03D906265 : Oxygen sensor for Volkswagen Polo 9N

The oxygen sensor is an exhaust system component that measures the oxygen content of burnt gases to allow the engine control unit to correct the air-fuel mixture in real time. On the Volkswagen Polo 9N, this component is subject to high temperatures and can deteriorate over time, leading to increased fuel consumption or engine stuttering. Its replacement with a new part is fully in line with a rigorous restoration or maintenance approach to a classic vehicle. Restoring the original engine performance is thus within the reach of any enthusiast keen to keep their Polo 9N in its initial working condition.