DPF OFF, EGR OFF URSUS C 380 4.4L

URSUS C 380 4.4L - DPF OFF & EGR OFF

We arrived in Czarnków-Trzcianka County in the Greater Poland Voivodeship, where a URSUS C 380 4.4L powered by a BOSCH EDC17C49 ECU suddenly entered limp mode. The owner reported a sudden power drop that made further efficient work impossible. We performed the necessary electronic diagnostics, detecting stored fault codes related to the emission control systems. We carried out a comprehensive software modification, executing DPF OFF and EGR OFF services, which successfully eliminated the problematic codes.

What causes DPF and EGR failures in the Ursus?

Problems with the DPF and EGR systems in URSUS C 380 4.4L tractors most often stem from harsh agricultural operating conditions, where low exhaust gas working temperatures prevent proper soot burnout. Repeated failed active regeneration cycles lead to rapid clogging of the particulate filter and cause the engine to enter protection mode. Additionally, the exhaust gas recirculation valve gets stuck from carbon deposits, which disrupts the mixture composition and blocks optimal engine operation.

• Unfinished active regeneration: Too low operating temperatures and interrupted soot combustion cycles block the self-cleaning of the filter.

• Clogging of the EGR cooler: Accumulated deposits limit exhaust cooling efficiency and cause faults in the ECU.

• Temperature sensor failure: Incorrect readings from a damaged component completely prevent the burnout procedure from starting.

• EGR valve blocking: Corrosion or carbon buildup causes the component to seize in a partially open position.

How is DPF and EGR deactivation performed in the Ursus C 380 4.4L?

We start with a full diagnostic visit cycle, connecting diagnostic equipment to read fault codes and verify the condition of engine peripherals right at the client's location. Next, we perform precise software editing in the BOSCH EDC17C49 ECU, uploading a custom-tailored file that disables the DPF and EGR procedures. In the subsequent step, we carry out the necessary physical work under the hood and in the exhaust system, which involves removing the DPF filter core and installing a service filter as well as blanking off the EGR valve. We conclude the procedure with a check of proper engine operation.

How much does it cost to remove DPF and EGR faults in the Ursus?

The cost of the service for the URSUS C 380 4.4L model starts from 3500 PLN net. The final price depends on the scope of necessary mechanical work on the exhaust system.

Key Benefits

• Permanent problem solution: Complete elimination of the troublesome limp mode and power limitations.

• Zero downtime: Mobile service performed directly at the client's machine location.

• Operational safety: Improved engine stability under heavy working loads.

• Time savings: Fault removal without the need for bench ECU tuning.

Secure your machine against unexpected downtime in the field:

Phone / Mobile Service: +48 666 300 800

Operating Area: Poland-wide (onsite dispatch to the machine's location)