Genuine OEM Volkswagen Tube For Oil Dipstick, part number 03H115629D. This tube serves as a guide for the oil dipstick, ensuring it can be correctly inserted into the engine to measure the oil level. It also helps to seal the dipstick tube opening, preventing dirt and debris from entering the engine's lubrication system. The tube is constructed from durable materials to withstand engine bay temperatures. Genuine OEM parts are essential for the proper functioning of the lubrication system, ensuring accurate oil level checks and protection against contamination.