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Alfa Romeo 156 Factory Service Manual (1997-2002)16 · Fault diagnosis

16 · Diagnostics

X30 Power steering system leaks

Make: Alfa Romeo
Model: 156 Factory Service Manual
Year: 1997–2002
Section: Consumption / leaks / wear › X30 Power steering system leaks

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Fault diagnosisX30 Power steering system leaks

X30 Power steering system leaks

A (red coloured) fluid leak from the power assisted steering system can be seen.

Step	Test procedure	Result	Action
0	PRELIMINARY CHECKS Check whether the problem is accompanied by a stiffening of the steering or noise from the steering Visually inspect the level of the power steering fluid in the reservoir	OK	Move onto step 1
		Power steering fluid level too low	Restore the correct level and carry out a road test. If the defect persists, Move onto step 1
		Stiffening of the steering detected	Move onto step (see H10)
		Noise from the steering detected	Move onto step (see S40)
1	RESERVOIR LEAK CHECK Visually check that there are no leadks from the power assisted steering fluid reservoir	OK	Move onto step 2
1		Leaks from the reservoir	Replace the reservoir Op. 4110B10 End of diagnosis
2	PIPE CHECK Visually check, using talc, that there are no leaks from the connectors for all the power assisted steering system pipes, flexible and rigid.	OK	Move onto step 3
2		Leaks from the system	Tighten the connectors or replace the damaged parts, replacing all the seals (see Assembly 4130B) End of diagnosis
3	STEERING BOX CHECK Visually check that there are no leaks (using talcum powder): from the rigid pipes at the steering box and attachments from the steering box lower plug from the steering column attachment from the actual steering box	OK	Move onto step 4
		Leaks from the rigid pipes	Tighten the connectors or replace the steering box Op. 4130A10 End of diagnosis
		Leaks from the lower plug	Eliminate the leak using sealant, or replace the steering box Op. 4130A10 End of diagnosis
		Leaks from the steering column attachment or from the actual steering box	Replace the steering box Op. 4130A10 End of diagnosis
4	STEERING BOX BOOTS CHECK Inspect the steering box boots and check that there is no fluid	OK	Move onto step 5
4		Leaks from the steering box seals	Replace the steering box Op. 4130A10 End of diagnosis
5	CHECK CORRECT OPERATION Check that the fault is no longer present	OK	End of diagnosis
5		Fault persists	Incorrect selection of diagnostic procedure

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Parts & tools for this job For 1997 Alfa Romeo 156

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