NHTSA Service Bulletin 11025534: 2020-2025 Mercedes-benz Amg E 53 4matic+ Wagon
Official manufacturer communication context for 2020-2025 Mercedes-benz Amg E 53 4matic+ Wagon, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.
Reviewed June 2026 from NHTSA manufacturer communication and service bulletin records. Carchieve is independent and not affiliated with any vehicle manufacturer or government agency.
Complaint Vehicle will not start after DC charging Warning in the instrument cluster related to High-voltage on board electrical system The following fault codes related to stuck contactor can be found in the High Voltage Control units : PTCU - N127 (Powertrain control unit) P154900 - There is a warning due to overcurrent in the charging system of the high-voltage electric circuit. P154A00 - There is a warning due to a detected crash event at standstill. P154B00 - There is a warning due to a stuck contactor. DCB223 - N116/5 (Direct current charge connection unit) P0E8929 - The input current of the on-board DC charging connection unit is too high. There is an invalid signal. P2BC500 - The contact ''Positive terminal'' of the contactor in the on-board DC current charge-connection unit is jammed closed P2BCC00 - The contact ''Negative terminal'' of the contactor in the on-board DC current charge-connection unit is jammed closed. Cause Current ripple due to EVSE (Electric Vehicle Supply Equipment) Overcurrent or Overvoltage due to EVSE (Electric Vehicle Supply Equipment) DCB contactors did not open immediately due to welding time at the end of DC charging Remedy Check for a new software availability for DCCU (N116/5 - Direct Current Charge connection Unit). If a new software is available, update the software first. Reset contactor fault through special procedure without password. ( N116/5 >> Special Procedure >> Resetting of contactor fault.) Important Note : Do not replace component DCB (N116/5) If fault codes are not erasable, please raise a TIPS case and send it to HQ.
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
Buyer checklist
- Run the 17-character VIN and confirm the year, make, model, engine and equipment match the listing.
- Check recall campaign pages for safety actions that may require dealer repair.
- Compare this bulletin with common problem pages for the same model and component area.
- Ask the seller or dealer whether the bulletin procedure, update or inspection has already been completed.
- Use the used-car buying checklist and get an independent inspection.
Frequently asked questions
What is NHTSA service bulletin 11025534?
Complaint Vehicle will not start after DC charging Warning in the instrument cluster related to High-voltage on board electrical system The following fault codes related to stuck contactor can be found in the High Voltage Control units : PTCU - N127 (Powertrain control unit) P154900 - There is a warning due to overcurrent in the charging system of the high-voltage electric circuit. P154A00 - There is a warning due.
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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