you also need to clean the lens or the CMOS sensor - you have a grain of dirt in the same place on each photo. CMOS if I'm guessing.
BTW, cool pics, I was just giving you a hard time. The colors look a little funny, which is most likely your white balance being off.
1999 e46 328i Ti Silver / Black[retired]
2007 e90 335xi Jet Black / Black[retired]
2011 e70 X5 35d Vermillion Red / Cinnamon
2011 e92 M3 LeMans / Fox Red extended