Below is the DIY I used. I did not completely remove a few things including the wheel well or the tank. I just got them loose enough to get to what I needed to. I did not use a rivet gun. You can just use 2 sets of pliers to lever out the pin and cut it off.

Bimmerfest - BMW Forums - View Single Post - windshield fluid not coming out

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2009 35d, 2006 325i & 330i