Genuine Fuel Filler Cap

The BMW Genuine Parts 16117193372 is a direct-fit fuel filler cap designed to maintain the integrity of your BMW's fuel system. This component seals the fuel tank opening, which is crucial for preventing fuel vapors from escaping into the atmosphere and for maintaining the necessary pressure within the fuel system. A properly functioning fuel filler cap plays a vital role in emissions control, ensuring fuel efficiency, and preventing fuel contamination. This cap is manufactured in Austria and includes a gasket seal for a secure fit. A common symptom of a faulty or loose fuel tank cap is the illumination of the Check Engine Light, often accompanied by fault codes such as P0455 or P0457, which relate to the evaporative emissions system. Other indicators can include issues within the Evaporative Emission Control (EVAP) system, potential emissions test failures, and a noticeable gasoline smell around the vehicle, particularly near the fuel filler area, due to escaping fuel vapors. Replacing a faulty fuel tank cap can resolve these issues and reset related codes. This Genuine BMW fuel filler cap is designed for a wide range of BMW models, including various iterations of the 1 Series (E81, E87, E88), 3 Series (E46, E90, E91, E92, E93), and certain 5 Series (E39, F10, 528i, 540i), as well as F01, F02, and F15 chassis. It is also specified for the 2011-2012 BMW 740i and 740Li, and the 2013-2015 BMW Alpina B7L xDrive. It is important to note that this cap is not suitable for diesel models.