| | Test results |
| 0 | PRELIMINARY CHECKS | All OK | Problems encountered | Operation |
|---|
| Visually inspect whether the problem is accompanied by an oil leak from the gearbox/differential.Press the clutch pedal and check whether the noise increases.Check the gearbox/differential oil level Op. 0010T41 MANUAL GEARBOX OIL CHECK LEVEL AND TOP UP IF NECESSARY | Move on to Step 1 | Oil leak detected from the gearbox | Identify and eliminate the cause of the leak.Restore the oil level. |
| The noise disappears or decreases considerably with the clutch pedal pressed: the noise comes from inside the gearbox | Proceed as instructed in the See table S015 NOISE WHILST DRIVING |
| Oil level too low. | Restore the correct level Op. 0010T41 MANUAL GEARBOX OIL CHECK LEVEL AND TOP UP IF NECESSARYand carry out a road test. If the fault persists, move on to Step 1 |
| 1 | SPLINED HUB CHECK | All OK | Problems encountered | Operation |
|---|
| Check for excess grease on the clutch plate hub bushes and the gearbox main shaft | Move on to Step 2 | Gearbox main shaft hub faulty | Replace the gearbox main shaft Op. 2110B MANUAL GEARBOX WITH DIFFERENTIAL GEARS AND SYNCHRONISERS |
| Clutch plate hub bushes faulty. | Restore the correct lubrication for the bushes. If necessary, replace the clutch plate Op. 1810A20 CLUTCH - R + R |
| 2 | CLUTCH PLATE CHECK | All OK | Problems encountered | Operation |
|---|
| Check:- Clutch plate wear;- Fouling (oil or grease) of the clutch plate;- That there is no distortion of the clutch plate;- That there is no damage to the pressure plate diaphragm spring. | End of diagnosis | Clutch plate or pressure plate faulty | Replace the clutch plate Op. 1810A20 CLUTCH - R + R |
| Presence of oil or grease. | Also replace the gearbox input oil seal |
