My C-Class Estate (S203, Bj. 11/2006) was on a street in the new area. Nearby is a roof overhang was sprayed with white paint. Aided by the wind direction a paint mist has (white paint) deposited on my vehicle - it looked like sugared. Unfortunately, I drove only 5 hrs. Later in the wash, but has brought nothing. Through various forum entries I became aware of the clay bar. With some skepticism, I then the clay bar lubricant Set of Petzoldt decided (due to the reviews and ratings). From the first test on a smaller area, I was completely thrilled: the paint dots could be removed with the wonderful Reinigungsknetmasse and lubricants. Now I have to work 6 hours the color dots (were strongly affected by the fog roof and bonnet) away at my entire car. On some corners you had to with a bit of tact and patience have - but it was worth it. Important was: the working surface (it is dry again by rubbing with the plasticine) always keep moist with now and then a splash lubricating. For the removal of paint residues on the roof bars and the door seal rubbers I have to yet to another agent look, since this cleaning is not suitable. After I had worked the entire car was still about half of the lubricant left and the degree of contamination of clay remained very limited. All in all, total buy rating and 5 stars