Oil capacity 6.9 L = 7.4 qt. If you leave your car overnight and check next morning you will see dipstick level is on the high mark with 7.4 qt. Putting 8 qt will not leave engine to breathe.
Engine capacity with oil filter change is 7.4 this what I put in . Always check dipstick on level ground sorry I miss stated in video . Making video and talking and doing all at same time sometimes causes me to make mistakes . I’m not perfect but I did state in video 7.4 is it’s capacity. Thank you for correcting me.
Umm just saying the dealers don't use the drain plug they suck the oil out of the dipstick tube. I have been doing this on my benz's w212 and w213 4 of them for a decade since it is a dealer method.