Tube.
Pipe that is part of the engine cooling system. Breather. Center hose. Connector. Coupling. Engine Coolant Pipe. Feed line. Return hose. Spacer. Water inlet.
Engine Coolant Pipe
Fits A8
3.0 LITER W/O PLUG-IN HYBRID, MAIN, lower. 3.0 LITER W/PLUG-IN HYBRID, MAIN, lower.