Mercedes-Benz A 220 2020 — technical service bulletin
Bulletin LI00.20-P-070791 · NHTSA communication 10176665 · issued May 28, 2020
Technical service bulletin
communication type
Electrical System
component
2020
model years
7
vehicle entries
Official summary
Implausible "service due" instrument cluster message, head unit pop-up, or MMC message
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.