3233024 - D36 ENGINE COOLANT OVERHEATING SIGNALLED BY THE INSTRUMENT / WITH VISIBLE VAPOUR VENTING
-| Results of the tests | ||||
| 0 | PRELIMINARY CHECKS | All OK | Problems met | Operation |
|---|---|---|---|---|
Preliminarily check:
| Continue to Step 1 | Level not correct | Top up level | |
| Leaks detected | Move on to the step concerned | |||
| Leaks detected | Replace the cylinder head gasket | |||
| Leaks detected | Reaplce the radiator | |||
| Leaks detected | Clean/wash the radiator Op. 1088A20 | |||
| 1 | CAP SEAL CHECK | All OK | Problems met | Operation |
| Check the seal of the expansion tank cap | Continue to Step 2 | Cap defective | Replace the cap | |
| 2 | CHECKING WITH DIAGNOSTIC EQUIPMENT | All OK | Problems met | Operation |
Connect the diagnostic equipment (Examiner or other instruments) to the diagnostic socket.
| Continue to Step 5 | There are errors in the control unit | Continue according to the instructions for the diagnostic equipment | |
| There are errors in the control unit | Continue to Step 3 | |||
| 3 | ENGINE COOLING ELECTRICAL CIRCUIT CHECK | All OK | Problems met | Operation |
| Check that the fan control/power line is working properly See E5020 ENGINE COOLING | Continue to Step 4 | Connections not correct | Restore the connections See E5020 ENGINE COOLING | |
| 4 | FAN OPERATION CHECK | All OK | Problems met | Operation |
| Supply the fan directly and check its operation See E5020 ENGINE COOLING | Continue to Step 5 | Fan not working | Replace the fan Op. 1088E10 | |
| 5 | THERMOSTAT OPERATION CHECK | All OK | Problems met | Operation |
| Bleed the cooling system.Check that the thermostat is working properly | Continue to Step 6 | Thermostat not working | Replace the thermostat Op. 1088C10 | |
| 6 | CHECK ON WATER PUMP | All OK | Problems met | Operation |
| Check that the water pump is working properly | Continue to Step 7 | Pump faulty | Replace the pump Op. 1088C10 | |
| 7 | COOLING SYSTEM LEAKAGE CHECK | All OK | Problems met | Operation |
| Carry out the cooling system leak test Op. 0510C30 | Continue to Step 10 | No seal with visible leaks | Eliminate the leaks | |
| No seal without visible leaks | Continue to Step 8 | |||
| 8 | HEAD HYDRAULIC LEAKAGE TEST | All OK | Problems met | Operation |
| Check the hydraulic seal of the cylinder head Op. 1016E04 | Continue to Step 9 | Seal ineffective | Renew the seal, if necessary replace the head | |
| 9 | MONOBLOCK HYDRAULIC SEAL TEST | All OK | Problems met | Operation |
| Check the hydraulic seal of the monobloc | Continue to Step 10 | Seal ineffective | Renew the seal, if necessary replace the engine block | |
| 10 | CHECK ON CORRECT OPERATION | All OK | Problems met | Operation |
| Check that the fault is no longer present. | End of diagnosis | Fault persists | Search for the fault starting from another symptom' | |