Mercedes-Benz A 220 2019–2022 — technical service bulletin
Bulletin SC-2022050023 · NHTSA communication 10215223 · issued Jun 2, 2022
Technical service bulletin
communication type
Engine and Engine Cooling
component
2019–2022
model years
6
vehicle entries
Official summary
Update engine electronics (ME-SFI) control unit software Model 177
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.