Originally Posted by Hanzoligen
BL = most likely DRL light ("Begrenzungslicht" maybe) (AE undimmed)
Normally it's 'Bremslicht' oder 'Bremsleuchten', this is the only case where it differs (das war zumindest immer meine Meinung...)
Bremsleuchten = breaking lights
I found out how to change brightness on my 2011 E91, with a NFRM / FRM3_E89.C32
=> changed from 0A,D7 to 0C,2C
=> changed from 06,38 to 0C,2C
sometimes you have to switch the bytes in order to get it working porperly. Just watch at the layout of the bytes first.
It's much easier to change the values with NCSDummy instead of coding/reading/recoding them to the car.
Thanks to onebadmofo, I googled around to solve this problem for me and found this topic. Usually I am on ********* forum.