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My windshield is broken over the sensor, must it always be replaced?
If a rain sensor windshield is broken over the sensor, must it always be replaced?
Actually, the repair of a rain sensor windshield depends on which rain sensor design is on the windshield. Most GM rain sensor designs have a small radial area for sensor location, which is only limited by the length of the lead. If a small break is present on a GM style rain sensor windshield, it is possible to remove the sensor and reattach it to an unbroken area using the GM replacement kit. Once the rain sensor is relocated and is operational, the technician can proceed with the repair. On several other designs such as the BMW and the Mercedes, the rain sensor is precisely located in an opening in the paint band which does not permit an opportunity to relocate the sensor. For these types of rain sensor design windshields that have a break over the sensor, it is best to replace the windshield instead of trying to repair it.