Bought this for our 2004 E500. I have had ""crickets"" in the HVAC system for probably 5 years, maybe even more. The chirping noise at low speed annoyed me no end, but I just couldn't bring myself to pay what the dealer wanted to fix it. Horrendous.Upon review, I realized that this was probably a one-hour DIY project the first time, and there a bunch of YouTube videos on how to do it yourself. After comparing the reviews and quality-reputation of this TYC versus the more-than-twice-as-expensive Behr OEM fan, I decided to save the money and get this one. I am very glad I did. For a 13-year-old car, no need to spend the extra money.Although I was thinking I would install it myself, as it was, I had my mechanic install this while he was doing some other major work. He charged me like .5 hours of labor to do it.Despite all the comments about how much better the Behr OEM fan allegedly is built, the fact is that that is the one that has had crickets for years. This one not only blows at all speeds without crickets, it moves just as much air as the Behr, and actually seems quieter to me. As it turns out, some of the humming and other noises that I had thought were the engine were in fact from the old fan. This TYC fan makes it noticeably-quieter in the car than it was with the old fan, at all speeds. No vibration. No ""out of balance"" stuff like the other posters complained about.This is a perfectly good fan, it runs well, runs quiet, moves lots of air, and is half the price of the OEM fan. I can recommend it highly.