The clutch does not engage fully (is slipping)
| Possible causes of malfunction | Troubleshooting |
| The driven disk linings are badly worn | Replace the slave disk |
| Oiling of the flywheel, drive disk, friction linings | Wash the driven and driving disks with white spirit or gasoline, wipe the working surfaces of the disks and flywheel. Eliminate the cause of oiling (replace the seals) |
| Driven disk failure | Replace the slave disk |
| The diaphragm spring of the drive disk is faulty | Replace the drive disc assembly |
The clutch does not disengage (leads)
| Possible causes of malfunction | Troubleshooting |
| Air in the clutch release hydraulic drive | Bleed the clutch release hydraulic drive |
| Skew or warp of the driven disk | Replace the slave disk |
| Wear of the diaphragm spring petals at the point of contact with the release bearing | Replace the drive disc assembly |
| Seizure of the driven disk hub on the splines of the gearbox input shaft | Inspect the splines; if the hub is significantly damaged, replace the driven disk. Before assembly, apply SHRUS-4 grease to the gearbox shaft splines |
| The driven disk is "stuck" to the flywheel or drive disk (after a long period of parking) | Place wheel chocks, engage first gear and apply the parking brake. While simultaneously pressing the brake and clutch pedals, use the starter to turn the engine crankshaft |
The clutch pedal "falls through" or is pressed very easily
| Possible causes of malfunction | Troubleshooting |
| Air in the clutch release hydraulic drive | Bleed the clutch release hydraulic drive |
| The clutch release drive is faulty | Check the presence of fluid in the hydraulic drive system, the serviceability of the master and slave cylinders |
| The diaphragm spring is faulty | Replace the drive disc assembly |
Jerks when starting off
| Possible causes of malfunction | Troubleshooting |
| Oiling of the working surfaces of the friction linings of the driven disk | Remove the driven and driving disks, wash the parts with white spirit or gasoline, wipe the working surfaces of the disks and flywheel. Eliminate the cause of oiling (replace the gearbox or engine oil seal) |
| The friction linings of the driven disk are badly worn | Replace the slave disk |
| Settling or breakage of the torsional vibration damper springs, wear of the driven disk | Replace the slave disk |
| Deformation of the driven disk | Replace the slave disk |
| Loss of elasticity of the driven disk springs | Replace the slave disk |
| The driven disk is jammed on the splines of the primary shaft of the gearbox, severe wear of the splines of the disk hub | If the hub splines are heavily worn, replace the driven disk. Apply SHRUS-4 grease to the splines of the gearbox input shaft |
| Clutch diaphragm spring failure | Replace the drive disc assembly |
| The powertrain mounts are faulty | Inspect the supports, replace faulty ones |
Noise when disengaging or engaging the clutch
| Possible causes of malfunction | Troubleshooting |
| Clutch pedal bushing wear | Remove the pedal, replace its axle bushings |
| Severe subsidence, breakage of torsional vibration damper springs | Replace the slave disk |
| Loosening or breakage of the friction linings of the driven disk | Replace the slave disk |
| Severe wear or damage to the clutch release bearing | Replace the bearing assembly with the slave cylinder |