1.8tfsi oil capacity

Hey guys,
when i bought my car last year it went to audi specialist for oil change,few days later i checked the gauge and it was inbetween point b(in pic) so i toped it up and was worried its using oil but for the next 5k it stayed as is,than next i chnaged the oil myself and as per manual used 4.6 ltrs again it was inbetween point b so i toped it up to bring it to point a.
can anybody confirm do i need a new dipstick or just stick to 4.6 litrs .i have my raptor getting delivered mid march so no use for the car anymore but it has grown on me and i am gona keep it, maybe remap it for extra torque, upgrade speakers .
a3 2010 1.8tfsi

thanks hardy