Overheating! Thermostat Stuck Closed

Well, my first significant issue has occurred since owning this car last weekend.... About 10 miles from home on my way to my brother's wedding, I noticed the A/C stopped working, thinking the A/C pressure sensor might have gone again I thought nothing of it. Then a few moments later, the cluster when into full Christmas tree mode and "over heating" warning flashed up. Immediate I pulled over and cranked the heat on full blast. I gave it a few mins to cool back down and then shut off the car for about 10 mins. After a few calls and scanning the car with my OBDEleven (no codes found) we came to the conclusion the thermostat was stuck closed. Unlike my previous B5 S4 where it was stuck open, the B8's are know for failing closed. Obviously a very stupid design, but as Audi can't seem to design any engine that doesn't go through thermostats every 40-60k, I'm not really surprised. Long story short, turned around made it home with the heat on full blast and kept the temps below 220F. Jumped in our 2003 Toyota Highlander and made it to the wedding just fine.

As I know most of the part are likely to be replaced again in a few years down the road, I figured I would give FCP Euro and their Life Time Warranty a try. I've heard nothing but good stuff...

​The following has been order:

• Audi VW Cooling System Service Kit
  • Thermostat (758185)
  • 1 gal Engine Coolant (VAG-G013A8J1G)
  • Engine Coolant Recovery Tank Cap (FEB-40722)
  • Expansion Tank Cap Gasket (VAI-V102598)
• Water Pump - 06E121018F
  • It is recommend to replace this while doing the thermostat, so I might as well.  
• 6x Fuel Injection Nozzle O-Ring Kit - 06E998907E
• 6x Upper Intake/Supercharge Manifold Gasket - 079129717D
• Supercharger Oil - G070000A1
  • Supercharge has to be removed, so might as well change the oil as preventative maintenance 
• PCV Valve Hose - 06E103213
• 4x Coolant Pipe O-Rings
• 2x Throttle Body Mounting Gaskets
• MercRacing Heat Exchanger
  • To future-proof if I got dual pulley in the future. 

And for another weekend project:

• ​Audi DSG Transmission Service Kit - 540152 
  • Auto Trans Filter (VAG-0B5325429E)
  • Auto Trans Filter O-Ring (VAG-WHT003379)
  • 2x Auto Trans Oil Pan Gasket (VAG-0B5321371E)
  • Auto Trans Drain Plug Gasket (VAG-N0138275
  • 7l of Dual Clutch Transmission Fluid (FEB-39070)

​The parts are likely going to take a week or two to get here so until then, the S4 going to experience its longest time being parked under my ownership...