Submitted by Tesla_Dad on January 12, 2019
After having driven through recent bay area rains (constant drizzles, rarely a downpour), here are my observations on the M3 wipers.
The auto setting, which is "beta", is unreliable. I stopped using it.
The wipers are of low quality. They leave streaks.
The slowest manual speed is too fast for bay area rains. The windshield is totally dry on some cycles and when this happens, the wiper drags on the glass.
I end up using the single cycle push button on the turn signal stalk, but obviously that is not ideal.