2007 BMW 3 Series 335xi 4dr Sedan AWD (3.0L 6cyl Turbo 6M)
I bought 335XI with all the options, car has been a blast to drive, however in May 2008 my engine light came on took it to the dealership. Dealership had the car for 3 weeks after replacing both turbos and numerous other parts I got the car back but the mechanic did not know what caused the original failure. I started googling "335Xi twin turbo failures" there is a real problem with these cars overheating into limp mode especially cars that don't have oil coolers installed which mine did not I called BMW of North America 3 different times and got the same response, though I bought the 335XI with all options, since I had 17" instead of 18" wheels I was not eligible for the oil cooler kit
Very disappointed in BMW obviously cars without the oil cooler (should have been installed at the factory) are having serious over heating issues (look at the online complaints). Paid $50k for a car that I have to baby, BMW should retro fit all 335s that left the factory without oil coolers.