The Vemo Volkswagen Diesel Glow Plug Controller - V15711032 is a component designed for use in diesel engines. It is specifically made for Volkswagen vehicles and is responsible for controlling the glow plugs, which are used to heat the engine during cold starts. This controller ensures that the glow plugs are activated at the right time and for the correct duration, allowing for smooth and efficient starting of the engine. It is a reliable and essential part of the diesel engine system, providing improved performance and fuel efficiency.