# Service bulletin LI47.70\-P\-079912

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 11038189
- Published by NHTSA: 2026\-10\-06
- Manufacturer's number: LI47.70\-P\-079912
- Manufacturer's date: 2026\-09\-29
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

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 onboard DC current charge‑connection unit is jammed closed. Instrument cluster warning messages : 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.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11038189-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11038189-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system

## Trouble codes named

P0E89, P1549, P154A, P154B, P2BC5, P2BCC

## Vehicles listed

- 2026 MERCEDES BENZ GLE 450E 4MATIC
- 2025 MERCEDES\-BENZ AMG E 53 E 4MATIC\+
- 2027 MERCEDES\-BENZ AMG E53E 4MATIC
- 2027 MERCEDES\-BENZ AMG E53E 4MATIC WAGON
- 2025 MERCEDES\-BENZ AMG GLC63 S E
- 2025 to 2026 MERCEDES\-BENZ AMG GLC63 S E 4MATIC\+
- 2025 to 2026 MERCEDES\-BENZ AMG GLC63 S E 4MATIC\+ COUPE
- 2024 to 2026 MERCEDES\-BENZ AMG S 63 E 4MATIC\+
- 2025 MERCEDES\-BENZ E53 E 4MATIC\+
- 2026 MERCEDES\-BENZ E53 E 4MATIC\+ ALL\-TERRAIN
- 2025 to 2027 MERCEDES\-BENZ GLC 350 E 4MATIC
- 2024 to 2025 MERCEDES\-BENZ GLE 450E 4MATIC
- 2023 MERCEDES\-BENZ S 580 E
- 2023 to 2026 MERCEDES\-BENZ S 580 E 4MATIC

JSON: [/v1/bulletins/11038189](/v1/bulletins/11038189)

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