X08 ENGINE COOLANT CONSUMPTION - Alfa - 147 - eLearn

The coolant consumption is high (it needs topping up frequently)

0	PRELIMINARY CHECKS	All OK	Problems met	Operation
		Results of the tests
	First visually inspect the cooling system to check that there are no coolant leaks.	Continue to Step 1	There are leaks	Continue as instructed in the Table See table X10 ENGINE COOLANT LEAKS
1	COOLING SYSTEM LEAKAGE CHECK	All OK	Problems met	Operation
	Connect the test equipment replacing the expansion tank cap, pressurize the system to a value of slightly below 1.4 bar and check that the pressure remains at the recommended value for a few minutes and that there are no visible leaks.	Continue to Step 3	Fall in pressure detected with no visible leaks	Continue to Step 2
		Continue to Step 3	Fall in pressure detected with visible leaks	Continue as instructed in the Table See table X10 ENGINE COOLANT LEAKS
2	CHECKING CYLINDER HEAD	All OK	Problems met	Operation
	Remove the head. Check: That the planarity of the cylinder head plane is correct That the planarity of the cylinder head support surface on the cylinder block is correct;	Continue to Step 3	Cylinder head plane defective	Regrind the cylinder head plane
			Cylinder block/crankcase plane defective	Regrind the cylinder block/crankcase plane
			Planes correct, head gasket faulty	Replace the cylinder head gasket
3	CHECK ON CORRECT OPERATION	All OK	Problems met	Operation
	Check that the fault is no longer present	End of diagnosis