Im looking to buy a 90-100K mileage X5 (4.4) and I wanted to ask advice as to what big ticket Items to look for at this mileage range? Trans leak, shocks, struts, computer system, etc. I plan to have whatever vehicle I find looked at by the dealer, but I would like to know some facts myself so I can identify areas I want throughly reviewed. Any input would be appreciated. Also, if the 3.0 is has less issues, I appreciate any input there as well. Ive heard the trans starts to go on the 4.4 models at around 100K and not with the 3.0.