| | 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 is heard coming from the front.Continue depending on the circumstances in which the noise occurs | End of diagnosis | The noise disappears when the handbrake is operated | Eliminate the clearance for the handbrake lever and/or actual handbrake |
| The noise also appears in other conditions | Continue to Step 1 |
| 1 | CHECK FOR OIL LEAKS | All OK | Problems met | Operation |
|---|
| Raise the vehicle on a two collumn lift and check that there are no oil leaks from the shock absorber stem. | Slight dampness of the stem is considered normal because there is evaporation that takes place during the operation of the shock absorber. If there is a consistent oil leak at the shock absorber stem, make sure that it is not coming from other parts of the vehicle that are lubricated |
| Continue to Step 2 | Leaks from other parts that are lubricated | Search for the cause of the leak by following the appropriate diagnostic procedure |
| Leaks from other parts that are lubricated | Replace the shock absorber Op. 4420A30 |
| 2 | HANDBRAKE CHECK | All OK | Problems met | Operation |
|---|
| Position the vehicle on a two column lift and raise it.Check that the handbrake cable outer casing or cables do not come into contact with the fuel tank, heat shields or bodywork during oscillation | Continue to Step 3 | Interference between the cable or outer casing and other elements | Cover the cable outer casing with foam rubber tape in the interference area or lubricate the cable |
| 3 | INTERFERENCE CHECK | All OK | Problems met | Operation |
|---|
| Check that there are no signs of interference between the suspension elements or between the latter and the bodyshell.In particular, check that there are no signs of wear at the suspension springs and that they do not suffer from abrasions | Continue to Step 4 | Interference due to incorrect fitting | Eliminate the interference and restore the correct fastening. If this is not possible, replace the defective components |
| Interference due to incorrect fitting | Replace the spring Op. 4420A48 taking care to fit it correctly |
| 4 | TIGHTENING TORQUE CHECK | All OK | Problems met | Operation |
|---|
| Locate the area that is the possible source of the noise: top or bottom.Starting from the area where the knocking was located, check the tightening torques See Test 4420B Verifiche corretti serraggi sospensioni posteriori Of the bolts fixing the: | Continue to Step 5 | Tightenings not to torque | Restore the correct tightening |
| 5 | Continue as instructed by the tester | All OK | Problems met | Operation |
|---|
| Check that the fault is no longer present | End of diagnosis | The fault persists | The knocking is caused by another system (e.g. the fuel float in the tank). Carry out the appropriate checks for identifying the causes of the noise |
