# P300E on the 2024 Freightliner Sprinter

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

This code is specific to a manufacturer and is not described here.

## Bulletins for this model year that name P300E

- [11028120](https://open.wenmarpro.com/bulletins/11028120), 2026-02-03: Complaint The check engine light is on, with a possibility in a reduction of power, with no soot present in the exhaust system. Fault codes: P300E5F The fill level of the diesel particulate filter is too high. \(Early warning\) P300E5E The fill level of the diesel particulate filter is too high. Regeneration of the diesel particulate filter is disabled. Additional information: No additional fault codes related to the Diesel Particulate Filter \(DPF\) system or the Exhaust Gas Recirculation \(EGR\) system may be present for this LI to apply. Cause These fault codes may be triggered due to unfavorable driving conditions, such as: •Frequent short\-distance trips •Extended idle periods •Infrequent highway driving •Incomplete regeneration cycles These conditions can lead to excessive soot accumulation in the Diesel Particulate Filter \(DPF\), resulting in elevated fill levels and regeneration lockout.
- [11019964](https://open.wenmarpro.com/bulletins/11019964), 2025-07-01: 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:
- [11018921](https://open.wenmarpro.com/bulletins/11018921), 2025-06-03: 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 A software update to correct the coding error is currently in the process of release for the Aftersales network. In the interim, please proceed as follows: •Erase the fault memory \(DTCs\) from the control unit. •Return the vehicle to the customer. •No further diagnostic or repair procedures are required at this time.