Captur Oxygen Sensor Issue

I had something similar with my Captur. I'm not sure about the engine, but the symptoms sound familiar. Have you checked the wiring to the sensor? Sometimes a loose connection can throw things off. It could also be the sensor failing after all those kilometers.

Thanks for the quick reply. Could you say which wiring you checked? Also, did the diagnostic scans point to the oxygen sensor, or were there other error codes?

Yeah, the scan pointed to the oxygen sensor, but the garage said it was likely the sensor connection. They wanted 95€ to replace it. I'd suggest a workshop, since the air-fuel ratio is important. They have the tools to find the issue.

Thanks. I'll get a mechanic to examine the oxygen sensor and wiring. Replacing the sensor fixed the error, and the fuel consumption is back to normal. Thanks again!