021 906 265 AG: Oxygen sensor for Volkswagen Passat B4 and B5

This oxygen sensor is a new part intended for replacement on Volkswagen Passat B4 and Volkswagen Passat B5. It plays an essential role in managing the air-fuel mixture by measuring the oxygen content of exhaust gases, thereby ensuring the proper functioning of the emission control system. In the context of restoration or maintenance of a classic vehicle, its replacement allows you to restore engine performance in accordance with original specifications. An essential part to keep these Volkswagen models in optimal working condition.