Genuine OEM Volkswagen Exhaust Gas Temperature Sender, part number 04L906088CG. This sensor is designed to measure the temperature of the exhaust gases. It is typically located in the exhaust system before or after emission control components. Accurate temperature readings are crucial for the proper functioning of the engine management system, emissions control, and turbocharger operation. Genuine OEM parts are manufactured to exact specifications for optimal performance and longevity.