This vehicle isn't offered in the US so my technical information is very limited. However, I'll try to help.
First, if it is possible take a pic and upload it for me to see. Next, most O2 sensors have the wiring manufactured into the sensor. Is the sensor wire there or not?
Here is a link that shows how one is replaced. See if it helps you locate the part.
Let me know.
Sunday, January 24th, 2021 AT 7:06 PM