CLAAS 773Ch – Claas Eng A15 Engine Module: High Average Temperature of Cooled Exhaust Gases

The engine module detects that the average temperature of cooled exhaust gases is excessively high. As a result, the engine power is reduced by 20% per minute until it reaches 50% of its nominal power. Power is recovered at a rate of 20% per minute once the issue is resolved.

1. 1

   The cooled exhaust gas temperature sensor (B221)

2. 2

   The coolant level

3. 3

   The coolant thermostat

4. 4

   The exhaust gas recycling cooler

1. 1

   Inspect the cooled exhaust gas temperature sensor (B221)

   Verify that the sensor is properly installed and functioning. Check for any signs of damage or contamination.

2. 2

   Check the coolant level

   Ensure that the coolant level is within the recommended range. Top up if necessary.

3. 3

   Inspect the coolant thermostat

   Verify that the thermostat is operating correctly and is not stuck in the closed position.

4. 4

   Examine the exhaust gas recycling cooler

   Check for any blockages, leaks, or damage that could affect its cooling performance.