- The clutch cable is broken.
- The clutch cable adjuster is faulty.
- Low hydraulic fluid/air in hydraulic system - hydraulic clutch
- The clutch release bearing or engagement fork is damaged (Section 5).
- The diaphragm spring in the clutch pressure plate is broken (Section 5).
The clutch does not disengage (gears are not selected)
- Incorrect clutch cable adjustment (automatic regulator) — cable drive (Section 5).
- Incorrect clutch cable adjustment/automatic adjuster - cable operated clutch (Section 5).
- Too high hydraulic fluid level - for hydraulic drive
- The clutch disc is stuck in the grooves of the gearbox input shaft (Section 5).
- The clutch disc is seizing on the flywheel or pressure plate (Section 5).
- Defective pressure plate assembly (Section 5).
- The clutch release mechanism is worn out or improperly assembled (Section 5).
Clutch slippage
- Clutch cable adjuster faulty - cable operated clutch
- Hydraulic fluid level too high - hydraulic clutch
- Excessive wear of the clutch disc gasket (Section 5).
- Clutch disc gasket contaminated with oil or grease (Section 5).
- Defective pressure plate or weak diaphragm spring (Section 5).
Intense vibration when clutch is engaged
- Clutch disc gasket contaminated with oil or grease (Section 5).
- Excessive wear of the clutch disc gasket (Section 5).
- Clutch Cable Stuck - Cable Actuated Clutch (Section 5).
- Defective or distorted pressure plate or diaphragm spring (Section 5).
- Engine or gearbox mountings are worn or loose (Section 1).
- Worn grooves of the gearbox input shaft or clutch disc.
Noise when pressing or releasing the clutch pedal
- The clutch release bearing is worn out (Section 5).
- Worn or dry clutch pedal bushings (Section 5).
- Defective pressure plate assembly (Section 5).
- The diaphragm spring of the pressure plate is broken (Section 5).
- The clutch disc springs are broken (Section 5).
[The original publication in its entirety is posted on the website: AUDImanual]