I've had my benz in the shop at least eight times for power window failures over the past 3.5 years since I bought it, it pisses me off beyond belief, I decided to not lemon law it because I love the thing otherwise, I've just mentally prepared myself for not knowing if the windows will actually go up each time I use them and to expect a trip to MB tampa every six months or so when they don't. Fortunately so far they've always broken on the way home and in sunny weather.