Mercedes-Benz EQB 250+ 2022–2025 — technical service bulletin
Bulletin LI54.10-P-080004 · NHTSA communication 11026830 · issued Dec 18, 2025
Technical service bulletin
communication type
Electrical System
component
2022–2025
model years
11
vehicle entries
Official summary
Complaint • Vehicle cannot be started • Warning in the instrument cluster related to High-voltage on board electrical system • The following fault codes related to interlock can be found in the High Voltage Control units : • PTCU (N127) : P154700 - There is a warning due to a detected fault in the interlock circuit. • BMS (N82/9) : P0A0B00 - The interlock circuit of the high-voltage on-board electrical system has a malfunction. P0A0D00 - The interlock circuit of the high-voltage on-board electrical system has a short circuit to positive. • DCB (N116/5): P0A0A00 - The interlock circuit of the h
Vehicles covered
- 2023 Mercedes-Benz EQB 250+
- 2024 Mercedes-Benz EQB 250+
- 2025 Mercedes-Benz EQB 250+
- 2022 Mercedes-Benz EQB 300 4MATIC
- 2023 Mercedes-Benz EQB 300 4MATIC
- 2024 Mercedes-Benz EQB 300 4MATIC
- 2025 Mercedes-Benz EQB 300 4MATIC
- 2022 Mercedes-Benz EQB 350 4MATIC
- 2023 Mercedes-Benz EQB 350 4MATIC
- 2024 Mercedes-Benz EQB 350 4MATIC
- 2025 Mercedes-Benz EQB 350 4MATIC
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.