Picked up 09 a3 8p Quattro 2.0t from estate sale. 165k miles. Service records show well maintained mechanically. Sat fro 6 months. Starts fine, idles well. Drove 3 miles, no issues. Ambient is 30f, does seems slow to warm. Did oil/filter change. Let idle for 10 minutes, reached 150f. Drove few miles again, seemed fine with temp about 160. Few dates later ambient 5f, start car to let idle, curious how fast it warms. Went inside to stay warm, at 8 minutes look outside and massive smoke cloud. Shut down car, let sit few moments, coolant at 125f. Restart, massive smoke. Check dipstick, nothing on it. Nothing and yes it was full after change.. Next day, put 3quarts in, dipstick shows 1/2 in hash. Start up, no smoke, drive 1/2 mile and it start massive smoke. Park car. Ambient was 25f. Pull dip stick, nothing on it. Check tail pipes, no oil accumulation. Next day, going to add oil again to move into garage, pull dip stick and oil level show over full, maybe 2+ inches up past full. So, anyone give me a clue what's happening? The only after markets parts visible is a cts pvc plate and catch can which is MT.

Hello Jay, 

Rather confusing, but first back to basics- check oil level on these only when the engine is cold. By using this procedure, you are comparing like for like levels. 
If this were mine, I would be checking the current oil level on level ground first thing in the morning after the car has been standing overnight ( obviously before starting). If it remains above the max. line then drain off the excess to get it back to the line. 
Then start the car, and check for any oil leaks. 
Obviously check coolant as well before starting. 
You will now be starting from a level playing field, and be better equipped to investigate the smoke situation.

Please let us know how you get on.

Regards,

Gareth. 

To amplify Gareth's comments, if you don't allow the oil to drain down to the sump after running the engine you will get a false low level reading on the dipstick, and may therefore be tempted to add more oil. If you then check the level later when the the oil has fully drained it will show a true high level.

Ok, think I understand, all self inflicted. My first German car after many years of US/Japan vehicle.  Bottom line is the surface the car was parked on was not flat but little less that 5deg slope.  That was enough to push the oil to one side and possible pile up in the valve cover with oil getting past valve stem seals.  When I measured over full, is was parked opposite. I ultimately drained over 7 qts from it.  Running it a bit,  the smoking continues to decline.  All my other cars that have been parked in the sloped area never showed the drastic change on the stick.  Lesson learned, dipstick only on flat surface for Audi.

Glad to hear you have solved the problem. Thanks for letting us know.