Audi VW Engine Oil Drain Plug Seal - Genuine Audi N0138503

Product Information

The engine oil drain plug is a small port located at the bottom of the oil pan. Its primary purpose is to seal the oil pan and allow for easy draining of the engine oil during oil changes. The plug is typically made of metal steel or aluminum, but sometimes plastic, and includes a rubber or metal gasket to prevent oil from leaking out. The drain plug is removed during oil changes to allow the old oil to flow out of the engine, and it is then replaced after the oil pan is emptied.

• Oil Leaks: The most common symptom of a failing or damaged oil drain plug is an oil leak. If the plug or its gasket is worn, cracked, or improperly tightened, oil may leak from the oil pan. This can lead to oil puddles under the vehicle or visible oil residue around the drain plug area.
• Stripped Threads: Over time, the threads on the oil drain plug or in the oil pan may become stripped due to overtightening or improper installation. This can prevent the plug from sealing properly, leading to oil leaks or difficulty securing the plug during oil changes.

About Genuine VW Audi

The Volkswagen Group, also known as “VAG”, consists of Volkswagen, Audi, Lamborghini, Bentley, Bugatti, Porsche, Ducati, MAN, Scania, SEAT, and Skoda. The original parts used by VAG to build your car are available as replacement parts under the “Genuine VAG” brand. Manufactured under the direction of VAG, expect excellent quality and a premium price since these parts are available exclusively through the VAG Dealership network.

You may not realize this, but the parts that make up your VAG are not necessarily manufactured by VAG. No cause for concern, as VAG designs the part, hires a manufacturer, and ensures its quality to you. In fact, many of these manufacturers have been making parts for VAG for decades. In our industry these manufacturers are called OEM (Original Equipment Manufacturers), and these are often brands you recognize, including Lemforder, ZF, Sachs, Bosch, Valeo, Zimmermann, Siemens VDO, Corteco, and more. Don’t be surprised to open that Genuine VAG parts box and find an OEM branded part inside, simply with the addition of a VAG logo.

Be sure to keep an eye out for OE tags on our product pages to quickly identify parts coming direct from OE manufacturers. That extra bit of insight could save you some serious money while shopping! Refer to our OE Academy for further information regarding the OE/OEM tags throughout the site.