NHTSA Service Bulletin 10177559: 2020 Mercedes-benz A 220
Official manufacturer communication context for 2020 Mercedes-benz A 220, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.
Reviewed June 2026 from NHTSA manufacturer communication and service bulletin records. Carchieve is independent and not affiliated with any vehicle manufacturer or government agency.
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 (N133/1), and the central powertrain controller (N127). At present time updated Central Powertrain Controller (N127) software is available for the following vehicles: - Model series 118, 177 and 247 equipped with the M260 engine variant - Model series 167 equipped with the M264, M177 engine variants Software is still under development for other affected engine variants and models. This document will be updated when the software is available.
What this bulletin may mean before buying
Treat this as service research, not a verdict on one car. Before you buy, compare this communication with official recall campaigns, model-level owner complaint patterns, and the exact vehicle’s VIN-decoded specifications. A bulletin can help you ask a seller or dealer sharper questions about software updates, known repairs, warranty extensions and service history.
Affected products listed in this communication
Buyer checklist
- Run the 17-character VIN and confirm the year, make, model, engine and equipment match the listing.
- Check recall campaign pages for safety actions that may require dealer repair.
- Compare this bulletin with common problem pages for the same model and component area.
- Ask the seller or dealer whether the bulletin procedure, update or inspection has already been completed.
- Use the used-car buying checklist and get an independent inspection.
Frequently asked questions
What is NHTSA service bulletin 10177559?
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.
Is a service bulletin the same as a recall?
No. A recall is a safety campaign with a required remedy for affected VINs. A service bulletin or manufacturer communication usually describes diagnostic, repair, software, warranty or service information.
How should a used-car buyer use this bulletin?
Use it as a research signal. Compare it with recalls, owner complaints, service records, a VIN report and an independent inspection before buying.
Check the exact VIN before you buy
Model-level pages show public safety patterns. A full VIN report helps confirm the exact vehicle, decoded specs, recall applicability and buyer checks.
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