transfer case, limp-home operation - probably secondary...5F02 - i think is secondary generic description for speed sensor...
5DD0 and 5E44 are worrying me... one is overvoltage... this could be primary or secondary... once the code is cleared, i wonder if it comes back...

the speed sensor, rear right - that needs to be checked further, as this problem may contribute to many othe codes and other issues...

to check the speed sensor, you can do a multimeter thing but since you don't have the tools, you can try to swap the sensors around, to see if the error follows the sensor or if the error stays with the location...

on the other hand, you may just throw parts at the issue in hopes to solve the problem - if you are going for the speed sensor, make sure you buy Original BMW sensor or a reputable manufacturer, like Bosch or whatnot... do NOT go for a cheap chinese crap, you will regret the purchase and will lose time...

to replace the speed sensor, pull the wheel off, then pull the sensors from the hub - there a few write-ups on the forum... remember, the key thing here is the brand name speed sensor, not chinese crap...