Genuine OEM Volkswagen Heat Exchanger Coolant Pipe, part number 2E0819911B. This pipe is a critical component in the vehicle's heating and air conditioning system, responsible for directing coolant to and from the heat exchanger. It ensures efficient heat transfer for cabin climate control. Weighing 0.035 kg, this pipe is designed for precise routing within the HVAC assembly. Using a genuine OEM coolant pipe ensures correct material composition and exact routing geometry, preventing leaks and maintaining optimal system performance under varying temperatures and pressures.