Cause |
elimination |
A. The clutch is slipping. |
- The control automatics is defective; initial pressure in the system (1 bar) too high (primary pressure valve stuck).
- Clutch gaskets worn out.
- The clamping force is low.
- Clutch gasket is oily.
- The clutch was overheated.
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- If necessary, replace the clutch master cylinder with the clutch release bearing, change the initial pressure valve.
- Replace driven disk.
- Replace clutch pressure plate. Replace the driven disk immediately with it.
- The radial shaft seal on the crankshaft or transmission input shaft is leaking. Replace worn ring.
- Check the engine flywheel, grind if necessary, completely replace the clutch.
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B. Clutch does not separate. |
- See A1.
- Clutch slave or master cylinder defective.
- Air in the hydraulic system.
- The driven disk is clamped on the gearbox shaft.
- Driven disk broken.
- The driven disk is skewed or the gasket is torn off.
- The gasket after a long standing rusted to the flywheel.
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- Replace defective cylinders.
- Add liquid; vent the clutch.
- Thoroughly clean and lightly lubricate the spline.
- Replace driven disk.
- Move off as described in section «Driving without clutch engagement». Keep the clutch pedal depressed at all times. Press the accelerator pedal hard and then release to break the clutch.
- Replace defective parts.
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B. Clutch does not separate and slips at the same time. |
The automatic clutch drive is defective. |
Replace. |
G. Clutch jerking. |
- See A3.
- The engine or transmission suspension is loose or defective.
- hard zones (roughness on the flywheel or pressure plate).
- Wrong pads (degree of hardness). The vibration damper is worn out.
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- Fix or replace the engine or transmission mount.
- The flywheel must be replaced later, the pressure plate must be replaced immediately.
- Replace driven disk.
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D. Clutch noise. |
- Clutch pressure plate or driven disc imbalance.
- Vibration damper spring worn.
- The clutch release bearing is defective.
- The connecting elements in the automatic clutch drive are worn out (broken).
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- Replace defective parts.
- Replace driven disk.
- Replace the central cam with integrated clutch release bearing.
- Replace automatic clutch drive.
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