I started surfing the web forums about 6 years ago when I was buying my first German car, a '99 VW Passat. After reading a lot of negative threads I almost backed out of the deal. I spoke with a couple people I would run into in parking lots when I saw them driving VW's and asked them about service reliability. Most of them had no issues. I went ahead and bought the Passat and basically had no service problems in the 3 years I owned it. My next car was a Mercedes C240 and again, after surfing the MB boards I almost passed on it. I bought it and for 3 years, it also was one of the best cars I've ever owned. So, when I started browsing the BMW forums before my 330i purchase I wasn't surprised to see all the horror stories. I've only had it 4 months so I don't know what it's long term (3-4 years) reliability will be, but I don't expect it will be much different from the VW and MB.
What I've learned is the people (including myself) who participate on the car forums are only a tiny fraction of the population who own the model in question, and are typically very picky with car performance and service issues. So, I think you get a much higher concentration of "bad" stories on these forums than the true picture across all the owners. There are problems with particular vehicles of all car manufacturers but I think the overall number is small.
So, in the end, be happy with the car and hope you got a good one -- good luck!
What I've learned is the people (including myself) who participate on the car forums are only a tiny fraction of the population who own the model in question, and are typically very picky with car performance and service issues. So, I think you get a much higher concentration of "bad" stories on these forums than the true picture across all the owners. There are problems with particular vehicles of all car manufacturers but I think the overall number is small.
So, in the end, be happy with the car and hope you got a good one -- good luck!