NHTSA service bulletin

NHTSA Service Bulletin 11010918: 2019 Mercedes-benz S 450

Official manufacturer communication context for 2019 Mercedes-benz S 450, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.

NHTSA service bulletin 11010918 summary graphic for 2019 Mercedes-benz S 450
11010918NHTSA document ID
Service campaigncommunication type
5affected product rows
5source 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

Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 2019 S-Class (217 & 222 platform), the software for the engine control unit does not correspond to the current series production configuration and may cause misfire, resulting in the activation of Malfunction Indicator Lamp (MIL). An authorized Mercedes-Benz dealer will perform the engine control unit software update. Prior to performing this Campaign: VMI must always be checked before performing campaigns to verify that the campaign is required on a specific vehicle. Always check for any other open campaigns and perform accordingly. Please review the entire Campaign bulletin and follow the repair procedure exactly as described. Update Engine Control Unit Software Models 217 and 222 Always use the latest XENTRY Diagnosis software release with all available add-ons. Follow the operation steps exactly as described in XENTRY Diagnosis. Use a charger to ensure sufficient power supply to the vehicles on-board electrical system battery (greater than 12.5 V). If XENTRY Diagnosis is already connected to the vehicle, start with Work Procedure Step 2. If two or more software updates or SCN codings are performed during a single workshop visit, operation items 02-4762 and 02-5058 may be invoiced only on one of the workshop orders. Work Procedure 1. Connect XENTRY Diagnosis. 2. Update Engine Control Unit software. To do this, select menu item "Quick test view N3/10 - Motor electronics MED1775 for combustion engine M176 (ME) Adaptations Control unit update Updating of the control unit software." Then follow the user guidance in XENTRY Diagnosis. 3. Disconnect XENTRY Diagnosis.

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-benzS 4502019Ask for service records and run the exact VIN before purchase.
Mercedes-benzS 5502019Ask for service records and run the exact VIN before purchase.
Mercedes-benzS 560 E2019Ask for service records and run the exact VIN before purchase.
Mercedes-maybachS 560 4matic2019Ask for service records and run the exact VIN before purchase.
Mercedes-maybachS 6502019Ask 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 11010918?

Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 2019 S-Class (217 & 222 platform), the software for the engine control unit does not correspond to the current series production configuration and may cause misfire, resulting in the activation of Malfunction Indicator Lamp (MIL). An authorized Mercedes-Benz dealer will perform the engine control unit software update..

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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