Engine Coolant Consumption
NOTE:
Coolant consumption is high (frequent topping up is required)
| TEST RESULTS | ||||
|---|---|---|---|---|
| 0 | PRELIMINARY CHECKS | EVERYTHING OK | PROBLEMS ENCOUNTERED | OPERATION |
| Bleed the air and check that the problem has disappeared. | End of diagnosis | The fault is still present. | Go to Step 1 | |
| 1 | EXPANSION TANK PLUG EFFICIENCY CHECK | EVERYTHING OK | PROBLEMS ENCOUNTERED | OPERATION |
| Check the efficiency of the expansion tank plug using tool n.° 2000030000. | Go to Step 2 | Plug inefficient. | Replace the plug. | |
| 2 | COOLING SYSTEM LEAKAGE CHECK | EVERYTHING OK | PROBLEMS ENCOUNTERED | OPERATION |
| Check the seal of the cooling system | Go to Step 3 | There are engine cooling system leaks. | Proceed as instructed in the table ENGINE COOLANT LEAKS | |
| 3 | CHECK FOR GURGLING | EVERYTHING OK | PROBLEMS ENCOUNTERED | OPERATION |
| Check that no gurgling or oil is present in the coolant reservoir. | Go to Step 4 | Presence of fluid or air bubbles: head gasket damaged. | Replace the damaged gasket. | |
| 4 | CYLINDER HEAD HYDRAULIC SEAL CHECK | EVERYTHING OK | PROBLEMS ENCOUNTERED | OPERATION |
| Check the hydraulic seal of the cylinder head. | Go to Step 5 | Seal not efficient. | Replace the cylinder head | |
| 5 | ENGINE MONOBLOC HYDRAULIC SEAL CHECK | EVERYTHING OK | PROBLEMS ENCOUNTERED | OPERATION |
| Check the hydraulic seal of the engine monobloc | End of diagnosis | Seal not efficient. | Replace the monobloc | |