Here is the 2009 version of BMW's Certified Pre-Owned Consumer Information Statement. This has more information than you will find at BMW's website at http://www.bmwusa.com/Standard/Conte...y/Default.aspx
Some interesting additional information:
The website states the Engine is covered, but the actual document excludes piston rings, valves and valve guides.
The website states the Suspension is covered, but the actual document excludes suspension dampers, springs, stabilizer bars and supports/links, control arms and brackets, wishbones, trailing arms, bushings, thrust struts, ball joints, center tie rods, tie rod ends and adjusting sleeves, ideler and pitman arms. Really? What's left?
The weasel wording that BMW uses to protect itself is "there are components or parts on any vehicle that are subject to gradual deterioration or wear"
. I think it's fair to say just about any part on a car fits this description. I find this pretty lame for a 2 year extended warranty on a luxury car. If a piston ring and valve can't make 2 years beyond the basic factory warranty there is clearly a design problem.
There are plenty of other exceptions also, take a look at the attached PDF of the booklet I scanned.