Mercedes-Benz A 220 2020 — technical service bulletin
Bulletin LI00.20-P-070791 · NHTSA communication 10177559 · issued Jun 16, 2020
Technical service bulletin
communication type
Engine
component
2020
model years
7
vehicle entries
Official summary
The following customer complaints may be noted: - "Service A/B Due" message is displayed in the instrument cluster before the appropriate mileage or date is reached - "Service A/B Due: Do you want to make an appointment?" pop-up message in the head unit display (see attachment) before the appropriate mileage or date is reached - "Your Mercedes-Benz _ is due for service." MMC service lead email or App message (see attachment) is sent to the customer before the appropriate mileage or date is reached. Improper mileage synchronization between the electronic ignition lock (N73), instrument cluster
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.