Thursday, June 27, 2019

Mercedes-Benz A220 2020 Technical Service Bulletin # S-54_21-246 Date: 110719


Computers/Controls - Module Programming Precautions



Date: July 19, 2011



Order No.: S-B-54.21/246



Group: 54



SUBJECT: MY-All, Models All



Programming Control Units



Before programming control units, make sure that the latest software release is on the diagnostic system! The available add-ons must always be



installed before starting any control unit programming!

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