Here are a bunch of BMW abbreviations with German translations (sometimes it explains the abbreviation)
A – Processed Vehicle Speed Signal
AB – Airbag
ABS – Anti-Lock Braking System (Antiblockiersystem)
ACC – Active Cruise Control
A/D – Analog to Digital
ADS – Engine Intake Air Control
ADV – Windshield Wiper Pressure Control
AFS – Active Front Steering
AGS – Adaptive Transmission Control
AHPS – Advanced Head Protection System
AIC – Automatic Interval Control (Automatic Intervall Control/Regensensor)
AITS – Advanced Inflatable Tubular Structure see AHPS
AKS – Active Head Restraint System (Aktive Kopfstutze)
ARS – Active Roll Stabilization (Aktive Rollstabilisierung)
ASC – All Season Control
ASC+T – ASC + Traction
ASE – Advanced Safety Electronics
ASK – Audio System Controller (Audio-System-Kontroller)
AST – Slip Control (Marketing)
AUC – Automatic Air Recirculation
AWL – Airbag Warning Lamp
B – Benzine (used in engine codes)
BC – Board Computer
BLS – Brake Light Switch (Bremslichtschalter)
BMBT – Board Monitor
BMW – Bavarian Motor Works (Bayerische Motoren Werke)
BST – Battery Safety Terminal
BZM – Center Console Control Center (Bedienzentrum Mittelkonsole)
CAN – Controller Area Network
CBC – Corner Braking Control
CCM – Check Control Module
CIP – Coding Individualization and Programming
CVM – Convertible Top Module
D-Bus – Diagnosis Bus (TXD)
DDE – Digital Diesel Electronics
DIN – German Industrial Stadards (like our SAE)
DIS – Diagnosis and Information System
DISA – Differnential Intake Air Control (Differenzierte Sauganlage)
DK – Throttle Housing
DKI – Throttle Position
DME – Digital Motor Electronics
DM-TL Diagnostic Module Tank Leakage
DSC – Dynamic Stablity Control (Dynamische Stabilitats Control)
DSP – Digital Sound Processing
DTC – Diagnostic Trouble Code or Dynamic Traction Control
DWA – Theft Deterrent System
DWS – Tire Pressure Warning System
E-KAT – Electrically Heated Catalytic Converter
EBV – Electronic Brake Force Distribution (Elektronische Bremskraftverteilung)
ECO – Electronically Controlled Orifice
ECM – Engine Control Module (per SAE)
EDC – Electronic Damper Control (Elektronische Dampfer Steuerung)
EDK – Electronic Throttle Valve
EGS – Electronic Transmission Control
EH – Electronic Hydraulic
EHC – Electronic Height Control (Elektronische Hohenstands Control)
EKP – Electric Fuel Pump (Elektrische Kraftstoffpumpe)
EKM – Electronic Body Module
ELV – Electronic Steering Lock
EML – Electronic Motor Load Regulation (Electronische Motorleistungsregulierung)
EO – Component Location
EWS – Electronic Driveaway Protection (Elektronische Wegfahsperre)
FA – Vehicle Order (Fahrzeug-Auftrag)
FB – Functional Description (Funktionsbestatigung)
FBZV – Radio Frequency Locking System
FIRST – Fully Integrated Road Safety Technology
GAL – Speed Dependant Volume
GPS – Global Positioning System
GM – General Module (Grundmodul)
GMR – Yaw Moment Module
GRAV – Gewichtsreduzierter Aluminiumvorderbau (E60 Aluminum process)
GRII – Cruise Control
HDC – Hill Descent Control
HFM – Hot Film Air Mass Meter (Heibfilm-Luftmassenmesser)
HLM – Hot Wire Air Mass Meter (Hitzdraht-Luftmassenmesser)
HPS – Head Protection System
HUD – Heads Up Display
IB – Interior Lighting Control Signal
I-bus – Information Bus
IBS – Intelligent Battery Sensor
IHKA – Automatic Heating and A/C
IHKR – Regulated Heating and A/C
IHKS – Standard Heating and A/C
IKE – Instrument Cluster Electronics (Instrumentenkombination-Elektonik)
ISIS – Intelligent Safety Information System (Intelligentes Sicherheits-und Informations-System)
ISN – Individual Serial Number or Individual Control Unit Number
ITS – Inflatable Tubular Structure
KAT – Catalytic Converter
KATON – Converter Heating Signal
K-Bus – Body Bus
KBM – Body Basic Module (Karosserie-Basis-Modul)
KL – Terminal Designation (like KL15 is ignition positon on the key)
KO – Compressor “ON” Signal
Kombi- Cluster in German
KOREL – Compressor Relay Signal
KW – Crankshaft
LCM – Lamp Check Module (Lamp Kontrol Modul)
LDP – Leak Diagnosis Pump
LED – Light Emitting Diode
LEV – Low Emissions Vehicle
LIN – Local Interconnect Network
LKM – Lamp Control Module
LL – Idle or Closed Throttle Position (Leerlauf)
