I cleaned the wiper with a soapy cleaner and made sure it was done well. It streaks a little now (much less) so maybe there is more to be done. I will tackle the window and get it really clean and see if this helps. I really think some sort of gunk like manny said is on there and it needs a little elbow grease. PaulH, I have heard about using very little armour all on wipers. It keeps them soft but if you use too much or don't get it all off, it will give you the "rainbow" streak. Obviously it has worked for you. Nice work!

Shaun

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1992 Pearl Black 500E (08/91) SOLD
1997 White C36 AMG (T-Boned by Chevy truck)
2003 Silver C32 AMG (lease due, traded up)
2002 Pontiac Montana VisionSOLD
2007 Volvo XC90 3.2
2005 E55 AMG (newest ride)