2007 BMW 328xi Code P0056 and P2570

This isn't a quick and easy fix. I feel the P0056 (heated O2 sensor bank 2, sensor 2 may be the issue causing both codes. What should be done is to have the computer scanned with a live scanner so you can check the sensor as it's working. Do you have access to such a scanner? Also, if I recall the sensor is fused. Have you checked fuses?

Where is the fuse located and what's the fuse number I should check?

I don't have a listing for the fuses. Do you have the owner's manual? If not, do a check of all fuses under the dash and the hood.