One problem related to engine oil leaking has been reported for the 2015 BMW X5. The most recently reported issues are listed below.
2010-2013 n63 v8 engines had numerous issues with valve seals, ccv hoses, oil leaks and premature engine failure leading to lawsuits and recalls. BMW says they improved the problem with 2013+ n63tu engines, but at 50,000 miles , mine also had failing ccv hoses and oil pan leaks, and potential expensive valve guide seal failure.