Sorry to kick off my first post with a moan. I have been lurking here for a couple of years as a guest but would really appreciate any help.
I bought an Audi Approved S4 V8 avant last August which had been registerd 4 months earlier (I previously had an S3). In the first month of ownership and allowing for me to get used to some of the quirks of this particular model (high clutch bite-point etc) I brought it back to the stealer with a few things that didnt feel quite right.
First off the gear shift grinds at the end of the throw into 2nd, 3rd and 4th and if trying make a quick (not GP) getaway the car remained stationery while the engine revved away.
As you might expect I got the usual stealer response of them not being able to reproduce the faults etc until I suggested one of their senior techs take it home for the night.
On the transmission issue they reckoned they had it fixed (er not) and on the second issue a new clutch and flywheel was replaced

This is getting long winded so I will truncate it to say that the car has been back with the stealer once or twice a month with the ongoing transmission grinding and other minor faults. I have also had the ECU light come on twice and both times the car had to be recovered to the stealer. This was something to do with lose bolts on an inlet manifold. Audi have also updated throttle software and last week updated software on the transmission (car is manual

I am now seriously pi$$ed off to the point that I no longer want the car as a result of the faults and the uncertainty around its reliability. Clearly if I try and sell the car most people would run a mile and or I will be savaged by depreciation because of this.
The car is currently awaiting a back to back test by Audi UK before entertaining any conversations around rejection etc.
Anyone got experience of what to do in this situation ?
Thanks in advance.
I have now