Genuine OEM Volkswagen Oil Filler Sealing Washer, part number 070103189A. This essential sealing component is designed to create a leak-proof seal for the engine's oil filler opening, preventing oil seepage and the ingress of contaminants into the engine. It is crucial for maintaining proper engine lubrication and cleanliness. These circular washers, approximately 66mm in diameter and 8mm thick, are typically made from a durable rubber or composite material. Choosing genuine OEM sealing washers ensures the correct material composition and precise dimensions for a reliable, long-lasting seal, preventing costly oil leaks and protecting engine internals.