TKG 
2010 BMW X5 Diesel xDrive35d 4dr SUV AWD (3.0L 6cyl Turbodiesel 6A)
Great BMW for 70,000, Then It Turns Into a Lemon
 Build, quality, road feel were all BMW ultimate driving machine.  We bought this car new and checked all the boxes.  It was my 11th new BMW, and we were thrilled with it until the check engine light came on repeatedly beginning at around 70,000 miles.  Over $2000 in repairs later, our very cooperative dealer has been unable to solve the problem.  Their appeal to BMW corporate fell on deaf ears.  I drove my last BMW diesel (1987 BMW E34 525td) nearly a million miles, which is what a BMW diesel should easily achieve.  But this one has only 77,000 miles and is a lemon outside the lemon law.  Our BMW dealer has given up and told us to ignore the check engine light, not acceptable for a $66,000 (2010 price) BMW.