2009 A3 automatic hatchback makes bad clunking noise when engaging/disengaging drive
 

As the title says, when I shift from either park or nuetral into/out of drive there is a clunck, a 1-2 second delay, then another very large clunking noise (sometimes multiple) accompanied by a small jerk, and then everything works perfectly. It shifts just fine while driving, and is silent while going from park to reverse. But it also makes the same noise when coming to a complete stop, whether I'm in drive or neutral.

It sounds and feels like the engine/transmission trying to activate but having a hard time.

I have an appointment with an Audi mechanic next week, but wanted to see if anyone knew what the issue might be.

Any help would be appreciated!

Edit: here is a video: https://www.dropbox.com/s/wb9p37mqu4z7j9v/VID_20190614_144901.mp4?dl=0

Is it the DSG/S-Tronic? If so, could be the clutch. Have you checked for codes on the transmission yet?

If you have access to VCDS, then you could reset the transmission. See this website: VW 02E DSG Gearbox DQ250 , DQ500 , DQ501

If you take it to a dealer, there's a good chance he'll want you to replace the entire transmission ($6000+ new). Or, if you can DIY or find a willing mechanic, swap out the solenoids. They are cheap.