E70 X5 M and E71 X6 M (2010 - 2015)
Reply from BMW Service Department
Re: Fault Code 3525
I did notice that your X5 has very limited trips to a Dealer and thus has never had
a software update since it came from the factory. Current vehicle integration level
is E070-12-07-506. There was a known problem with the N55 engine with...