Clutch (Opel Omega A)

The pedal fails - there is no pressure or the resistance is very low

• Low hydraulic fluid level/air in hydraulic system
• The release bearing or the clutch release fork is damaged
• The diaphragm spring in the clutch pressure plate is damaged

The clutch does not disengage (unable to change gear)

• Hydraulic fluid level too high
• The clutch disc is stuck in the grooves of the gearbox input shaft
• Clutch disc stuck on flywheel or pressure plate
• Defective pressure plate assembly
• Worn or improperly assembled clutch release mechanism

Clutch slippage (increasing engine speed without increasing vehicle speed)

• Hydraulic fluid level too high
• Clutch disc gaskets are excessively worn
• Clutch disc gaskets contaminated with oil or grease
• Defective pressure plate or weak diaphragm spring

Intense vibration when engaging the clutch

• Clutch disc gaskets contaminated with oil or grease
• Clutch disc gaskets are excessively worn
• Defective or warped pressure plate or diaphragm spring
• Worn or loose engine or gearbox mounts
• The clutch disc hub or gearbox input shaft grooves are worn out

Noise when pressing or releasing the clutch pedal

• The release bearing is worn out
• Clutch pedal bushings are worn or not lubricated
• The pressure plate assembly is defective
• The diaphragm spring of the pressure plate is damaged
• The clutch disc springs are damaged