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April 21, 2025 Service bulletin

Random heating of air conditioning system

Mercedes-Benz technical service bulletin LI83.30-P-079081 for 2022-2025 Mercedes-Benz C300, 2024-2025 Mercedes-Benz E350 and 2023-2025 Mercedes-Benz GLC 300 and others.

Bulletin number
LI83.30-P-079081
Component
Visibility/wiper
Summary
Complaint Random heating of air conditioning system. Cause Temperature sensor in overhead control panel (OCP) delivering incorrect values: The temperature sensor in the overhead control panel is malfunctioning. Fault code B110709 or fault code B11F697 are present in the overhead control panel with the status (active) or (active stored). or The temperature sensor in the overhead control panel measures an incorrect temperature (the temperature value can be checked against the actual value in the overhead control panel) If the above-mentioned fault code is not present, the cause could be malfunction on the air conditioning system. Remedy If one of the above-mentioned fault codes should occur, a TIPS case must be created here. If the above fault codes or actual value differences are present in the OCP - please send the case to the Body/Chassis/ Entertainment inbox. Otherwise, the case must be sent to the HV/LV inbox for support in A/C diagnosis. It is not necessary to replace the overhead control panel

Owners of these vehicles have filed 54 complaints in the visibility category.

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