125000594 - K29 ENGINE COOLANT OVERHEATING SIGNALLED BY INSTRUMENT - WITH VAPOURS VISIBLE

Results of the tests
1CHECK ON RADIATORAll OKProblems metOperation
2.0 JTS3.2 V61.9 JTD 16VHeater

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.    Op. 1088B20 ENGINE COOLING RADIATOR - R + R
Radiator dirtyClean the radiator
2.0 JTS3.2 V61.9 JTD 16VAir ConditionerThere should not be distortions or irregularitiesThere should not be dirtContinue 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.    Op. 1088C40 THERMOSTAT- R + R
3FAN ACTIVE DIAGNOSISAll OKProblems metOperation
Connect the diagnostic equipment (Examiner Plus or Smart) 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
2.0 JTS3.2 V61.9 JTD 16VHeaterCheck that the water pump is working properlyContinue to Step 11Pump faultyRestore the correct operation of the pump. If necessary, replace it Op.    Op. 1088C10 WATER PUMP - R + R
2.0 JTS3.2 V61.9 JTD 16VAir ConditionerContinue to Step 11Pump faultyRestore the correct operation of the pump. If necessary, replace it Op. 1088C12
5FAN OPERATION CHECKAll OKProblems metOperation
1.9 JTD 16V2.0 JTSSupply the fans directly and check their operation See    See E5020 ENGINE COOLINGContinue to Step 6Fans not workingReplace the fans Op.    Op. 1088E10 RADIATOR COOLING FAN - R + R
3.2 V6Supply the fans directly and check their operation See    See E5020 ENGINE COOLINGContinue to Step 6Fans not workingReplace the fans Op.    Op. 1088E11 FANS WITH SINGLE ENGINE DUCT - R+R
6ENGINE COOLING ELECTRICAL CIRCUIT CHECKAll OKProblems metOperation
1.9 JTD 16VCheck that the line between the engine management and the fans is working properly See    See E5020 ENGINE COOLINGContinue to Step 11Control unit faultPrint the parameters read by the control unit, then replace it Op.    Op. 1060G80 DS ELECTRIC INJECTION CONTROL UNIT - R R
Connections not correctRestore the connections See    See E5020 ENGINE COOLING
2.0 JTSCheck that the line between the engine management and the fans is working properly See    See E5020 ENGINE COOLINGContinue to Step 11Control unit faultPrint the parameters read by the control unit, then replace it Op. 1056F82
Connections not correctRestore the connections See    See E5020 ENGINE COOLING
3.2 V6Check that the line between the engine management and the fans is working properly See    See E5020 ENGINE COOLINGContinue to Step 11Control unit faultPrint the parameters read by the control unit, then replace it Op. 1056B82
Connections not correctRestore the connections See    See E5020 ENGINE COOLING
7COOLING SYSTEM LEAKAGE CHECKAll OKProblems metOperation
Check the cooling system for leaks Op.    Op. 0510C30 COOLING SYSTEM - TIGHTNESS TESTContinue to Step 8Coolant leaks detectedContinue according to the instructions inSee table    See table X10 ENGINE COOLANT LEAKS
8BUBBLING CHECKAll OKProblems metOperation
1.9 JTD 16VCheck that there fluid in the coolant reservoir is not bubblingContinue to Step 9Presence of fluid bubbling: cylinder head gasket damagedReplace the seal Op. 1016B10
2.0 JTSCheck that there fluid in the coolant reservoir is not bubblingContinue to Step 9Presence of fluid bubbling: cylinder head gasket damagedReplace the seal Op.    Op. 1016C10 SINGLE CYLINDER HEAD, REMOVED - OVERHAUL
3.2 V6Check that there fluid in the coolant reservoir is not bubblingContinue to Step 9Presence of fluid bubbling: cylinder head gaskets damagedReplace the gaskets Op. 1016D11
9HEAD HYDRAULIC LEAKAGE TESTAll OKProblems metOperation
1.9 JTD 16V2.0 JTSCheck the hydraulic seal of the cylinder headContinue to Step 10Seal ineffectiveReplace the cylinder head Op. 1016C20
3.2 V6Check the hydraulic seal of the cylinder headsContinue to Step 10Seal ineffectiveReplace the cylinder heads Op. 1016D30
10MONOBLOCK HYDRAULIC SEAL TESTAll OKProblems metOperation
CHECK ON BLOCK HYDRAULIC SEALContinue to Step 11Seal ineffectiveSeal ineffective Op.    Op. 1004E20 ENGINE - DISMANTLE AND RE-BUILD FOLLOWING OPERATION 1004E10 - WASH AND CHECK DISMANTLED PARTS - RE-FIT CYLINDER HEAD AND OIL SUMP - DOES NOT INCLUDE REPAIRS TO CYLINDER HEAD AND AUXILIARY UNIT
11CHECK ON CORRECT OPERATIONAll OKProblems metOperation
Check that the fault is no longer presentEnd of diagnosis.