About VW TDI Glow Plugs
For your trusty diesel-powered VW to start up in the morning, there must be enough heat to generate ignition and to keep the fuel moving through the engine. When the weather is too cold for your engine to generate the proper amount of heat on its own, VW TDI glow plugs step in to provide the additional heat necessary to get the engine going and keep it going. Named for the visible glow of light they produce, these small items are invaluable in winter conditions. A VW glow plug relay responds to the colder temperatures around your vehicle and heats up to a high enough temperature to ignite the diesel within the engine. These devices work much like spark plugs in gasoline engines. Plugs range in size and attach with harnesses to ensure that they are ready when the chill of winter starts. Many plugs fit only certain model years, so be sure to check carefully for compatibility with your vehicle. Browse the vast inventory on eBay for VW TDI glow plugs to keep your diesel engine warm and starting reliably.