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January 2, 2024 Service bulletin

No audio is output either in radio mode, or with media playback via app, Bluetooth or USB. In such cases,...

Mercedes-Benz technical service bulletin LI82.62-P-077311 for 2022-2024 Mercedes-Benz C300, 2023-2024 Mercedes-Benz GLC 300 and 2022-2023 Mercedes-Benz EQS 450 and others.

Bulletin number
LI82.62-P-077311
Component
Electrical system
Summary
No audio is output either in radio mode, or with media playback via app, Bluetooth or USB. In such cases, "Playback not active" is shown in the display. Mute line between communication module N112/2 and sound control unit N40/3. Check mute cable (violet) between control units for communication module N112/2 and sound N40/3, including plug contacts, and repair or replace as necessary. If the plug contact is deformed, it is imperative that its counterpart at the control unit is also checked.

Owners of these vehicles have filed 123 complaints in the electrical category.

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