This Secondary Air Control Valve, part number 06A131351D, is a direct replacement for the original component on compatible VAG vehicles. Its primary function is to regulate the flow of secondary air into the exhaust system, particularly during cold starts. This process aids in reducing harmful emissions by promoting the oxidation of unburned hydrocarbons and carbon monoxide. Proper functioning of the Secondary Air Injection (SAI) system, which this valve is a part of, is crucial for maintaining your vehicle's emissions compliance and preventing potential check engine light illumination. A faulty valve can lead to increased emissions, rough idling, and failed emissions tests. Crafted to meet VAG's stringent quality standards, this valve ensures reliable performance and durability. Installation is straightforward for mechanics familiar with VAG systems, making it an ideal choice for restoring your vehicle's emissions control system to its original specifications.
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