33506767010 BMW WASHER

A WASHER is a crucial part in BMW's suspension system, specifically designed for use on certain models such as coupe and convertible variants (excluding M3) and sedan and wagon variants (excluding M3), including the 128i and 135i. Its primary function is to act as a seal or grommet within the shock absorber. Shock absorbers are velocity-sensitive, hydraulic dampers controlling unwanted spring oscillation in a vehicle’s suspension system. Typically implemented as a component of the strut assembly or rear suspension, they convert kinetic energy into thermal energy via piston movement through a pressurized fluid. Internal valving regulates damping force, tuned to specific vehicle load and driving conditions. Construction commonly utilizes a multi-stage piston design and robust cylinder body for durability and consistent performance. Performance characteristics are defined by compression and rebound damping rates, impacting ride control and handling.