If you know how to turn a wrench and follow instructions, you'll solve most of your problems without emptying your bank account with the helpful posts found on this site. I have an '01 and most of what has gone wrong on mine was remedied by buying the parts and doing it myself with the help from the gracious people here.

Good luck, most of the problems the X5 has can be fixed in your garage and they're usually much easier to fix than you would expect. Good luck, I'm sure you'll find all the advice you need here.

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2005 ///M3 Competition / Interlagos Blue-Black /6spd/SS Race Exhaust/Angel Eyes/Passport HW/Mich. Super Sports Soles (love em)
2008 ///M3 Melb Red w/ Beige Novillo, Tech, Prem, & 19" (Retired)
2005 X5 4.4i Estoril/Grey Sport, Nav, DSP, Prem, Pano, etc. (Wifey's)
2007 335i Silver/Black SP,PP,CWP, Comfort access, & Sirius (Retired)
2001 X5 3.0i (Retired) Silver/Gray Sport w/19"/Prem/DSP/CWP
2002 YZF600R (Retired)