The main task of the clutch system is the transfer of torque from the engine to the wheel. This means, the action of the adhesion mechanism cuts the engine from the transmission for a certain period of time, followed by a reconnection after the driver switches the gear.

The structure of the main cylinder is not so complicated: body, cylinder, piston and cups. The main task of the clutch cylinder is to carry out the force caused by the working brake fluid from the pedal directly to the functioning clutch cylinder. If there is a leak of brake fluid through the cups or the piston is out of order, it means that the brake main cylinder needs to be repaired or replaced. Air can get into the hydraulic clutch through the damaged O-rings in the clutch master cylinder. Leakage of fluid can be noticed judging by the behavior of the clutch pedal, and visually.