The part number 1714700990 refers to a clutch master cylinder for certain Mercedes-Benz models, particularly from the SLK-Class. Below is a detailed introduction: Product: Clutch Master Cylinder (1714700990) Compatible Models: Mercedes-Benz SLK-Class (R171): Fits models produced between 2004 and 2011. - May also be compatible with some related models using a manual transmission system. Function: - The clutch master cylinder is an essential part of a manual transmission system. It converts the force exerted on the clutch pedal by the driver into hydraulic pressure, which is then transferred to the clutch slave cylinder. This process disengages the clutch, allowing the driver to change gears smoothly. - In essence, it facilitates the engagement and disengagement of the clutch system, ensuring smooth gear shifting and proper transmission operation. Material: - Typically constructed from aluminum or high-quality steel with rubber seals and a plastic reservoir to hold brake fluid. Features: OE Standard Quality: Designed to meet or exceed Mercedes-Benz specifications, ensuring precise fitment and reliable performance. Hydraulic Seals: Equipped with high-performance seals that prevent fluid leakage and ensure consistent hydraulic pressure. Durability: Built to withstand the demands of daily driving and resist wear over time, especially in high-temperature environments. Symptoms of a Failing Clutch Master Cylinder: Difficulty in Shifting Gears: If the master cylinder is malfunctioning, you may experience problems engaging or disengaging gears. Spongy or Soft Clutch Pedal: The pedal may feel less resistant when pressed or may sink to the floor. Clutch Fluid Leaks: Fluid leakage around the master cylinder area. Clutch Slippage: A worn master cylinder can lead to improper clutch disengagement. Replacement Importance: - A faulty clutch master cylinder can lead to a loss of hydraulic pressure, making gear changes difficult or impossible, and potentially resulting in transmission damage. Replacing it ensures proper clutch function, which is vital for smooth driving, safety, and preventing transmission wear. This clutch master cylinder is a critical component for maintaining the functionality and performance of the manual transmission system in Mercedes-Benz SLK-Class models. Regular inspection and timely replacement help ensure reliable gear shifting and overall driving performance.