1.4 Petrol Engine 8W0121081BE Coolant Vent Hose Breather Line Radiator Pipe for A4 B9 A5 S5 Coupe Sportback 8W0 121 081 BE

Part Number: 8W0121081BE—for A4 B9, A5, and S5 with a 1.4 Petrol Engine. Function: This vent hose is part of the engine’s cooling system, helping to release excess coolant vapor and pressure to prevent overheating. Compatibility: Fits A4 B9, A5, and S5 models with a 1.4 Petrol Engine. Location: It connects the engine’s cooling system to the radiator or expansion tank, managing pressure and coolant flow. Replacement: When replacing, make sure the hose is securely attached to avoid coolant loss or pressure issues.

Manufacturer: ‎WKNYSYK Brand: ‎WKNYSYK Model: ‎WKNYSYK123 Item Weight: ‎1.76 ounces Package Dimensions: ‎1.18 x 0.79 x 0.39 inches Item model number: ‎WKNYSYK123 Manufacturer Part Number: ‎WKNYSYK123 ASIN: B0DY4VP78J Date First Available: February 22, 2025