The model year range ('01 - '03) may be too old for CPO program. Visit
MBUSA and read about CPO qualifications.

CPO is not the same as the more inclusive new car warranty so be sure
YOU understand what is and isn't covered under the CPO warranty.

As to the ML - well, it's not one of the better M-B models. The mid size
sedans are far better, IMHO.