I had two X5 5.0s (2011 and 2012) with same problem. First was bought back by BMWNA as a lemon. Turned in last one at end of lease - no way I was going to buy it with numerous engine issues. Dealership was never able to figure out the problem. First time in nearly a decade that no one in my household has owned a BMW.

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2012 BMW X5 50i

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