From Daimler's 2017 EPA engine certification application located here: https://www3.epa.gov/otaq/datafiles/FOI_HMBXX_COMMON_APP_INI_R04.PDF
For the OM642:
View attachment OM642 2017 Emission Control System Diagram.pdf
For the OM651:
View attachment OM651 2017 Emission Control System Diagram.pdf
For the OM642:
View attachment OM642 2017 Emission Control System Diagram.pdf
For the OM651:
View attachment OM651 2017 Emission Control System Diagram.pdf