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December 15, 2025 Service bulletin

The complaint reported is that the driver display shows the message “Frunk open” although it is closed

Mercedes-Benz technical service bulletin LI54.30-P-080136 for 2026 Mercedes-Benz Cla 250+ (EV) and 2026 Mercedes-Benz Cla 350 4matic (EV).

Bulletin number
LI54.30-P-080136
Component
Electrical system
Summary
Complaint The complaint reported is that the driver display shows the message “Frunk open” although it is closed. No damage is present on the lock. The problem may occur in the following scenario: 1. Ignition on/vehicle ready to drive 2. Frunk is unlocked 3. Ignition is switched off 4. Frunk is closed. Cause After the ignition is switched off, the head unit CIVIC174 does not register that the frunk is closed. -> Software A26/17 Head Unit (CIVIC174) Remedy SW solution is being worked on. In the event of a problem, please open and close the frunk with the ignition switched on.

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