2427547 - K29 ENGINE COOLANT OVERHEATING SIGNALLED BY INSTRUMENT - WITH VAPOURS VISIBLE

.
Results of the tests
1CHECK ON RADIATORAll OKProblems metOperation
1.3 JTD

Check the condition of the radiator. In particular:

  • There should not be distortions or irregularities;
  • There should not be dirt
Continue to Step 2Radiator distortedReaplce the radiator Op.   1088B20 
Radiator dirtyClean the radiator
1.3 JTD

Check the condition of the radiator. In particular:

  • There should not be distortions or irregularities
  • There should not be dirt
Continue to Step 2Radiator distortedReaplce the radiator Op. 1088B24
Radiator dirtyClean the radiator
2THERMOSTAT OPERATION CHECKAll OKProblems metOperation
Check that the thermostat is working properlyContinue to Step 3Thermostat not workingBleed the cooling system. If the problem persists, replace the thermostat Op.   1088C30 
3FAN ACTIVE DIAGNOSISAll OKProblems metOperation
Connect the diagnostic equipment (Examiner or other instruments) to the diagnostic socket.Carry out the active diagnosis for the fansContinue to Step 4Fans not workingContinue to Step 5
4CHECK ON WATER PUMPAll OKProblems metOperation
1.3 JTDCheck that the water pump is working properlyContinue to Step 11Pump faultyRestore the correct operation of the pump. If necessary, replace it Op.   1088C10 
1.3 JTDCheck that the water pump is working properlyContinue to Step 11Pump faultyRestore the correct operation of the pump. If necessary, replace it Op. 1088C12
5FAN OPERATION CHECKAll OKProblems metOperation
Supply the fans directly and check their operation See   E5020  ENGINE COOLING Continue to Step 6Fans not workingReplace the fans Op.   1088E10 
6ENGINE COOLING ELECTRICAL CIRCUIT CHECKAll OKProblems metOperation
1.2 8v 1.2 16v 1.4 16vCheck that the line between the engine management and the fans is working properly See   E5020  ENGINE COOLING Continue to Step 11Control unit faultPrint the parameters read by the control unit, then replace it Op.   1056B82 
Connections not correctRestore the connections See   E5020  ENGINE COOLING
1.3 JTDCheck that the line between the engine management and the fans is working properly See   E5020  ENGINE COOLING Continue to Step 11Control unit faultPrint the parameters read by the control unit, then replace it Op.   1060G80 
Connections not correctRestore the connections See   E5020  ENGINE COOLING
7COOLING SYSTEM LEAKAGE CHECKAll OKProblems metOperation
Carry out the cooling system leak test Op.   0510C30  Continue to Step 8Coolant leaks detectedContinue according to the instructions for the See table   X10  ENGINE COOLANT LEAKS
8BUBBLING CHECKAll OKProblems metOperation
1.3 JTDCheck that there fluid in the coolant reservoir is not bubblingContinue to Step 9Presence of fluid bubbling: cylinder head gasket damagedReplace the seal Op.   1016C10 
1.3 JTDCheck that there fluid in the coolant reservoir is not bubblingContinue to Step 9Presence of fluid bubbling: cylinder head gasket damagedReplace the seal Op. 1016C11
9HEAD HYDRAULIC LEAKAGE TESTAll OKProblems metOperation
Check the hydraulic seal of the cylinder headContinue to Step 10Seal ineffectiveReplace the cylinder head Op.   1016C10 
10MONOBLOC HYDRAULIC SEAL TESTAll OKProblems metOperation
Check the hydraulic seal of the monoblocContinue to Step 11Seal ineffectiveReplace engine block Op. 1012A10
11CHECK ON CORRECT OPERATIONAll OKProblems metOperation
Check that the fault is no longer present End of diagnosis.