Clutch jerking
Faulty engine and gearbox mounts
Check, replace if necessary.
Poorly mounted gearbox support
Tighten the mounting bolts.
The pressure plate does not fit evenly
Replace disk.
The driven disc is not an original part
Replace driven disk. Install original part.
The crankshaft is not aligned with the input shaft of the gearbox
Check the centering surfaces of the engine and gearbox.
Clutch release fork pushes to one side
Check the clutch release fork.
Clutch slipping
Worn clutch disc
Check the thickness of the disc friction lining, replace if necessary.
Stuck clutch slave cylinder
Replace cylinder.
Diaphragm spring tension too low
Replace pressure plate.
Leaky hydraulic clutch slave cylinder
Carry out a visual check.
Hardened or oily friction lining
Replace the clutch disc.
Clutch overheated
Install a new original clutch.
Clutch not disengaging well
Friction lining covered with abrasion products
Replace the clutch disc.
Clutch disc stuck on gearbox input shaft, spline joint dry or stuck together
Clean spline, deburr, remove rust if necessary and lubricate again, e.g. with molybdenum powder.
Lateral runout of the clutch disc
Check the disk, replace if necessary.
Leaky primary (main) cylinder
With the clutch pedal depressed, see if the brake fluid is seething in the reservoir. Replace cylinder.
Clutch pedal does not reach limit stop
Check if the limiter is reached. Cut the rug if necessary.
Defective release bearing
Check the bearing.
Air in hydraulic system
Bleed the air from the clutch actuator.
Faulty input shaft centering bearing in flywheel
Replace flywheel centering (needle) bearing.
Driven disc warped or friction lining damaged
Replace pressure plate.
Noise when clutch pedal depressed
Defective clutch release bearing
Check the release bearing, replace it.
Clutch disc hitting pressure plate
Replace the clutch disc.
Rising and falling noise when pushing or towing the vehicle, or when driving with the clutch disengaged
The course of the torsion springs of the clutch disc is difficult
Replace the clutch disc.
Loose rivets on clutch pressure plate
Replace disk.
Too much clutch imbalance
Replace pressure and driven discs.
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