NHTSA service bulletin

NHTSA Service Bulletin 11012788: 2022-2024 Mercedes-benz Amg Eqe

Official manufacturer communication context for 2022-2024 Mercedes-benz Amg Eqe, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.

NHTSA service bulletin 11012788 summary graphic for 2022-2024 Mercedes-benz Amg Eqe
11012788NHTSA document ID
Manufacturer communicationcommunication type
13affected 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 Red warning message in instrument cluster: "Towing not allowed, see Operator's Manual, consult workshop without starting the engine again". Cause Missing diaphragm on high voltage PTC (interior heating) N33/14 component part results in moisture buildup in the installation space for the heater and causes an insulation fault. The entry of moisture into the high voltage PTC (interior heating) N33/14 in the high voltage wiring harness to the DC/DC converter N83/1 causes a slow-acting insulation fault. This may occur sporadically only to start with before actively developing over time. Remedy Exchange high voltage PTC (interior heating) N33/14 with new part with diaphragm (production date as from 22T231, see component part label). If necessary, and after further testing/measurement, replace wiring harness for DC/DC converter N83/1 to high voltage PTC (interior heating) N33/14. Note: According to the Replacement Parts Department only high voltage PTCs (interior heating) with a diaphragm and with production date as from 22T231 are available!

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 Eqe2023, 2024Ask for service records and run the exact VIN before purchase.
Mercedes-benzEqe 350 4matic2024Ask for service records and run the exact VIN before purchase.
Mercedes-benzEqe 350+2023, 2024Ask for service records and run the exact VIN before purchase.
Mercedes-benzEqe 5002023, 2024Ask for service records and run the exact VIN before purchase.
Mercedes-benzEqs 450+2022-2024Ask for service records and run the exact VIN before purchase.
Mercedes-benzEqs 5802023Ask for service records and run the exact VIN before purchase.
Mercedes-benzEqs SUV 450 4matic2023, 2024Ask for service records and run the exact VIN before purchase.
Mercedes-benzEqs SUV 450+2023, 2024Ask for service records and run the exact VIN before purchase.
Mercedes-benzEqs SUV 580 4matic2023, 2024Ask for service records and run the exact VIN before purchase.
Mercedes-benzRedundant Eqe 3502024Ask for service records and run the exact VIN before purchase.
Mercedes-benzRedundant Eqe 350 4matic2023Ask for service records and run the exact VIN before purchase.
Mercedes-benzRedundant Eqs 4502023, 2024Ask for service records and run the exact VIN before purchase.
Mercedes-maybachEqs SUV 680 4matic2024Ask 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 11012788?

Complaint Red warning message in instrument cluster: "Towing not allowed, see Operator's Manual, consult workshop without starting the engine again". Cause Missing diaphragm on high voltage PTC (interior heating) N33/14 component part results in moisture buildup in the installation space for the heater and causes an insulation fault. The entry of moisture into the high voltage PTC (interior heating) N33/14 in the.

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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