Yes I got tired of the yellowed clear coat that some previous owner did to grace this X5 4.6is. So this afternoon removed both headlight cans, placed them on my workbench started to wet sand with a 400 paper, progressed to a 800, then 1000, then 1500 and finally a 2000 grit wet paper. Pulled out the handy buffer some 3M micro finish compound. Following the compound did a Mezurna 4000 final finish and wallah. Sealed the lens to protect the finish and installed them back. Wow what a difference.