One sunny day, it started to rain and so, like most people, I turned my wipers on. Well, I just happened to be driving past the BMW dealer when this happened and my darn wiper assembly broke in two. Not the blade, but the whole arm about 2 inches from where is bolts into the motor assembly. It seem the arm is made of pot metal and after 12 years, it just broke. New arm was $80 and I forgot to get my CCA discount.