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Old 04-21-2021, 09:34 AM
80stech 80stech is offline
Join Date: Mar 2016
Location: Saskatchewan Canada
Posts: 2,021
80stech is on a distinguished road
As far as I understood the sensor has a fixed focal length for the thickness of the glass and the calibration was for sensitivity on the surface at that focal length. I looked into getting a new windshield for mine a while back and it was impossible to get the original thickness other than from the dealer at about 4-5 times the cost.

BTW My rain sensor works flawlessly other than speeding up when driving under LED street lites! I wonder if that is a problem with the newer ones as well??
1988 325is (purchased new) sold
2004 X5 3.0 2005 X3 2.5
2008 X5 3.0 (new to me)

Last edited by 80stech; 04-21-2021 at 11:03 AM. Reason: add
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