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Alfa Romeo 147 Factory Service Manual (2000-2002)18 · Fault diagnosis

18 · Diagnostics

X08 Excessive engine coolant consumption

Make: Alfa Romeo
Model: 147 Factory Service Manual
Year: 2000–2002
Section: Consumption / leaks / wear › X08 Excessive engine coolant consumption

‹ Prev X05 Excessive oil consumption Next › X10 Engine coolant leaks

Fault diagnosisX08 Excessive engine coolant consumption

X08 Excessive engine coolant consumption

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

Step	Test procedure	Result	Action
0	PRELIMINARY CHECKS Bleed the air and check that the fault no longer occurs Check whether there is white smoke in the exhaust	OK	Incorrect selection of diagnostic procedure
		The fault is still present	Move onto step 1
		There is white smoke in the exhaust	Move onto step 4
1	CAP EFFICIENCY CHECK Check the efficiency of the cap	OK	Move onto step 2
1	CAP EFFICIENCY CHECK Check the efficiency of the cap	Cap not working properly	Replace the cap End of diagnosis
2	SYSTEM LEAKAGE CHECK Carry out the cooling system leak test Op. 0510C30	OK	Move onto step 3
2		There are coolant leaks	See table X10 ENGINE COOLANT LEAKS End of diagnosis
3	BUBBLING CHECK Check that there are no bubbles or oil in the coolant reservoir	OK	Move onto step 4
3		Fluid or bubbles: head gasket damaged	Replace the gasket Op. 1010C10 End of diagnosis
4	CYLINDER HEAD HYDRAULIC SEAL CHECK Check the hydraulic seal of the cylinder head	OK	Move onto step 5
4		Seal insufficient	Replace the cylinder head End of diagnosis
5	ENGINE MONOBLOC HYDRAULIC SEAL CHECK Check the hydraulic seal of the engine monobloc	OK	Move onto step 6
5		Seal insufficient	Replace engine block End of diagnosis
6	CHECK ON CORRECT OPERATION Check that the fault is no longer present	OK	Incorrect selection of diagnostic procedure
6		Fault persists	Incorrect selection of diagnostic procedure

‹ Prev X05 Excessive oil consumption Next › X10 Engine coolant leaks

Parts & tools for this job For 2000 Alfa Romeo 147

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