Check a VIN

October 22, 2025 Service bulletin

Check engine light with fault code P3005CA in MRD1 (CDI) Complaint: The check engine light is on, with a...

Mercedes-Benz technical service bulletin LI49.20-N-078466 for 2023-2025 Mercedes-Benz Sprinter 2500, 2023-2025 Mercedes-Benz Sprinter 3500 and 2023-2024 Freightliner Sprinter 2500 and others.

Bulletin number
LI49.20-N-078466
Component
Engine
Summary
Check engine light with fault code P3005CA in MRD1 (CDI) Complaint: The check engine light is on, with a possiblility in a reduction of power and the presence of soot in the exhaust system. Fault code P3005CA: The diesel particulate filter efficiency is insufficient. Cause: This fault code sets due to the following factors: 1. Damage to the Diesel Particulate Filter (DPF) unit. 2. The N74 (Soot Particulate Sensor Control Unit) identifies soot or debris located downstream of the SCR Catalyst (underbody).

Owners of these vehicles have filed 9 complaints in the engine category.

Vehicles covered

VIN decoder

See the problems and recalls for an exact car

Buying a used Mercedes-Benz Sprinter 2500?

Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.

Check its history