I find that on auto setting even with the frequency on the highest setting the wipers are not clearing lighter or normal rain. I have not had this problem with previous BMWs so I am a bit mystified. Rainx might help but should not really be needed. There seems to be a significant gap in the effect between the fastest auto intermittent and the normal speed it the wipers are set to on manually. I seem to be getting a lot of rain that fits into this gap in function.
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