Mercedes-Benz EQB 250+ 2022–2023 — technical service bulletin
Bulletin LI08.20-P-077050 · NHTSA communication 10244642 · issued Oct 30, 2023
Technical service bulletin
communication type
Engine and Engine Cooling
component
2022–2023
model years
4
vehicle entries
Official summary
Diverse fault messages in the instrument cluster The fault code P061AE9 is set if the N129/2 power electronics detects an undervoltage when the vehicle is in the unlocked state. If the pre-entry climate control starts or the ignition is switched on with the charging cable plugged in when the fault occurs, fault messages appear in the Instrument cluster. The software update for N129/2 Power electronics is available for the US market. Please perform software update on power electronics control unit N129/2. If the fault code returns after Software update, please open up a tips case.
Vehicles covered
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.