One time I had this issue and I used clay bar on my windshield and it helped a ton.
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Daily Driver - 2007 E70 X5 4.8i Sport w/20" Wheels
Summer Fun - 2016 F80 M3 | Tanzanite | Black FULL Leather | 6MT | Executive | Lighting | Driver Assist | Adaptive Suspension | 19" Black Wheels | Black Grills & Sides | Roof
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