Audi VW EGR Valve - Genuine Audi VW 079131101AR

Product Information

An Exhaust Gas Recirculation (EGR) valve is an emissions control component that recirculates a portion of the engine’s exhaust gases back into the intake manifold. By mixing exhaust with the air-fuel charge, it lowers combustion temperatures, reducing the formation of harmful nitrogen oxides (NOx) and improving efficiency under certain conditions. Modern vehicles may use electronically controlled EGR valves for precise operation.

• Rough idle or stalling, caused by the valve sticking open and letting in too much exhaust.
• Poor performance or hesitation, often from a clogged or stuck-closed valve restricting proper gas flow.
• Check Engine Light (CEL) with related fault codes (e.g., P0401 “EGR flow insufficient” or P0402 “excessive EGR flow”).

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.