23 · Diagnostics

Noise whilst driving

Make: Alfa Romeo
Model: 159 Factory Service Manual
Year: 2005–2011
Section: Noise / vibrations › Noise whilst driving

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Fault diagnosisNoise whilst driving

NOISE WHILST DRIVING

Whilst driving, especially on unmade roads, there is an unspecific noise.

This noise could be due to the engine assembly, the clutch-gearbox-differential unit or the braking system. In these cases the noise could also occur on even road surfaces or only in certain gears or certain conditions (gear engagement/release, braking, etc.)

1	CHECKS IN FRONT AREA OF PASSENGER COMPARTMENT	All OK	Problems encountered	Operation
		Results of the tests
	Check that the noise is not due to the poor fastening of components or equipment. For example, check whether the noise could be caused by Objects housed in the dashboard or in the front doors Incorrect fastening of the front seat belts	Move on to Step 2	Noise due to objects in the various compartments	Fasten the objects better or wrap them in foam or a soft cloth to stop the noise
		Move on to Step 2	Seat belts incorrectly fastened	Renew the correct fastening Op. 7065A10 FRONT SEAT BELT (ONE) LEFT OR RIGHT - R.R.
2	CHECKS IN THE LUGGAGE COMPARTMENT	All OK	Problems encountered	Operation
	Check that the noise is not due to the poor fastening of components or equipment. For example, check whether the noise could be caused by Objects housed in the luggage compartment Spare wheel or tools (jack, etc.) incorrectly fastened Incorrect fastening of the rear parcel shelf Incorrect fastening of the rear boot	Move on to Step 3	Noise due to objects in the luggage compartment	Fasten the objects better or wrap them in foam or a soft cloth to stop the noise
			Spare wheel or tools incorrectly fastened	Renew the correct fastening
			Incorrect fastening of rear parcel shelf	Renew the correct fastening of the rear parcel shelf Op. 7040H80 REAR PARCEL SHELF - R.R.
			Incorrect fastening of rear boot	Restore the correct fastening of the rear boot Op. 7210E54 BOOT
3	CHECKS IN REAR AREA OF PASSENGER COMPARTMENT	All OK	Problems encountered	Operation
	Check that the noise is not due to the poor fastening of components or equipment. For example, check whether the noise could be caused by Incorrect fastening of the rear seat belts Incorrect fastening of the rear seat Objects contained in the rear door compartments	Move on to Step 4	Noise due to objects in the various compartments	Fasten the objects better or wrap them in foam or a soft cloth to stop the noise
			Side seat belts incorrectly fastened	Renew the correct fastening of the belts Op. 7065B10 REAR SEAT BELT (ONE), LEFT OR RIGHT - R.R.
			Middle seat belt incorrectly fastened	Renew the correct fastening of the belt Op. 7065B18 CENTRE REAR SEAT BELT - R.R.
			Incorrect fastening of rear seat	Restore the correct fastening of the seat Op. 7050A10 REAR SEAT - R+R
4	ROAD TEST TO IDENTIFY NOISE	All OK	Problems encountered	Operation
	Road test the vehicle to check the type of noise See Test 70B ROAD TEST FOR NOISE RECOGNITION	End of diagnosis	The noise is due to systems other than the suspension (power unit-clutch-gearbox-differential-brakes-steering)	Search for the causes carrying out the appropriate fault diagnosis
			The noise is due to interior or exterior creaking of dashboard components	Restore the correct fastening of the loose component
			The noise is due to the sun roof	Search for the causes carrying out the appropriate fault diagnosis
			The noise has not been isolated	Move on to Step 5
5	CHECKS UNDER THE BODY	All OK	Problems encountered	Operation
	Check that the noise is not due to the poor fastening of components or equipment. For example, check whether the noise could be caused by Incorrect fastening of the front liners or engine guards Incorrect fastening of the rear liners or other exterior trim elements	End of diagnosis	Incorrect fastening of bodywork elements	Restore correct fastening of problem elements

‹ Prev Engine knock Next › Front suspension noise (creaking/squeaking)

Parts & tools for this job Staging For 2005 Alfa Romeo 159

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