Audi VW Turbocharger Gasket - Genuine VW Audi 4D0253115A

Product Information

The catalytic converter gasket is the sealing component located between the catalytic converter and other exhaust system parts, such as the exhaust manifold or header pipes leading from the exhaust side of the cylinder head. Its purpose is to create a tight seal, preventing exhaust gases from escaping at the connection points. This ensures that the exhaust gases flow through the catalytic converter, which reduces harmful emissions before they exit the vehicle’s exhaust system.

• Exhaust Leaks: A common symptom of a bad catalytic converter gasket is an exhaust leak, which can be detected by a hissing or popping sound coming from the exhaust system, especially near the catalytic converter. You might notice this sound more when accelerating.
• Exhaust Odor: If the catalytic converter gasket fails, exhaust gases, including unprocessed pollutants, can escape before they are properly treated by the catalytic converter. This may lead to a noticeable smell of exhaust fumes, which can be particularly strong and unpleasant.

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.