The Vemo Volkswagen Diesel Glow Plug Controller - V10710003 is a high-quality, OEM replacement part designed specifically for Volkswagen diesel vehicles. This controller is responsible for regulating the flow of electricity to the glow plugs, which are used to heat the engine and aid in starting the vehicle in cold weather conditions. It is made from durable materials and rigorously tested to ensure reliable performance. This product is a direct fit for a wide range of Volkswagen models and is an essential component for maintaining proper engine function.