This crankcase breather hose is intended for the Volkswagen Polo Classic and Volkswagen Polo Estate, engine code ADD. It ensures the connection between the cylinder head cover and the intake circuit, allowing proper management of crankcase gases. As part of the restoration or maintenance of a classic vehicle, replacing this hose contributes to proper engine operation and prevents any leaks or pressure loss. An essential new part to keep this model in a working condition consistent with its original specification.