[BMWDi3sel]

Hello everyone! I've tried to look up these two codes and found 0 threads/help. Went to BMW and they told me to kick rocks unless I paid for them to diagnose the car.

I have a 2015 X3 28D. Scanned the computer and came up with codes P22AD and P22B2. Looks like it's something having to do with the O2 sensor.

Since the 28D is a 4 cylinder, it should only have 2 O2 sensors (or maybe just one?). An upstream and downstream sensor i believe. It says on the scan tool that it's Bank 1 sensor 2. Does anyone know which sensor that would need replacing? Unsure if it's up or down stream.

Reason i'm asking if it's up or down is that on FCP Euro they sell them only with labels of "Upstream" and "downstream" so I would like to know which one to buy without having to waste time swapping both.

[deyrag]

Sensor 2 is the downstream one.

[BMWDi3sel]

Originally Posted by deyrag

Sensor 2 is the downstream one.

Thank you so much!