169000047 - H005 POOR DRIVING COMFORT - AT FRONT

The customer complains of poor driving comfort especially noticeable at the front.

1	ROAD TEST TO EVALUATE THE DRIVING COMFORT	All OK	Problems encountered	Operation
	Carry out a road test to evaluate the driving comfort of the front suspension    See Test 44A ROAD TEST FOR COMFORT EVALUATION	End of diagnosis	Subjective judgement compared with the reference vehicle 6 Subjective judgement compared with the reference vehicle 5.5 Subjective judgement compared with the reference vehicle 3-4	Acceptable behaviour of the vehicle Move on to Step 2 Move on to Step 4
2	END OF TRAVEL BUFFER CHECK	All OK	Problems encountered	Operation
	Raise the vehicle on a two column lift and check that the end of travel buffer is correctly inserted in its housing carrying out the    See Test 4410AA CHECKING CORRECT MOUNTING OF STOP PAD ON FRONT SHOCK-ABSORBER	Move on to Step 3	End of travel buffer not correctly inserted	Refit the buffer correctly
3	TRACK CONTROL ARM BUSHES CHECK	All OK	Problems encountered	Operation
	Check the condition of the track control arm bushesIn order to do so the guard under the engine must be removed    Op. 7055B54 UNDER-ENGINE GUARD - R R	Move on to Step 4	Track control arm bushes deteriorated	Replace the track control arm    Op. 4410B40 LOWER WISHBONE (WITH BALLJOINT) OF LEFT OR RIGHT FRONT SUSPENSION (ONE) - R+R -CHECK WHEEL GEOMETRY SEPARATELY
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 bonnet 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. 4410A12 FRONT SUSPENSION DAMPER (ONE), LH OR RH - FOR MCPHERSON STRUT SYSTEM - INCLUDES DISMANTLING/RE-BUILDING 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