FYI- I bought my 4.6 new. I have had very few problems problems over the 120,000 of ownership. I push it hard and have many mods that should cause trouble. If purchased used it is all depends on how well the vehicle was maintained. The forum will be lots of help for any questions you have. Welcome!

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X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior
Dallas