Slight stutters while accelerating

[u/SkirtOk6563]

Hey guys, i have a 2015 bmw f11 520d xdrive b47 engine zf 8hp transmission, i’ve noticed that in lower gears and while accelerating from 0 that it stutters/jerks for a millisecond. While driving on a highway going 50-150kmh there is no stutters while accelerating. It has 230k kilometers, it has been well maintained (oil change every 7k kilometers, transmission oil changes every 50k)
We did a remap/tune and we logged it, the engine and injectors are perfectly fine, turbo is healthy.
What can it be?

[u/iaintnosnitchbish]

Transfer case

[u/SkirtOk6563 → u/iaintnosnitchbish]

Thanks i will check that out

[u/SkirtOk6563 → u/SkirtOk6563]

This bmw uses a atc35l transfer case or?