MERCEDES-BENZ, MERCEDES-MAYBACH
LI83.30-P-079196
Manufacturer communications
- Publication date
- 2025-04-29
- Received by NHTSA
- 2025-05-02
- NHTSA record numbers
- 11017493
Manufacturer summary
Original wording in English
Complaint Yellow instrument cluster message: "Cooling system fault, operating energy input reduced, service required" Cause Fault code "B3A0077 - The regulation valve in the refrigerant circuit for the battery cooling gets stuck open. The ordered position cannot be achieved" stored. Faulty expansion valve component part Y140/1 Remedy Check the part number of Y140/1. If the vehicle has A 297 830 79 03 or older, replace Y140/1 with A 297 830 89 03 or newer. If the vehicle already has A 297 830 8903, do not replace Y140/1. Please create TIPS case, attach the current quick test and attach picture of the evaporator assembly component part label and a picture of the production date of the EXV Y140/1 (see exampled attached).
Reported code forms
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