NHTSA service bulletin

NHTSA Service Bulletin 11021144: 2020-2025 Mercedes-benz Amg A35

Official manufacturer communication context for 2020-2025 Mercedes-benz Amg A35, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.

NHTSA service bulletin 11021144 summary graphic for 2020-2025 Mercedes-benz Amg A35
11021144NHTSA document ID
Manufacturer communicationcommunication type
9affected product rows
9source 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 Vibrations in steering at speeds lower than 50 km/h when turning left and right or while at a stop. May be perceived as a noise from the transmission. Cause Controller instability of steering software, caused by reduced friction in steering (tolerance for production + running-in characteristics). Remedy Update Electrical Power Steering Control Unit (N68) to target software A 247 902 11 16 available in Xentry with latest add-ons.

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 Cla352020-2023Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg Cla452020-2023Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg Gla 352024, 2025Ask 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 Gla452021-2023Ask 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 Glb352021-2025Ask 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 11021144?

Complaint Vibrations in steering at speeds lower than 50 km/h when turning left and right or while at a stop. May be perceived as a noise from the transmission. Cause Controller instability of steering software, caused by reduced friction in steering (tolerance for production + running-in characteristics). Remedy Update Electrical Power Steering Control Unit (N68) to target software A 247 902 11 16 available in.

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.

Get Full Report