NHTSA service bulletin

NHTSA Service Bulletin 11025150: 2020-2026 Mercedes-benz Amg C43

Official manufacturer communication context for 2020-2026 Mercedes-benz Amg C43, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.

NHTSA service bulletin 11025150 summary graphic for 2020-2026 Mercedes-benz Amg C43
11025150NHTSA document ID
Manufacturer communicationcommunication type
35affected 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 A harsh 5-4 downshift can be felt during deceleration while braking or coasting. It may be mistaken for a hard brake engagement Cause Poor learning of brake B06 adaptation values over time. Remedy Short-term remedy: 1. Perform IPR and follow the instructions. 2. Perform resetting of deceleration values (VGS > Special Procedures > Special procedure > Resetting learned values Deceleration mode) 3. Perform standard adaptation 4. Reevaluate the concern and release vehicle if no longer present Note: ALL steps (resetting learned values and standard adaptation) must be completed to fully resolve the complaint. Long-term measure: Aftersales software is currently in development.

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 C432023, 2024Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg C43 4matic2023Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg C63 S E2024Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg Cle532024Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg E 53 4matic+ Wagon2025Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg E53e2023Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg Glc432024Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg Glc43 4matic Coupe2024, 2025Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg Glc63 S E2025Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg Glc63 S E 4matic+ Coupe2025Ask 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 Gle53 4matic2025Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg Gle53 4matic Coupe2025Ask 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 Gle63 S 4matic Coupe2025Ask for service records and run the exact VIN before purchase.
Mercedes-benzC 3002022-2025Ask for service records and run the exact VIN before purchase.
Mercedes-benzCle 3002023, 2024Ask for service records and run the exact VIN before purchase.
Mercedes-benzCle 4502023, 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 11025150?

Complaint A harsh 5-4 downshift can be felt during deceleration while braking or coasting. It may be mistaken for a hard brake engagement Cause Poor learning of brake B06 adaptation values over time. Remedy Short-term remedy: 1. Perform IPR and follow the instructions. 2. Perform resetting of deceleration values (VGS > Special Procedures > Special procedure > Resetting learned values Deceleration mode) 3. Perform.

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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