[stooky]

I have a 2011 E63 AMG. I love the car but just recently it has given me some heart ache. When I first start the car, the wipers suddenly lock into place at the far end position. It is usually with a hard knock against the windshield edge. They can only be set back in place manually as the wiper switch and water solution button fail to operate. After repeated starting and shutting off of the engine will they finally function normally. This is frustrating and embarrassing. Any thoughts before I take out the hammer....