Genuine OEM Volkswagen Exhaust Fluid Injector Feed Line, part number 5Q0131983AB. This critical line is responsible for safely delivering exhaust fluid, such as AdBlue or Diesel Exhaust Fluid (DEF), from the reservoir to the exhaust fluid injector. It plays a vital role in the vehicle's selective catalytic reduction (SCR) system for emissions control. This line is routed within the underbody and engine bay, connecting the fluid reservoir to the injector. Weighing 0.284 kg, it is constructed from materials resistant to corrosive fluids and high temperatures. Using a genuine OEM feed line ensures leak-free operation, proper fluid delivery, and the effective functioning of the emissions reduction system.