Yea right, I totally got what you're saying, I was also shocked until my first service came up, afterwards the sales team told me that on every oil change 10L of quantity is required for an audi A4, then I did listened it at an expert review video of Pakwheels, on that video also owner said the same thing that audi A4 requires atleast of 10L of engine oil. Below is the link of the video also :
Kindly check the video when you have time 
After listening that, this was the main reason to sell the car as maintanance was really expensive for me, still though i'll say Audi is a great car and is an affordable brand, keep the local ones aside and go for Audi
@usman_arooq2
