[A4] ] Overheating issue

[thejimrose]

the main fan in the a4 is clutch driven, it runs slowly when the car is
idling. it speeds up as the car gets hot. so a slow fan may be normal
depending on which fan you're looking at.

fyi a nice upgrade is the electric fan kit that evolution motorsport, spp,
etc sell.

i don't know if the  ac fan is  speed controlled or not - i would assume so.
however it should come on when you flip the ac on..