Check engine light will not stay off when reset.all obvious checks have been don

Greetings, The best thing to do is to bring it in so some tests can be performed to determine the source of the problem. Please contact us at (301) 231 5400 ext. 1 so we can set up an appointment to perform those tests. Kind regards, Stephane Grabina BMW Excluservice 12224 Parklawn Drive Rockville, MD 20852