Breakdowns of the clutch slave cylinder much of the time are easy to reveal: it is enough to lift the car with a hoist, to start the engine, to ask an assistant to depress the clutch pedal as far as it goes and check the unit. Cracks on the housing, its warping or corrosion, leakage of fluids from the dust covers and seals indicate that the part should be fixed or replaced. For more comprehensive diagnosis, the component should be disassembled and examined. If the degree of the clutch cylinder wear is too large, the assembly requires replacement. You may distinguish that the clutch slave cylinder requires to be inspected by the following symptoms: the clutch pedal free travel has increased, the fluid level in the expansion tank has considerably decreased, fluid traces have appeared on the part surface, the pedal does not return to its initial position, the car moves jerkingly, declined vehicle dynamic, gears moving has become difficult, burning smell in the passenger compartment. One of the most regular reasons for the slave cylinder spillage is wear of the sealing cups, as a result the required pressure is not created in the unit chamber when you depress the pedal. Premature disruption of rubber parts is often caused by usage of bad quality or substandard brake fluid, neglecting its replacement intervals. The defensive dust cover can rupture due to the impact of moisture, dirt or road chemicals. This results in violation of the cylinder tightness, its contamination, and may lead to the ingress of air into the clutch drive system. Mechanical harm to the housing can occur due to the ingress of stones and other foreign objects into it while driving.