yeah headlight fluid... didn't you know that the increase of boost puts a strain on your headlights because their fluid is only rated for 5-8 psi and anything over that will cause your boost to not even work, so i fyou put in some part#69780-niner-toatllyfullofshit7452 light fluid in it prevents this loss of power, and the dealer knows this, so they put it in for you without notification
just bein a smart ass (had pranks like that thrown at me all the time in construction... level fluid, board stretcher, disapearing chalk-line.... so i've had to come up with my own counter remarks)
on a more serious note though, i'd cancell if i were you and have one of the offering club members do it with you, that way, you learn, you don't lose a bunch of money, and you get it done by someone more experienced than the dealer