- Wear of the bearings of the input shaft of the gearbox (the manifestation of noise when the clutch pedal is released and its disappearance when the pedal is depressed) (chapter 7A).*
- Clutch release bearing wear (noise when the clutch pedal is pressed, with a possible decrease when the pedal is released) (chapter 6).
Noise when shifting into one of the gears
- Worn, damaged or broken gear teeth (chapter 7A).*
Difficulty shifting gears
- Clutch failure (chapter 6).
- Worn or damaged linkage/shift cable (chapter 7A).
- Incorrect linkage/shift cable adjustment (chapter 7A).
- Synchronizer wear (chapter 7A).*
Spontaneous disengagement of gears
- Worn damaged linkage/shift cable (chapter 7A).
- Incorrect linkage/shift cable adjustment (chapter 7A).
- Synchronizer wear (chapter 7A).*
- Gear selector fork wear (chapter 7A).*
Vibration
- Lack of oil (chapter 7A).
- Bearing wear (chapter 7A).
Oil leak
- Transmission oil leaking from differential outlet seal (chapter 7A).
- Leakage through body joints (chapter 7A).*
- Oil leakage through the cuff of the input shaft (chapter 7A).
* Although the troubleshooting above is beyond the power of the owner of the car, however, the information provided should help you identify their causes in order to clearly present the situation to a professional auto mechanic.