Originally Posted by waybomb

I find if it is barely drizlling on a cold morning, like this morning, the wipers will run continuously until the cabin air warms up. I think condensation forms on whatever the sensor is. After the interior warms up, they work as they should. I have two black thingies attached to my windshield in front of the rear view mirror. I am guessing one is the rain sensor. What's the other? 2001 E430