I ordered a new sending unit from Holland (95€), but the gauge needle still stays at max (5 bar). But thank you anyway
I recently bought the car and when I spotted the oil pressure gauge at max never drive it again, because I thought something could be wrong with the oil pump too!
So, I have never checked the gauge with the engine warm and I just watched a video at youtube showing an S2 with the oil pressure at max too (with cold engine) and then it dropped to 2 bar, after a few runs, with the engine warm.
I am starting to think there is nothing wrong with the car... only with it's owner!!
What about your Audi? How is the gauge working?