18 · Diagnostics

S65 Seat creaking

Make: Alfa Romeo
Model: 147 Factory Service Manual
Year: 2000–2002
Section: Noise/vibrations › S65 Seat creaking

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Fault diagnosisS65 Seat creaking

S65 Seat creaking

When the car is moving, especially on rough ground or during acceleration or braking, there is noise from one of the front doors

Step	Test procedure	Result	Action
1	CHECKING GUARD AND CONTROL FASTENINGS Check that the following are fixed correctly: Of guards; Of seat belt anchorage.	OK	Move onto step 2
		Fault in front guard fastenings	Refasten correctly, and refit felt pads if necessary Op. 7045A43 End of diagnosis
		Fault in rear guard fastenings	Refasten correctly, and refit felt pads if necessary Op. 7045A44 End of diagnosis
		Seat belt fastening fault	Restore the correct fastening Op. 7065A12 End of diagnosis
		Noise noted during simulation	Eliminate the interference on the seat lift links End of diagnosis
2	CHECK ON SEAT SLIDE DEVICE Check the seat runners are properly fastened To the car floor pan To the actual seat. Also check the guide release bow is sliding efficiently Check the bow engagement notches	OK	Move onto step 3
		Device fastening faulty	Reattach the seat runners correctly End of diagnosis
		Sliding uneven	Replace the guides Op. 7045A71 End of diagnosis
		Bow deformation	Replace the deformed bow End of diagnosis
		Engagement notches worn	Replace the guides Op. 7045A71 End of diagnosis
3	CHECKING SEAT LIFT DEVICE (driver's side only) Check the seat lifting device In particular, check that the clearance is not excessive Also try to simulate movement during cornering to ensure no fouling is present. NOTE: The seat will lift only it someone is sitting in it	OK	Move onto step 4
		Clearance excessive	Replace the seat lift device and fastenings Op. 7045A45 End of diagnosis
		Fouling	Move fouling parts apart End of diagnosis
4	CHECK LUMBAR ADJUSTMENT DEVICE Check the lumbar adjustment device In particular, check that the clearance is not excessive	OK	Move onto step 5
4		Clearance excessive	Change the lumbar adjustment device Op. 7045A38 End of diagnosis
5	CHECK SEAT SLIDE RELEASE LEVER Check the release lever for longitudinal adjustment of the seat. In particular, check that the clearance is not excessive	OK	Move onto step 6
5		Clearance excessive	Replace the release lever Op. 7045A71 End of diagnosis
6	CHECK FOR FOULING BENEATH GUIDES Remove seat Op. 7045A10 and check for fouling against carpet or sound-proofing beneath the guides	OK	Move onto step 7
6		Fouling present	Remove the fouling and refit the seat correctly Op. 7045A10 End of diagnosis
7	CHECK LUMBAR ADJUSTMENT DEVICE Remove part of seat upholstery Op. 7045A92 Verify: connection between Pullmaflex plate and frame; connection between adjustment cables and frame; regulation casing seal.	OK	Move onto step 8
		Connections incorrect	Connect affected parts correctly End of diagnosis
		Rivetting incorrect	Replace instable rivets End of diagnosis
8	CHECK CUSHION AND SQUAB FASTENINGS Completely remove seat upholstery Op. 7045A92 Check that the following are fixed correctly: cushion module to sub-base squab beneath cushion sub-base	OK	Move onto step 9
8		Bolts loosened	Restore the correct fastening End of diagnosis
9	CHECK ON CORRECT OPERATION Check that the fault is no longer present	OK	Incorrect selection of diagnostic procedure
9		Fault persists	Replace the seat Op. 7045A10 Incorrect selection of diagnostic procedure

‹ Prev S62 Front door creaking Next › S70 Seat belt noise

Parts & tools for this job For 2000 Alfa Romeo 147

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