NHTSA service bulletin

NHTSA Service Bulletin 10210919: 2021, 2022 Mercedes-benz A 220

Official manufacturer communication context for 2021, 2022 Mercedes-benz A 220, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.

NHTSA service bulletin 10210919 summary graphic for 2021, 2022 Mercedes-benz A 220
10210919NHTSA document ID
Service campaigncommunication type
24affected product rows
90/100quality score

Reviewed June 2026 from NHTSA manufacturer communication and service bulletin records. Carchieve is independent and not affiliated with any vehicle manufacturer or government agency.

Quick answer

Mercedes-Benz AG (MBAG), the manufacturer of Mercedes-Benz, has determined that certain MY 2021-2022 CLA-Class, A-Class, CLS-Class, E-Class, GLA-Class, GLB-Class, GLC-Class (118, 177, 213, 238, 247, 253, and 257 platform) vehicles were manufactured without the HERMES control unit, as disclosed to the vehicle purchaser at the time of sale. As a result, the Mercedes Me Connect services including the emergency call (eCall) function are currently not available. What Were Doing MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will retrofit the HERMES control unit to the vehicle and enable the Mercedes Me Connect functions on applicable vehicles.

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

MakeModelModel yearsBuyer note
Mercedes-benzA 2202021, 2022Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg A352021Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg Cla352021, 2022Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg Cla452021, 2022Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg Cls532021Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg E532021, 2022Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg E53 S2021Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg E632021, 2022Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg E63s2021, 2022Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg Gla352021, 2022Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg Gla452021, 2022Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg Gla45 S2021Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg Glb352021, 2022Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg Glc432021, 2022Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg Glc632021, 2022Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg Glc63 S2021, 2022Ask for service records and run the exact VIN before purchase.
Mercedes-benzCla2022Ask for service records and run the exact VIN before purchase.
Mercedes-benzCla 2502021Ask for service records and run the exact VIN before purchase.

Buyer checklist

  1. Run the 17-character VIN and confirm the year, make, model, engine and equipment match the listing.
  2. Check recall campaign pages for safety actions that may require dealer repair.
  3. Compare this bulletin with common problem pages for the same model and component area.
  4. Ask the seller or dealer whether the bulletin procedure, update or inspection has already been completed.
  5. Use the used-car buying checklist and get an independent inspection.

Frequently asked questions

What is NHTSA service bulletin 10210919?

Mercedes-Benz AG (MBAG), the manufacturer of Mercedes-Benz, has determined that certain MY 2021-2022 CLA-Class, A-Class, CLS-Class, E-Class, GLA-Class, GLB-Class, GLC-Class (118, 177, 213, 238, 247, 253, and 257 platform) vehicles were manufactured without the HERMES control unit, as disclosed to the vehicle purchaser at the time of sale. As a result, the Mercedes Me Connect services including the emergency call.

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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