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July 2, 2026 Other

We are experiencing intermittent issues when flashing A26/17

Mercedes-Benz technical service bulletin ANN Interm. Issues Flash for 2022-2026 Mercedes-Benz C300, 2025-2026 Mercedes-Benz E350 and 2023-2026 Mercedes-Benz GLC 300 and others.

Bulletin number
ANN Interm. Issues Flash
Component
Electrical system
Summary
We are experiencing intermittent issues when flashing A26/17 - MBUX multimedia system + Instrument cluster (Head unit) when using flashing method ethernet to USB-C. Until further notice, please flash via VCI only.

Owners of these vehicles have filed 109 complaints in the electrical category.

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