S77 Noisy sunroof with sunroof in quarterlight position

Make: Alfa Romeo
Model: 156 Factory Service Manual
Year: 1997–2002
Section: Noise/vibrations › S77 Noisy sunroof with sunroof in quarterlight position

Fault diagnosisS77 Noisy sunroof with sunroof in quarterlight position

While in motion with the roof tilted open, noise is heard from the sun-roof area

Step	Test procedure	Result	Action
0	PRELIMINARY CHECKS Check that the noise is heard only with the roof tilted open	OK	Move onto step 1
		The noise is heard with the roof open	Move onto step (see S75)
		The noise is heard with the roof closed	Move onto step (see S76)
1	CHECKING SUN-ROOF FASTENINGS Check that the following are fixed correctly: roof glass to slides roof mechanism assembly to body	OK	Move onto step 2
1		Fastenings faulty	Refit the entire mechanism correctly Op. 7030B14 Refit the roof correctly Op. 7030B12 End of diagnosis
2	CHECKING SUN-ROOF CONTROL DEVICES Checking operation of sun-roof devices with the roof fully open, check that the felt pads beneath the front spoiler are present with the roof fully open, check that the teflon mount between slides and rails is present with the roof tilted open, check the clearance between central groove and slides with the roof tilted open, check the pads sliding along the central groove are in good condition and properly fastened	OK	Move onto step 3
		Fastenings faulty	Repair all mechanism components and fastenings (see Assembly 7030B) End of diagnosis
		Sun-roof operating devices faulty	Replace the parts 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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