I have a 2000 323ci and have had the following problems:
1. Wrong setbelt configuration installed on drivers side
2. Sunroof broke (2x)
3. A/C broke
4. Coolant thermostat replaced
5. Plastic screw that holds jack in place broke (took me 2 hours to unscrew so I could replace a flat)
6. 4 light bulbs out in 6 months (2 left side turn signals, 1 left head light, 1 right head light
All these problems occured in less than 20,000 miles!
check out my postings for more details:
http://www.automotiveforums.com/vbul...5&goto=newpost
Good luck if you decide to buy a BMW