3.2 FSI oxygen sensor investigation

[adiaudi]

Hi there.
I getting tired of lambda sond ussue... I got an info like on the scan, but mechanic has done long diagnosis and could not point it out which sond has to be replaced. Please take a look and let me know your suggestions, looking from the inside of the car.
Thanks.

[Umai Naa!!]

Bank 1, sensor 1.

It's the very first oxygen sensor in the exhaust, closest to the engine.

[adiaudi]

Thx.
Yes, but what side? Left or right? Exhaust has two pipes, one cat on each. Sensors are mounted before and after each cat....