SQ5 dynamic steering fault

[Barrie Driscoll]

2016 model SQ5. I’ve had a guy around to my house to produce a duplicate car key. Tragic really, as after an hour and a half and lots of laptop usage etc he could not do it. He left, and said that there was a fault showing on the steering but that it would ‘right itself’.  Of course, it hasn’t!   I now have a fault showing with the dynamic steering. The steering is heavier of course and steering wheel doesn’t centre. Also the ESC drive stability light & system deactivated and the auto stop/start immobilised. 
I’ve checked the fuses in the side of the dashboard but they are ok. It appears from a diagnostic tool that there is no communication with the dynamic steering so probably no power getting through. This is a late 2016 model so not the problem of two/three years ago. Could this be a common relay for these circuits?
 If so, then where would it most likely be located? Is the small square box accessed in the area under the bonnet, via a small square flap,  close to the windscreen area, located centrally a possible area to consider? Any ideas please? Any other suggestions?

[Roy Blue Audi]

Hi.

I have a 2017 A3 with similar fault with the steering not self centreing at higher speeds, there appears to be a tight spot from centre, which makes it difficult to keep in a straight line, although at lower (30mph) and below it all functions nicely. The garage cannot find any physical fault, like a semi seized UJ or ball joints

Any thoughts from you guys would be appreciated

 

[Steve Q]

With any electrical faults especially if the car has electronic power steering it's worth getting the battery checked as a failing battery can cause all sorts of electrical issues. 

[Barrie Driscoll]

Eventually, having considered the problem of not getting ‘centred’ on the steering wheel plus getting the fault light on the electric steering, I put the SQ5 into the main Audi distributor. They had to reboot/ reset the software/limits on the steering. £190 later and it’s been put right. It seems to be a weak point on these cars. No assistance whatsoever from Audi/VW U.K.  It was two days outside of its main dealer warranty. You make your own decision on how you see this. 

[Steve Q]

They should have do e good will. But same thing happened to my dad with the c5 I now have. 3 days out of warranty and the turbo blew. Audi paid half of the repair.