NHTSA service bulletin

NHTSA Service Bulletin 11018032: 2022-2025 Mercedes-benz Amg C43

Official manufacturer communication context for 2022-2025 Mercedes-benz Amg C43, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.

NHTSA service bulletin 11018032 summary graphic for 2022-2025 Mercedes-benz Amg C43
11018032NHTSA document ID
Manufacturer communicationcommunication type
19affected product rows
19source 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 In vehicles with the MBUX multimedia system Gen20x.i2 without premium sound system and external amplifier, the sound does not meet the customer's expectations. Changing the sound settings, for example for the bass, does not provide the desired effect. Cause Sound parameter software in the A26/17 - MBUX multimedia system + Instrument cluster (Head unit) control unit Remedy For vehicles with standard sound and Midline sound system (code 853), new sound parameters are available. V/X 254: A 254 903 94 03 C 254: A 254 903 97 03 V/W 206: A 206 903 20 04 S 206: A 206 903 21 04 A/C 236: A 236 903 86 01 V/W 214: A 214 903 19 03 S 214: A 214 903 20 03 To update the sound parameters, please perform an update to the software for the A26/17 - MBUX multimedia system + Instrument cluster (Head unit) control unit.

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 Glc432024Ask 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-benzC 3002022-2025Ask for service records and run the exact VIN before purchase.
Mercedes-benzCle 3002024Ask for service records and run the exact VIN before purchase.
Mercedes-benzCle 4502024Ask for service records and run the exact VIN before purchase.
Mercedes-benzE 3502024, 2025Ask for service records and run the exact VIN before purchase.
Mercedes-benzE 350 4matic2025Ask for service records and run the exact VIN before purchase.
Mercedes-benzE 4502024Ask for service records and run the exact VIN before purchase.
Mercedes-benzE 450 4matic2025Ask for service records and run the exact VIN before purchase.
Mercedes-benzE 450 4matic All-terrain2025Ask for service records and run the exact VIN before purchase.
Mercedes-benzGlc 3002023-2025Ask for service records and run the exact VIN before purchase.
Mercedes-benzGlc 300 Coupe2024Ask 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 11018032?

Complaint In vehicles with the MBUX multimedia system Gen20x.i2 without premium sound system and external amplifier, the sound does not meet the customer's expectations. Changing the sound settings, for example for the bass, does not provide the desired effect. Cause Sound parameter software in the A26/17 - MBUX multimedia system + Instrument cluster (Head unit) control unit Remedy For vehicles with standard sound.

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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