few weeks ago. Dried it out and left the top cap off to ventilate it. Now just got an error saying sidelight and indicator fault! So probably due to the water that was inside it. Will this just be a module fault and if so are they expensive / need coding etc? Condensation is actually back even with the cap off so headlight definitely leaking badly. I’ve heard I could take it out, dry it and seal all around with some silicone. Is this the best option or is there a better remedy. Don’t fancy a new headlight!