Kubota E:9115 – Engine ECU: Engine overheat warning and Emission level caution

The engine is experiencing an overheating condition. As a protective measure to manage emissions and prevent severe engine damage, the Engine Control Unit (ECU) commands the Exhaust Gas Recirculation (ECR) valve to begin closing, which disables the EGR system's normal functionality. Engine output and acceleration may also be limited.

• SSV65
• SSV75
• SVL65-2
• SVL75
• SVL75-2
• SVL75-3
• SVL90-2
• SVL95-2s
• SVL97-2
• SVL97-3

1. 1

   Check the coolant temperature gauge on the instrument panel to confirm if it is near the [H] (Hot) mark, indicating active overheating.

2. 2

   Visually inspect the front grill, radiator, and oil cooler for airflow restrictions such as heavy soiling, grease, dust, or grass.

3. 3

   Ensure the engine coolant is at the proper level in the overflow reservoir and radiator (only check when the engine is cool).

1. 1

   Discontinue the Job

   Immediately interrupt your work.

2. 2

   Cool Down the Engine

   Reduce the engine RPM to idle. Do not shut the engine off immediately when it is extremely hot; let it idle to circulate coolant and reduce the temperature gradually.

3. 3

   Clear Blockages

   Once the engine is turned off and safe to work around, thoroughly clean the grill, radiator, and oil cooler of any debris or clogs.

4. 4

   Test Operation

   Restart the machine and monitor the coolant temperature gauge.

5. 5

   Address Mechanical Failures

   If the radiator is clean and coolant levels are full but the machine still overheats and throws code E:9115, the issue is likely a stuck thermostat, a failing water pump, or a faulty coolant temperature sensor.

6. 6

   Replace Faulty Components

   Drain the coolant, replace the thermostat or temperature sensor, refill the system, and bleed any air.

7. 7

   Dealer Intervention

   If the 'E:9115' code still appears after clearing the coolers and checking the gauge, you must immediately contact your local dealer for advanced ECU diagnostics.