23 · Diagnostics

Excessive rolling/pitching - at rear

Make: Alfa Romeo
Model: Brera and Spider Factory Service Manual
Year: 2005–2010
Section: Steering – vehicle behaviour › Excessive rolling/pitching - at rear

‹ Prev Excessive rolling/pitching - at front Next › Steering hard / (steering in both directions)

Fault diagnosisExcessive rolling/pitching - at rear

EXCESSIVE ROLLING/PITCHING - AT REAR

The customer complains of an excessive rolling and/or pitching sensation of the vehicle, especially at the back.

1	ROAD TEST TO EVALUATE THE ROLLING/PITCHING	All OK	Problems encountered	Operation
	Carry out a road test to evalute the folling/pitching of the vehicle See Test 44B ROAD TEST FOR ROLLING/PITCHING EVALUATION	End of diagnosis	Subjective judgement compared with the reference vehicle 6	Acceptable behaviour of the vehicle
			Subjective judgement compared with the reference vehicle 5.5	Move on to Step 2
			Subjective judgement compared with the reference vehicle 3-4	Move on to Step 4
2	LONGITUDINAL ARM CHECK	All OK	Problems encountered	Operation
	Check condition: - of the bush fastening the longitudinal arm to the body; - of the bushes fastening the longitudinal arm to the steering knuckle	Move on to Step 3	Bush fastening longitudinal arm to the body not intact	Replacement of longitudianl arm complete with transverse plate and bodyshell mounting bracket, in accordance with the Op. 4410B40 LOWER TRACK CONTROL ARM (WITH BALLJOINT) FOR LEFT OR RIGHT FRONT SUSPENSION (ONE) - R+R - CHECK WHEEL GEOMETRY SEPARATELY checking the toe-in values are correct
		Move on to Step 3	Bushes fastening the longitudinal arm to the steering knuckle not intact	Replacement of rear stub axle, checking that the toe in values are correct
3	CAMBER ROD CHECK	All OK	Problems encountered	Operation
	Check condition: - of the bush securing the camber rod to the crossmember; - of the bush securing the camber rod to the steering knuckle	Move on to Step 4	Bush securing the camber rod to the crossmember not intact	Replacement of camber rod in accordance with the Op. 4410B68 LOWER SWINGING ARM(ONE), LH OR RH OF FRONT SUSPENSION - R R -CHECK WHEEL ALIGNMENT SEPARATELY checking the camber values are correct
		Move on to Step 4	Bush securing the camber rod to the steering knuckle not intact	Replacement of rear stub axle, checking that the toe in values are correct
4	SHOCK ABSORBER EFFICIENCY CHECK	All OK	Problems encountered	Operation
	Check the efficiency of the shock absorbers by carrying out manual compression manoeuvres (resting on the wheel arch by the centre of the wheel), which should be carried out on both sides of the vehicle.	Move on to Step 5	Sudden return without damping	Replace the shock absorber that is not working properly Op. 4420A12 REAR SUSPENSION DAMPER (ONE), LH OR RH - FOR MCPHERSON STRUT SYSTEM - INCLUDES DISMENTLING/REBUILDING OF ASSEMBLY AT BENCH R R
5	VEHICLE GEOMETRY CHECK	All OK	Problems encountered	Operation
	After replacing the shock absorbers, check the geometry	End of diagnosis	Geometry values do not conform	Restore the geometry to the correct values Op. 4450A40 REAR WHEEL GEOMETRY - CHECK USING OPTICAL EQUIPMENT, INCLUDES ADJUSTMENT IF NECESSARY

‹ Prev Excessive rolling/pitching - at front Next › Steering hard / (steering in both directions)

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

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