Mercedes-Benz A 220 2019 — technical service bulletin
Bulletin LI07.70-P-077746 · NHTSA communication 11005284 · issued Jul 16, 2024
Technical service bulletin
communication type
Engine
component
2019
model years
1
vehicle entries
Official summary
Complaint Check engine light is illuminated Fault code stored in MED41 control unit- P013300 Oxygen sensor 1 has a delayed reaction. Cause MED41 software Remedy Perform software update of MED41 control unit.
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.