A8 D2 / 2.5 TDI oil lamp

Moin,

I've got some exciting technical questions with you again... I have now finished the first 15,000 km and am still very satisfied with my thickness. Nevertheless, I now have a new problem where I would like to hear your opinion.

I had the A8 undergo a large inspection after the purchase and of course also an oil change with filter etc. ==References== They put out longlife there and put in 5,5l SAE 10W-40. I'm not a fan of longlife that's why I thought it was okay to change oil once a year, and that's why it fits. A week before the small inspection, the lamp lit for the first time. I thought the car was wrong and I'm going back. After a few km of engine off and on again -> everything is back to normal.
Then this happened again during the ride... The next day it was gone again.
Then change oil and since then I have almost always on the lamp. Mostly right after starting... But sometimes it doesn't. Here's a picture:


Unfortunately, I don't have a reader yet and can't tell you exactly the error... ==References== the sensor? Because right after the oil change, that shouldn't happen, right? The bill says 5.5l again.

And if necessary. doesn't have to say that, but if I had measured oil before the change the other day I always felt that there was too much Ök in it ... but with me outside the door he is in fact somewhat crooked towards the measuring rod. Now he's in the underground garage, and tonight I can see what the oil measuring rod indicates. But do you know that the orange area does not show exactly between the min / max respectively. ==References== a lot of swings? (sounds like chatter? :P)

Thanks for the help.
--God