well, this is a tough spot.

The old CPO just excluded "mirrors"...the new one excludes 'mirrors, except drive components'.

One could argue the new CPO language was changed to CLARIFY, they may argue 'no the new language expanded coverage'.

Did you drop the car off, agree to $$$ and now find yourself trapped? Valuable lesson- always determine your financial exposure, never assume.

Explain to BMWNA that it isnt the dealer wthat will get reported to XYZ state agency if they refuse to honor the warranty... this will be a 'squeaky wheel' effort, IMO.