So i have my new A3 SB 2.0 S-Line, i have done less then 50 miles (i think) so far, but i have noticed when the car is switched off something is still running (radiator fan i guess) and i can smell something, and it is hot under the bonnet. Smells like something hot is burning something or when something gets heating. hard to describe. Water is full to the max level. temperature on the gauge is 90 degree. Is this normal? (never had a new car before) Just wondering something is not as it should be.