I bought this car in October 2007 with 2 miles on it. I have had it to the shop 1 time for a stero fuse that went back and was replaced under the warrant. I replaced the run flat tires with regular tires ($70 dollar Pirelli's from Discount Tire) and it made no change in it's performance, "repeat, no change in performance after i had run the original tires on Nitrogen for 39000 miles. Nitrogen makes the difference in tires, trust me. The car now has 53000 miles and it still runs great. The only notable annoyance it that the timing clicks and has clicked since about 8000 miles but it is of no harm to the engine. I get the oil changed once a year for about $80, not at the dealership. Great car.
If you are under warranty or less than 75K miles, you are lucky otherwise get rid of it before parts start to fall of the car and it stops on you in the middle of a freeway at 75 miles per hour speed not once but thrice, each time for a different issue. I would also quote here a dealership words on a expensive repair cost "Sir, what do you expect, your BMW has over 90K miles". I learnt my lesson that day.
I owned a 2002 325i before I bought my 2008 328i sedan new four years ago. The OEM Bridgestone run-flats were even more awful than many folks are willing to say. After my run-flats wore out at only 16K, I replaced them with a set of Michellin Pilot Sport A/S Plus. After 10K, these tires are wearing very well and give me a soft, quiet, and great-handling ride. The car has been incredibly reliable--simply outstanding since the beginning--and still puts a smile on my face when I drive it. It has a sporty yet secure, comfottable ride and I get about 18 mpg in the city and almost 30 on the highway.
Bought this car in November 2010 with 50k miles as a CPO. Water pumps are electric and go out every 50k miles or so, covered under cpo. Injectors on this car are notorious for failing, had 3 fail on my car also covered under cpo. Finally the condensor was leaking also replaced under warranty. I sold the car recently for a good price as it still had one year left on the maintenance and warranty. But the new owner reported serpentine belt failure. This is due to a bad subfram design and driver side engine mount which allows the belt to hit the subframe, over time the belt will shear and WILL FAIL. BMW has a "New" subframe but will not cover costs to fix their mistake. Idiots.
This car was great! When I first bought it I loved it. It had 72k miles on it. I bought it from an Audi dealer (someone had traded it in). In less than 6 months I needed new brakes all around. The driver side headlight had also gone out. Around 3 months after that, the passenger side headlight went out. I purchased the car in April 2014 and by August 2015 at around 84k miles, I had to get a new transmission which thankfully was covered under an aftermarket warranty. So within not even a year and a half, and about 12k miles, the following repairs needed to be done: new transmission, all around brake pads, driver and passenger side headlights, brake fluid flush, oil leak, power steering fluid leak, and some kind of fuel sensor or something that I don't know what in the world the dealer was talking about.