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October 30, 2026 Over-the-air update

Issue Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, is launching an OTA update to the...

Mercedes-Benz technical service bulletin OTA- SW. Upd. MBUX3.5 for 2024-2027 Mercedes-Benz C300, 2024-2027 Mercedes-Benz E350 and 2024-2027 Mercedes-Benz GLC 300 and others.

Bulletin number
OTA- SW. Upd. MBUX3.5
Component
Electrical system
Summary
Issue Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, is launching an OTA update to the subject vehicles to provide an enhanced user experience. This OTA update includes enhancements to the MBUX voice assistant. Remedy MBUSA will conduct an OTA service campaign. Remote software updates are automatically downloaded and installed in the customer’s vehicle free of charge and do not require a dealer visit.

Owners of these vehicles have filed 67 complaints in the electrical category.

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