I know the sensor came installed, they hadn't tried to glue it on. It wasn't the wiring, that was fine. I have used those windshields in the past without problem, but am not sure that was on a BMW with a rain sensor, I don't have records. The shop said they weren't usually a problem with BMW rain sensors, and suspect it was a bad batch from the supplier. But it was a lot of trouble this time. I would just ensure that they guarantee the rain sensor will work properly, and take it back right away if it doesn't.

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2007 X3 3.0si, 6 MT, Premium, White

Retired:
2008 535i, 6 MT, M Sport, Premium, Space Grey
2003 X5 3.0 Steptronic, Premium, Titanium Silver
2002 325xi 5 MT, Steel Grey
2004 Z4 3.0 Premium, Sport, SMG, Maldives Blue