NHTSA Service Bulletin 11026030: 2022-2026 Mercedes-benz Amg Gt43
Official manufacturer communication context for 2022-2026 Mercedes-benz Amg Gt43, 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 Discharge of 12 V battery in the event of a longer non-operational time - model series 232 and model series 192 Cause Increased quiescent current Remedy 1. Conduct quiescent current measurement. DO NOT USE A DVOM IN LINE - this will blow the fuse in your meter. Use an amp clamp with either a DVOM or XENTRY Scope and wait until the vehicle has gone to sleep (usually takes 6-10 minutes). Once the vehicle is asleep, observe the quiescent current for 10-15 minutes and note down the values. A stable quiescent current should be less than 50 mA. Values higher than this figure are considered not OK (NOK) and require further analysis. 2. If the quiescent current is higher (> 50 to 100 mA): Check whether software updates are available for relevant control units: Door control units (DMD (N69/1), DMP (N69/2), DMRL (N69/3), DMRR (N69/4)), EIS (N73/3), PTCU (N127), OHCM (N70), GW (N73/3*1) After installing the updates: measure the quiescent current again If the quiescent current is < 50 mA, the vehicle is OK If the quiescent current is between 50 and 100 mA, continue with step 5 If the quiescent current is between 100 and 200 mA, continue with step 3 If the quiescent current is between 200 mA and 1 A, continue with step 4 3. For no-load current values of 100 to 200 mA: Lock all doors and hood so that the control unit recognizes the door status as "closed" but the doors are open. Disconnect door separation points (A-pillar connection) when the vehicle is asleep, starting with the driver's side Document the quiescent current value If there is no change: Disconnect the door separation point on the front passenger side and note down the value again If the quiescent current falls below 50 mA after the door separation point is opened, the respective outer door handle must be replaced If the quiescent current remains low after the relevant door handles have been successfully replaced, please create a TIPS case to the LV/HV inbox and retain the removed door handles for the time being If the quiescent current does not change after the door separation point is opened, please carry out step 5 4. For quiescent current values between 200 mA and 1 A: Important: Before pulling out F320 and F304, the tow-away protection and interior protection must be deactivated to prevent an alarm from triggering Lock all doors and hood so that the control unit recognizes the door status as "closed" but the doors are open. Wait until the vehicle has gone to sleep Pull out the fuses one after the other, starting with F323 (PTCU CU/N127), and note down the quiescent current value Perform the same test one at a time if the value is still high for each additional fuse: F119 (PTCU CU/N127), F324 (EIS CU/N73/3), F305 (EIS CU/N73/3), F320 (OCP CU/N70), F304 (OCP CU/N70) If pulling out the fuse reduces the quiescent current to below 50 mA, it must be replaced. After replacing the fuse, please measure and assess the quiescent current again Please create a TIPS case for information purposes If the quiescent current remains unchanged after the fuses listed above are pulled out, please carry out step 5 5. If the quiescent current remains above 50 mA after all controls have been implemented: Create a TIPS case Document all the completed steps and measurement results Attach the XENTRY Scope trace of the draws that you have seen and identify where certain steps were taken. Attach the latest N73 and N73/3*1 CUL's If the quiescent current is higher than 1 A, the bus keep awake control unit should be identified via the EIS gateway
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 11026030?
Complaint Discharge of 12 V battery in the event of a longer non-operational time - model series 232 and model series 192 Cause Increased quiescent current Remedy 1. Conduct quiescent current measurement. DO NOT USE A DVOM IN LINE - this will blow the fuse in your meter. Use an amp clamp with either a DVOM or XENTRY Scope and wait until the vehicle has gone to sleep (usually takes 6-10 minutes). Once the vehicle is.
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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