LRA – Vertical Headlight Aiming
LRE – Steering Wheel Electronics
LSE – Steering Column Electronics
LSM – Steering Column Memory
LSZ – Light Switching Center (Lightschaltzentrum)
LVA – Air Supply System
LWR – Vertical Headlight Aiming
LWS5 – Steering Angle Sensor
M-ASK – Multi-Audio System Controller (Multi-Audio-System-Kontroller)
MBC – Maximum Brake Control
MDK – Motorized Throttle Valve (Motorische Drosselklappe)
MFL – Multi-function Steering Wheel
MID – Multi Information Display
MoDiC – Mobile Diagnostic Computer
MOST – Media Oriented System Transport
MRS – Multiple Restraint System (Mehrfach-Ruckhaltesystem)
MRSA – Side Impact Sensor
MSR – Deceleration Slip Regulation or Engine Drag Torque Reduction (Motorschleppmomentregelung)
NVRAM – Non-Volatile Random Access Memory
OBC – On Board Computer
OBD – On Board Diagnostics
OC-3 – Occupant Classifier-3
OPPS – Optic Testing and Programming Systems (Optisches Pruf-und Programmiersystem)
OPS – Optic Programming System
ORVR – On Board Refueling and Vapor Recovery
PB – Pin Assignments
P-Bus – Periphery Bus
PDC – Park Distance Control
PTC – Positive Temperature Coefficient
PuMA – (Problem-und Mebnahmenmanagement Aftersales)
PWG – Pedal Position Sensor (Pedalwertgeber)
PWM – Pulse Width Modulation (Pulseweitenmodulation)
RAM – Random Access Memory
RDC – Tire Pressure Control (Reifen Druck Control)
RDW – Tire Pressure Warning System (Reifendruckwarnung)
RLS – Rain and Light Sensor
RM – Relay Module
RPS – Rollover Protection System
RXD – Wake-up Diagnosis Line
RZV – Direct Stationary Ignition (Rehende Zundspannungsverteilung)
SAC – Self Adjusting Clutch (Selbstnachstellende Kupplung)
SAE – Society of Automotive Engineers
SASL – Satellite A-Pillar, Left (Satellit A-Saule Links)
SASR – Satellite A-Pillar, Right (Satellie A-Saule Rechts)
SB – Fuse Assignments
SBE – Passenger Seat Occupancy Detection System (Sitzbelegungserkennung)
SBK – see BST (Safety Batterie Klemme)
SBSL – B-Pillar Satellite, Left (Satellit B-Saule Links)
SBSR – B-Pillar Satellite, Right (Satellit B-Saule Recht)
SCA – Soft Close Actuator
S/E – Send and Receive
SFZ – Center Vehicle Satellite (Satellit Fahrzueg Zentrum)
SG – Control Unit (Steuergerat)
SGM – Safety and Gateway Module (Safety Gateway Modul)
SGS – Seat Integrated Belt System (Sitzintegriertes Gurtsystem)
SHD – Sunroof Module
SIA – Service Interval Indicator (Service-Intervall-Anzeige)
SIM – Safety and Information Module (sicherheits-Informationsmodul)
SLP – Secondary Air Pump (Sekundar-Luft-Pumpe)
SMBF – Seat Module, Passenger (Sitzmodul Beifahrer)
SMFA – Seat Module, Driver (Sitzmodul Fahrer)
SMG – Sequential Manual Gearbox (Sequenzielles M Getriebe or Sequenzielles Manualles Schalt-Getriebe)
SP – Schematic
SRS – Supplemental Restraint System
SSBF – Seat Satellite, Passenger (Satellit Beifahrersitz)
SSFA – Seat Satellite, Driver (Satellite Fahrersitz)
SSH – Seat Satellite, Rear
ST – Connector Views
STVL – Door Satellite, Front Left (Satellit Tur Vorne Links)
STVR – Door Satellite, Front Right (Satellite Tur Vorne Recht)
SULEV – Super Ultra-Low Emissions Vehicle
SZL – Steering Column Switch Center (Schaltzentrum Lenksaule)
SZM – Switching Center Console (Schaltzentrum Mittelkonsole)
TCU – Telematics Control Unit
TD – Engine Speed Signal
ti – Injector “ON” time
TL – Part Throttle
TLEV – Transitional Low Emission Vehicle
TMBF – Door Satellite, Passenger Door (Tur Modul Beifahrer)
TMFA – Door Satellite, Driver (Tur Modul Fahrer)
TRS – Battery Isolation Switch
TSH – Door Lock Heating System
TU – Technical Update (like with engine codes)
TXD – Transmitting Diagnosis Line
URSS – see RPS (Uberroll Shultz System)
VANOS – Variable Camshaft Control (Variable Nocken-Steuerung or Variable Nockenwellen-Steuerung)
VL – Full Load – Wide Open Throttle (WOT)
VVT – Variable Valve Timing (Variable Ventiltrieb)
WK – Converter Lock-up Clutch
ZAE – Central Activation Electronics (Zentrale Auslose Elektronik)
ZCS – Central Coding Key
ZGM – Central Gateway Module (Zentral Gateway Modul)
ZKE – Central Body Electronics (Zentrale Karosserieelektronik)
ZV – Central Locking System
ZVM – Central Locking Module
ZWD – Idle Control Valve (Zweiwicklungs Leerlauf-Drehsteller)