I just had my windshield replaced and the rain sensor doesn't work. The intermittent function just turns the wipers on at normal speed.

The guy who replaced my windshield broke the plastic surround but used some adhesive to put it back together, and I thought no big deal if it works.

I watch him put the rain sensor on the windshield and he didn't use any silicone or adhesive. Is this normally part of the process?

I looked at the windshield and I don't see any bubbles underneath the sensor. How do I troubleshoot or do I just need to bring it in to the dealer?

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Mark
2001 3.0 Original Owner, still going
2012 E70 xDrive 35i Pre-Owned -- sold because no one could figure out the transmission problem