This is an extension of the page: CAN-bus.
List of control unit abbreviations:
STML: headlight module adaptive adjustment left
LHML: headlight module for fan, LEDs, cornering lights, low and high beam left
STMR: headlight module adaptive adjustment right
LHMR: headlight module for fan, LEDs, cornering lights, low and high beam right
CAS: vehicle access module with including immobilizer
FRM: footwell module responsible for among others lighting and window control
FZD: roof module that controls the electric sunroof
CON: i-drive controller
JBE: junction box for among others the central door locking
PDC: park distance control
TBX: extension of i-drive controller for handwritten letters
IHKA: module for heating and ventilation
SMFA: driver’s seat module for among others electric seat adjustment with memory
HUD: module for head-up display operation in the dashboard
HKL: tailgate module for opening and closing
SMBF: passenger’s seat module for among others electric seat adjustment with memory
TRSVC: top rear side view camera for rearview camera and bird’s-eye view
TBC: Bluetooth telematics module
HU-H: head unit for radio, navigation, and communication
KOMBI: instrument panel
AMPT: amplifier for the radio
REMARE: module for pre-tensioning of the seat belts
REMALI: module for pre-tensioning of the seat belts
ACSM: airbag module
EKPS: fuel pump module
SVT: Servotronic active steering
SZL: steering column module where all steering column switches are connected
DSC: Dynamic Stability Control
SWW: module for blind spot and lane assistant
DME: digital motor electronics (engine ECU)
VTG: module for the transfer case of the X-drive
ICM: module to manage dynamic control systems, including the central information display, climate control module, radio, ABS, power steering, ride height, headlamp.
EGS: transmission module
GWS: gear selection lever
KAFAS: module for the camera including lane recognition and high beam assistant
EMF: electric parking brake module
ACC: module for active cruise control