| | Results of the tests |
| 0 | PRELIMINARY CHECKS | All OK | Problems met | Operation |
|---|
| Having carried out the road test during the See table S15 RUMOROSITA' in condizioni di marcia , a creaking/clicking
noise was noticed coming from the back.Continue depending on the circumstances in which the noise occurs | End of diagnosis | The noise is produced
whilst steering, even with the vehicle stationary | Continue to Step 1 |
| The noise occurs particularly on uneven roads driving
uphill, when accelerating or braking | Continue to Step 2 |
| The noise occurs particularly on uneven roads driving
uphill, when accelerating or braking | Continue to Step 6 |
| Having carried out the road test during the See table S15 RUMOROSITA' in condizioni di marcia , a creaking/clickign
noise is noticed coming from the back.Continue depending on the circumstances in which the noise occurs | End of diagnosis | The noise occurs particularly on uneven roads driving
uphill, when accelerating or braking | Continue to Step 2 |
| The noise also occurs on even, undulating roads | Continue to Step 5 |
| 1 | MOVING ELEMENTS CHECK | All OK | Problems met | Operation |
|---|
| Check that the noise is not caused by the movement
of the shock absorber upper buffer.It is located under the carpet in the luggage compartment, in
the area of the wheel arch | End of diagnosis | The buffer is loose | Tighten the upper nut
to torque so that the buffer no longer moves |
| 2 | BUSH CHECK | All OK | Problems met | Operation |
|---|
| Check
that there are no signs of rubbing or contact between the thrust
washers and bushes See Test 4420DA Verifica gioco boccole sospensioni posteriori | Continue to Step 3 | Signs of rubbing | Lubricate the elements with
silicon grease |
| 3 | DUST COVER CHECK | All OK | Problems met | Operation |
|---|
| Check that the dust cover is not rubbing against the
shock absorber casing, by moving it pressing and releasing it above
the shock absorber casing | Continue to Step 4 | It is rubbing | Replace the end of travel
buffer |
| Check that the dust cover is not rubbing against the shock
absorber casing, by moving it pressing and releasing it above the
shock absorber casing | Continue to Step 4 | It is rubbing | Replace the shock absorber Op. 4420A30 |
| 4 | UNDER FLOOR CHECKS | All OK | Problems met | Operation |
|---|
| Position the vehicle on a two column lift and
raise it.Check that the pipes or heat shields under the floor are not
the cause of any noiseAlso check that the clips on the layout brackets are not the
source of any noise See Test 4420A Verifica stato mollette su staffette di layout | Continue to Step 6 | Pipes or heat shields
not correctly fastened | Restore the correct fixing |
| Pipes or heat shields not correctly fastened | Lubricate the handbrake cable |
| Pipes or heat shields not correctly fastened | Replace the faulty components |
| Position the vehicle on a two column lift and raise it.Check under the floor that the pipes, handbrake cable and heat
shields are not the source of any noise.Also check that the clips on the layout brackets are not the
source of any noise See Test 4420A Verifica stato mollette su staffette di layout | Continue to Step 5 | Pipes or heat shields not correctly fastened | Restore the correct fixing |
| Handbrake cable noisy | Lubricate the handbrake cable |
| Clips or mountings damaged | Replace the faulty components |
| 5 | END OF TRAVEL BUFFER CHECK | All OK | Problems met | Operation |
|---|
| Check that the end of travel buffer is correctly fitted
in its seat, by carrying out the See Test 4420AA Verifica tampone di fine corsa molle sospensioni posteriori | Continue to Step 6 | Spring support rings do
not conform | Replace the faulty components |
| Spring support rings do not conform | Replace the reaction plate |
| Spring support rings do not conform | Fit the plate correctly |
| Spring support rings do not conform | Replace the end of travel buffer |
| 6 | MOUNTINGS CHECK | All OK | Problems met | Operation |
|---|
| Check
that the mountings fastening the suspension to the bodyshell (at
the shock absorber turrets) do not show signs of wear due to rubbing.
The shock absorber has to be removed in order to check this Op. 4420A30 | Continue to Step 7 | Signs of tearing/damage
to the mountings | Replace the components making sure that they are correctly
positioned |
| 7 | SPRING CHECK | All OK | Problems met | Operation |
|---|
| Check
that there are no signs of rubbing on the suspension spring at its
supports.Also check that the spring does not show signs of wear | If the spring shows signs of abrasions,
its mechanical properties could deteriorate as a result of oxidation |
| End of diagnosis | Spring worn | Replace the shock absorber
spring Op. 4420D48 |
| Spring worn | Refit correctly |