Does the Oxygen Sensor Need Regular Cleaning?

[CharlesMarie]

The first cleaning of the car's oxygen sensor should occur after driving approximately 5,000 kilometers. Subsequent cleanings should be determined based on specific driving conditions. Alternatively, regular cleaning may not be necessary, and the sensor can be directly replaced after driving around 100,000 kilometers. Oxygen sensor cleaning steps: 1. Remove the oxygen sensor and soak it in a solution of 5-10% ferric chloride with an excess of hydrochloric acid. The exact ratio depends on the condition of the sensor's surface. Soak the oxygen sensor in the solution for 10-15 minutes, then remove and rinse with water. Ensure the four surrounding holes are clear, and when viewed from the bottom, the internal carrier should appear white after cleaning. 2. If the cleaning is not satisfactory, repeat the process until the white carrier becomes visible.