Steering wheel wobble on 2018 RS6

[Dooce]

Hello all - I am a newbie to this forum with a 2018 C7 RS6 Performance.

Steering wheel and car have been wobbling at between 65-80 mph. I was told it was the front wheels so had them re-circumferenced. This did not solve it. Then I was told front discs are buckled so they got replaced with new Audi front discs and pads, still wobbles…….really frustrating.

Does not happen under braking or acceleration just when cruising at 65-80 mph, no wobble or shaking below or above that speed range.

Any advice welcome

Thanks Dooce