This connecting flange, part number 11127806196 from
BMW, is designed to connect hoses or pipes in the cooling system of certain BMW models, including those equipped with a 335d engine.
Hoses and pipes facilitate the transfer of fluids—including coolant, oil, fuel, brake fluid, and transmission fluid—throughout vehicle systems. These components are implemented across the engine, chassis, and fuel/brake lines, utilizing reinforced synthetic rubber or metal construction to withstand pressure and temperature extremes. Multi-layered designs with internal liners and external protective coverings resist degradation from fluid contact and environmental factors. Connection types include barbed fittings, flange connections, and quick-connect couplings, ensuring secure and leak-free operation. Specific formulations address fluid compatibility, with materials selected to prevent swelling, cracking, or permeation.