I've owned my black S4 for about 3 weeks now and the gent I bought it off suggested I bought some filler polish by 3M (can't remember the name), so i assumed it must of been used on my car before my viewing. Since buying I have washed it loads of times and today noticed some some really horrible fine scratches on my bonnet, some i can feel with my nail some not..(they weren't visible when i bought it) Its just come back from a cam belt change and I feel like banging down the garage owners door as my first instinct was they did it (almost like a dirty rag was on bonnet with a weight on it then it was pulled). But i'm not sure if its them...? So question is can filler polishes really hide fine scratches this well? and what shall I do about mine now? Re-fill with filler polish if so what would people recommend. I have ordered some meguires scratchX 2.0 to attempt to cut back.. Any advice appreciated.. Thanks J.