Have your washers adjusted so they don't spray over the roof. None of my 3 BMW's exhibit(ed) this annoying behavior. I can't stand driving behind some car when the guy starts washing the windshield non-stop and all the spray goes all over my hood.
Bimmerfest Supporting Member
2011 535i AT | Black Sapphire/Cinnamon | Premium | Heated Sts | Nav | Sirius | Anthracite Hdr & Trim
Prior: 2008 335i 6MT Sedan | Black Sapphire/Terra Leather | Premium | Cold | CA | OEM Alarm
Prior: 2005 330i 6MT | Black Sapphire/Sand Leather | Premium | Cold | UGO | OEM Alarm