The reason being is you don't know how it was treated, and boy has this car been costly. Worst car I've ever owned in terms of reliability. Not worth the "privilege/pride" of "...but it's a BMW." Seems there's 2 kinds of reviews here, crummy car & I love it but it's expensive to maintain (wait till you get more miles on it)! Bought used at 72,500k miles and in 3 months we were moving/driving from Seattle to AZ. We'd had it checked before the move & I asked the mechanic "is summer heat in the desert a factor with reliability at all?" He chuckled at the question. 1) paid $400 to check car & replace oil cooler seal & filter stand gasket. 2)&3) 15 miles into the moving trip the transmission slipped & did so 5-6 times on trip to AZ. Over $10k repairs for this & replacing the catalytic converter, and the mechanics said 4) it desperately needed a "system update" which had it in the shop an extra 3 days. 5) The USB port went out right away. The A/C is kind of annoying because you never feel the left drivers side vent on you unless it's blasting. 4 months later 6) the water pump went out at 81k miles along with 7) thermostat assembly: $1300. 8) The suspension needed work signal by one of many times warning light come on: about $1000. If you worship a car & devote much money to it- this is the car for you!
My 2008 X5 3.0 is a love hate relationship. One of my absolute favorite cars...the styling is amazing, the interior is simple but extremely well built. Power is smooth from the inline 6 engine, and the handling is like a sports car.
But.....the least reliable car I have ever owned, by a long shot. Bought the car new, and at 90,000 miles I've had
...Radiator replaced ...coolant expansion tank ...valve cover gasket, twice! ...I drive controller ...water pump ...various gaskets that always amount to $1k each in labor ...Hydraulic sway bar ($2k just for the part alone) ...Valve cover ...Vanos solenoids
Even after all that, I still enjoyed the car and did all the repairs. Til it developed a well known flaw of the 3.0 engine. Camshaft bearing failure. Which requires 25 hrs labor and a whole new cylinder head. Minimum $5k at a independent shop. More like $7k at the dealer. Suffice it to say that ended my love affair with the X5, and I traded it in.
Great cars, but don't own one without a warranty, and better yet, another car to drive while it's in the shop. You'll need it.
worst car I've ever owned. I had this car for 1 year & 4 month . The 1st month I owned my car I had to fix the thermostat & water pump. Then after that month the wiper motor went. I've never been able to truly drive my car any long distance for fear of it breaking down. I've replaced the Sparks plugs and all the cylinders because the car would spit , sputter & shake. My engine light constantly comes on. Now I know why changed owners so many times. Biggest piece of crap.
One year ago I bought this car for about a year it ran wonderfully at 110,000 miles As soon as I went over the 110 Mark issues began to happen new alternator AC valve problems battery went dead just no longer felt safe in this car This is supposed to be a supreme luxury vehicle I did not expect these problems till at least 200,000 miles I'm going back to my Lexus RX thank you