Late to this discussion but can finally proceed with "cleaning the lens of the headlamps" using methanol. I read this solution about 4 years ago but couldn't find any methonal due to geography but that issue is resolved. I don't recall if this method requires removal of the headlamp but it certainly must to get the methanol onto the lens using gravity. Must the headlamp be removed and is there a thread to that process - 2006 Coupe 48,267 miles (Black).
Also I need a new hood piston if anyone knows where they can be had. Everything for these cars is getting more difficult to source as you know.
Thanks
Kimmer