you know that feeling you get that something is just not right and it isn't until you see or read somewhere it hits you what it is well it just happened to me,
My S3 always seemed to run hot , great heater thought nothing of it until now as had striped thermostat housing of and no thermostat was in place!!!! The engine was knackered and it was a PO bodge to keep it running cool by taking it out just long enough for me to have the engine pop on me no wonder it ended up smoking like a battleship it explains so much .
At least I now have a load if parts and a new engine(second hand checked) can't wait to see the innards to see why it been budged by PO and now I can say ahhhhhhhh haaaaaa !!!!