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June 16, 2025 Service bulletin

Check engine light with fault code P300E55 with H12 Complaint The check engine light is activated,...

Mercedes-Benz technical service bulletin LI14.20-N-079253_3 for 2021-2024 Mercedes-Benz Sprinter 2500, 2021-2024 Mercedes-Benz Sprinter 3500 and 2021-2024 Freightliner Sprinter 2500 and others.

Bulletin number
LI14.20-N-079253_3
Component
Engine
Summary
Check engine light with fault code P300E55 with H12 Complaint The check engine light is activated, accompanied by the following fault code related to the Exhaust gas recirculation cooler (low pressure): •P300E55 The efficiency of component 'Exhaust gas recirculation cooler (low pressure)' is not sufficient. Cause The issue is attributed to an error in the coding of the climate control unit software (HVAC177). Remedy Software Update Instructions Please proceed as follows for the different variants:

Owners of these vehicles have filed 25 complaints in the engine category.

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