Well if your asking me, the truck says I need a service in 8,ooo miles. All bmw's tell you when they want service lol I am not sure what that service requires. If you buy any vehicle with 50k on it you should expect to have some money set aside for repairs. Not range rover repair money but money none the less. I would say go CPO otherwise you could end up paying for anything under the sun. If your really interested call your local bmw dealers service dpt and tell them you just bought an e70 x5 with 50,000 and you plan on servicing it there. Then ask what major services you can expect to need in the next say 40,000 miles?

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2011 50i BS/Black Nevada
(gone) 2007 4.8i AW/Tobacco