Hello All, I am hoping the wise members on the site may be able to assist me. My '03 Accord 2.0 exec recently passed an MOT first time, but came back with an advisory that the headlight lenses were discoloured (not affecting pattern). The lenses seem very dirty, but it isn't something that will just wash away. The car is fitted with headlight sprays that activate whenever I use the windscreen washers. Could this be causing a limescale build-up? Or should I try and disconnect the light washers to prevent any further build up? Or is there a way to clean them up? Any advice on this subject will be most welcome! Cheers!