Genuine OEM Audi Engine Cylinder Head Gasket, part number 06E103148AR. This critical gasket forms a seal between the cylinder head and the engine block, maintaining combustion chamber compression and preventing the intermixing of engine oil and coolant. Weighing approximately 0.183 kg, it is typically a multi-layer steel (MLS) design. Using a genuine OEM head gasket ensures the correct material composition, thickness, and sealing properties, vital for preventing engine damage from compression loss or fluid contamination.