Hi sorry if you have been asked this before not very good on these things.
I had my steering rack changed all good there but since it's been fitted I have had problems with the angle sensor.
I have changed it for the same code one (4H0953568K) but still have the same problem saying that the airbag is not working and still showing the steering wheel on the dash all in yellow. Now the garage is saying that the angel sensor has to be new from Audi and the steering wheel functions are not working or lighting up. Sorry, it's long.

Audi A6 c7 2016 

This is the part hope this helps.

5 hours ago, garethjj said:

Hi sorry if you have been asked this before not very good on these things.
I had my steering rack changed all good there but since it's been fitted I have had problems with the angle sensor.
I have changed it for the same code one (4H0953568K) but still have the same problem saying that the airbag is not working and still showing the steering wheel on the dash all in yellow. Now the garage is saying that the angel sensor has to be new from Audi and the steering wheel functions are not working or lighting up. Sorry, it's long.

Audi A6 c7 2016 

This is the part hope this helps.

Hi it needs calibrating and coding again with VCDS or OBDEleven even if you bought a brand new unit from Audi it would still need the same, I suspect the garage did not lock the entering of the steering wheel when they fitted the rack it only has to be one tooth out to throw up the lights.

Steve.

Thanks Steve I will pass this on to my garage .