Thread: Auto wipers
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      01-15-2013, 03:03 AM   #13
zofinger
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Drives: F30 335d MSport
Join Date: Jan 2013
Location: England

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No doubt that if the windscreen is clear (in/out) it helps. Especially removing oils/grease because, as suggested above, that can distort water which I gotta assume can't help the sensor. Hope that helps a little. Other than that you have a tech issue or simply the function doesn't suit your driving needs.