Noticed this in another post and would check with your repair if he's looked at this as the source of your problem?
Make sure your VCDS is not set to 00000. If it is, change to something like 12345 then;
Plug in VCDS.
Drive below 20 kph in a straight line for a short distance.
Then, whilst driving, turn the steering one turn to the right and one turn to the left.
Straighten the steering wheel and stop. Keep engine running.
Do not touch the steering wheel.
Using VCDS,
Select 03 Brake electronics.
Security access 16
Enter 40168 to enable basic settings.
Click “Do it”
Select Basic settings 04
Group 060
Click “Go”
Activate the basic setting
Click ON/OFF/NEXT
If successful, Field 2 will say “OK”.
Click “Done”, “Go back”
This means the controller has learned the zero/straight ahead position.
To check it has worked go to Measuring block 08.
Group 004
Click “Go”
Field 1 value must be between -1.5° and + 1.5°
Click “Done”, “Go back”
The car should now be good to go.