its not easy to tell if it's the map sensor because on this thread

https://xoutpost.com/bmw-sav-forums/...s-codes-2.html

user is getting a mirad of different codes.

and on this thread

X5 35D 2011 Codes - Page 2 - Bimmerfest - BMW Forums

there is another user with different codes.

so you might get a combination of codes I guess it depends on what software you are running.

for me the codes are primarily

4862 Air system, Air to EGR mass flow, plausibility
i get this code after about 12 miles of driving every time. cleared it a dozen times so it's consistent

and this one
3F03 boost pressure sensor signal
I only got this code once after the dealer kept the car to change the frm module. Im assuming they left it to idle for a long ass time and that's how the fault got logged.

just want to leave this here so that if i fix it someone else can find it.