MSD85 refers to the generation of the Siemens Continental ECU Based on the TriCore TC1796 processor Internal flash memory 2MB and 128kb internal Eeprom and 2mb of external flash memory and 95128 external eeprom 16kb
OBD Mode - Only for Diagnostics
Bench Mode - You Don't need to open your ECU - Only Calibration Area R & W
Boot & BSL Mode - You need to open the ECU - Full Reading & Writing