2009 s4 avant auto gearbox

[Andy2502]

Hi guys. Great forum even if a little dated. I recently purchased a 2009 s4 avant which I love to drive. Apart from the auto gearbox. What happens is that when you go to pull away sharply it jumps out of 1st to neutral and shows the dreaded gearbox fault message on the dash. Gearbox fault cont to drive no reverse it will engage into an even no off gear ie 2nd 4th etc and continue to drive but I usually pull over ASAP and switch off the ignition. Upon this all comes back on as if there wasn't any fault. Worried someone is going to run into the back off me pulling away and this happens. Have tried a few places around the Glasgow area to see if anyone has a fix. Mackies couldn't find anything wrong and wanted 3 to 4 g to fix. I had the mechatronic unit done 6mths ago and it did improve but after reading many forums I believe there is another circuit board that can be replaced in the gearbox itself so can anyone help or suggest someone in Glasgow or surrounding areas who does this kind off work as know this a prominent audi problem.. many thanks