NHTSA service bulletin

NHTSA Service Bulletin 10219256: 2017, 2018, 2020, 2021, 2022 Mercedes-benz Amg A35

Official manufacturer communication context for 2017, 2018, 2020, 2021, 2022 Mercedes-benz Amg A35, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.

NHTSA service bulletin 10219256 summary graphic for 2017, 2018, 2020, 2021, 2022 Mercedes-benz Amg A35
10219256NHTSA document ID
Manufacturer communicationcommunication type
4affected 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

Complaint On AMG variants of MFA2 platform vehicles (A35/45, CLA35/45, GLA35/45, GLB35/45) without code 853 (Midline sound system) or 810 (Premium sound system), the subwoofer does not emit any entertainment sound. Cause The subwoofer only emits entertainment sound on vehicles with code 853 and 810. For vehicles with standard sound, the subwoofer is only used for the engine sound. Remedy If the vehicle has neither code 853 nor code 810, then the subwoofer does not emit any entertainment sound. This is as designed and therefore not a technical issue. Parts replacement is not necessary or justified. See also SI82.62-P-0004A.

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-benzAmg A352020, 2021Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg Cla352020-2022Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg Gla352017, 2018, 2021, 2022Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg Glb352020-2022Ask 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 10219256?

Complaint On AMG variants of MFA2 platform vehicles (A35/45, CLA35/45, GLA35/45, GLB35/45) without code 853 (Midline sound system) or 810 (Premium sound system), the subwoofer does not emit any entertainment sound. Cause The subwoofer only emits entertainment sound on vehicles with code 853 and 810. For vehicles with standard sound, the subwoofer is only used for the engine sound. Remedy If the vehicle has neither.

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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