Ard- thank you.. Well understood, and appreciated. In a sense its difficult to ascertain someone's true intentions through written words.
All this being said- our truck is currently at a local mechanics shop-whom we've used for 15 years, and they work on a lot of European vehicles. So far, nothing catastrophic. The closest BMW dealer is 45 min from my house. I've already talked to service manager, and it this local guy sees anything outside of simple, then the BMW dealer will tow it out there. As such, I am much more confident knowing that BMW will come and get it- which was a huge concern for us.
As for your advice- I am thankful in spite of misunderstood beginnings- for your advice. I am an eager learner, and since I've been doing most of my repairs, I've learned a tremendous amount, thanks for guys who are willing to share what they have learned as well. This X5 though- a different animal... Love the truck, but wow..
As for engine- its the 3.0 inline 6.