NHTSA service bulletin

NHTSA Service Bulletin 10249537: 2019-2024 Mercedes-benz A 220

Official manufacturer communication context for 2019-2024 Mercedes-benz A 220, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.

NHTSA service bulletin 10249537 summary graphic for 2019-2024 Mercedes-benz A 220
10249537NHTSA document ID
Manufacturer communicationcommunication type
37affected product rows
37source rows grouped

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 Customer complains about anti-theft alarm system triggering without obvious cause when the vehicle is parked and/or when entering the vehicle. All MFA2 and 167 derivates with code 882 may be affected. This is caused by a sporadic loss of communication to the anti-theft alarm system [N26/6]. In many instances there are one or more FCs U110D87, U001988, U016787 stored in the control units anti-theft alarm system [N26/6] and/or signal acquisition and actuation module [N10] / [N10/6]. The alarm system memory may contain several alarm sources. Please process all following points in succession: 1. Check - Power supply of the overhead control panel [N70] - Ground points of the overhead control panel [N70] Model series 118, 177, 247: W78 Model series 167: W15/2 Model series 243: W78/2 - LIN lines between overhead control panel [N70] and alarm siren [H3/1] - CAN lines between overhead control panel [N70] and signal acquisition and actuation module [N10] or [N10/6] 2. Open TIPS case - Open a TIPS case for vehicles: As of manufacturing date 01.02.2022, except production plant 4831 Aguascalientes Mexico or 1380 Tuscaloosa As of manufacturing date 01.08.2022 and production plant 4831 Aguascalientes Mexico or 1380 Tuscaloosa - Attach photo of overhead control panel label (see example images) - Add control unit log of anti-theft alarm system [N26/6] 3. Remedy for vehicles prior to manufacturing date 01.02.2022 (except production plant 4831 Aguascalientes Mexico or 1380 Tuscaloosa) or 01.08.2022 (production plant 4831 Aguascalientes Mexico or 1380 Tuscaloosa) - If the problem cannot be reproduced, the overhead control panel [N70] (anti-theft alarm system [N26/6] is integrated) must be replaced.

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 2202019-2022Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg A352020, 2021Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg A452020Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg Cla352020-2024Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg Cla452020-2024Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg Gla 352024Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg Gla 45s2024Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg Gla352021-2023Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg Gla452020-2023Ask 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 Glb352020-2024Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg Gle432020, 2021Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg Gle532021-2024Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg Gle632020-2024Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg Gle63 S2021-2024Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg Gls632020-2024Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg Gls63e2023Ask for service records and run the exact VIN before purchase.
Mercedes-benzCla 2502020-2024Ask 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 10249537?

Complaint Customer complains about anti-theft alarm system triggering without obvious cause when the vehicle is parked and/or when entering the vehicle. All MFA2 and 167 derivates with code 882 may be affected. This is caused by a sporadic loss of communication to the anti-theft alarm system [N26/6]. In many instances there are one or more FCs U110D87, U001988, U016787 stored in the control units anti-theft alarm.

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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