Hello, I have been driving my A4 B9 Avant Sline inQuantumgrey for 3 months. Apart from that I am very satisfied with the car, I find the paint in general rather mediocre, relatively many stone strokes except for the white primer on the bonnet. That’s why it shouldn’t work. After 3 months I find the high-gloss B column from the Black package not nice anymore (swirls of the washing system, company car) After our Croatia holiday it seems even more dirty (fingerprints sun cream e?!) Which polish can be used to bring these high gloss parts back into shape? I would be happy about tips. VG Christian