This is a plate with a friction material which spins against the flywheel to engage the engine power to the transmission. This friction material overtime wears and can then slip causing the car to rev without transmitting drive to the wheels.
These cylinders convert manual pressure from the clutch pedal to hydraulic pressure to operate the clutch, it does this via a sealed hydraulic system which can leak causing a spongy pedal or the pedal to stick to the floor.
The Release or trust bearing is a bearing which sits between the slave cylinder or clutch fork and the clutch assembly, over time this bearing can collapse or become very noisy causing a loud noise when the clutch pedal is operated.
A lot of modern diesel engines are fitted with dual mass flywheels, this is due to the latest technology being able to produce such high torque from the engine, as a result this needs to be dampened for a more smooth or less harsh gear change and to soften vibration. A dual mass flywheel is effectively two flywheels that transmit drive through a number of springs which cushions the drive to the transmission.
The most common failure symptoms are excessive freeplay or it can siez solid which may be noticed by a vibration felt through your clutch pedal or a harsh knocking noise.If you have any questions or would like a quote please call our friendly reception team on 01903 248967