16 · Diagnostics

S75 Noisy sunroof with sunroof open

Fault diagnosisS75 Noisy sunroof with sunroof open

While driving with the roof fully open, noise can be heard from the sun-roof area

Step	Test procedure	Result	Action
0	PRELIMINARY CHECKS Check that the noise can heard only when the sun-roof is open	OK	Move onto step 1
		The noise can be heard when the roof is closed	Move onto step (see S76)
		The noise can be heard when the roof is tilted open	Move onto step (see S77)
1	CHECKING SUN-ROOF FASTENINGS Check that the following are fixed correctly: sun-roof glass to the slides roof mechanism assembly to the body	OK	Move onto step 2
1		Faulty fastenings	Repair the fastening of the entire mechanism Op. 7030B14 Repair the roof fastening Op. 7030B12 End of diagnosis
2	CHECKING SUN-ROOF CONTROL DEVICES Check sun-roof operating devices are working properly: with the roof tilted open, ensure the rubber pads on the rear parts of the slides are present with the roof tilted open, check the end stop springs and central channel slides are undamaged and properly fastened with the roof fully open, check the spoiler rubber end stop pads are undamaged and properly fastened	OK	Move onto step 3
		Faulty fastenings	Repair all components and refasten the entire mechanism (see Assembly 7030B) End of diagnosis
		Faults in sun-roof opening devices	Replace the components concerned (see Assembly 7030B) End of diagnosis
3	CHECK CORRECT OPERATION Check that the fault is no longer present	OK	End of diagnosis
3		Fault persists	Incorrect selection of diagnostic procedure

Parts & tools for this job For 1997 Alfa Romeo 156

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