Lavida Octavia Fabia Front Oxygen Sensor 03C906262J Precise Control

Upstream O2 sensor is used to monitor the oxygen content in engine exhaust and feed back to the ECU to adjust the air-fuel ratio for combustion efficiency. OEM number 03C906262J, fits models such as Lavida, Octavia, Superb, etc. (also compatible with 0258006611/0258006612/24987914). Installation difficulty is medium. Common faults include carbon buildup or aging, leading to increased fuel consumption. When replacing, ensure power cut and avoid thread damage.