Genuine OEM Audi Cylinder Head Gasket, part number 06E103148AG. This critical component forms a tight seal between the cylinder head and the engine block, preventing combustion gases, coolant, and oil from mixing or leaking. It is a multi-layer steel gasket, weighing 0.158 kg and extremely thin at 0.001 meters. Using a genuine OEM gasket ensures precise material composition, correct thickness, and exact sealing properties, which are vital for maintaining engine compression, preventing fluid leaks, and ensuring long-term engine reliability.