Mack89

Hi, I have a juddering on my Audi A6 C7 2012 CVT transmission on uphill even a slightly one, on even road or downhill its change the “gears” faultlessly. I have change the lower control arms and the ball joints, the gearbox oil as I thought was contaminated and still have the same judder, today I have checked the left axle as I still have a clunk noise on the left passenger side on small potholes or uneven road ,so I have rotate de axle back-forward and its move with a click sound, is that could be a sign that the axle its bad and it does judder and clunking on potholes ? I have added a video of the axle move and clunking. I could not upload the long video but I hope it show the problem IMG_3683.mov

Hi, I’m new here and new in Audi World,few days ago I’ve search for errors with VCDS my Audi A6 C7 CVT gearbox and it comes up with error P1857 00 Error Message from Ecu after I notice a jerking/shaking while move from full stop mostly on uphill,but apart of that it works as new.As far as I search for this error it might related to MAF sensor bad reading which might can cause some intolerances to the transmission also.Mention that the gearbox was rebuild few months ago due to not go in reverse gear.I’ve attached 2 pics with VCDS outcome DTC’s Is that should be the case or there could be something else? Thanks