For contact , remarks , info or
suggestions:
Typical BMW Technical
Expressions
A - processed
vehicle speed signal
A - "out" (Aus)
AB - Airbag
ABL - Brake
system warning Lamp (2 color)
ABS - Anti-lock
Braking System
AC - Air Conditioning
ACC - Active Cruise Control
ACS - Active Comfort Seats
ADB(X) - Automatic
Differential Braking
ADS - engine intake air control
ADV - windshield
wiper pressure control
AEGS - Automatic
Electronic Gearbox Control
(also EGS)
AFM - Air Flow
Meter
AGD - suction
silencer
AGR - emission
reduction
AGS - Adaptive
transmission control
AG - Automatic
Gearbox (transmission)
AHK - Active rear-axle
Kinematics
AHK - trailer hitch
AHM - trailer Module (not for US models)
AHPS - Advanced
HPS
AIC - Automatic
Interval Control (rain
sensor)
AKF - activated
carbon canister
AKS - Active head
restraint
AKS - pressure
regulating device
ALC - Automatic
Light Control
ALR - Automatic
Lamp Range Adjustment
AMM - Air Mass
Meter
AMP - radio system AMPlifier
ARI - car
radio information system
ARS - Active Roll
Stabilization
ASC - All
Season traction
ASC-EZA - ASC
w/ engine timing and injection intervention
ASC+T - ASC+
Traction control
ASK - Audio System controller
(Kontroller)
ASR - self
starter block relay
AST - Automatic
Slip control (marketing term)
AT - remanufactured
part
AT - Antenna
ATF - Automatic
Transmission Fluid
ATL - exhaust
gas turbo charger
AUC - Automatic
air recirculation
AUT - AUTomatic
transmission
AVT - Antenna amplifier
Tuner
AZD - tightening
torque specifications
A/D – Analog/Digital
B - Benzene (gasoline)
BAT - BATtery
BC - Board Computer
BC1 - Body Controller 1
BL - Brake
Light
BLS - Brake
Light Switch
BMBT - Board Monitor
BS - Block diagram
BST - Battery
Safety Terminal
BVA - Brake
pad wear indicator
BZM - center console control center
BZMF - center console control center, rear
CAN – Controller Area
Network (Multiple ECU Controller)
CAN-Bus - Controller
Area Network (bus)
CANH-Bus - CAN bus, High
CANL-Bus - CAN bus, Low
CANP - fuel
tank ventilation valve
CAS - Car
Access System
CBC - Corner Braking Control
CBS - Condition
Based Service
CCM - Check Control
Module
CD - Control
Display
CDC - Compact Disk Changer
CDS - CD player
CEL - CELsius
CIM - Chassis Integration
Module
CO - Carbon monOxide
COMBI – Electronic Instrument Cluster
CON - CONtroller
CU - Copper
CVM - Convertible top Module
CVT - Constantly
Variable Transmission
CW - drag
coefficient
D1 - Xenon light/
gas discharge
D-Bus - Diagnosis
bus (same as TXD)
DBC - Dynamic
Brake Control
DBS - Dynamic
Braking System
DCS - Dealer Communication
System
DE – Diagnostic
Unit
DD - Dynamic
motor Drive
DDE - Digital Diesel Electronics
DIN - German
industrial standards
DIS - Diagnosis and Information System
DISA - Differential
air intake control
DIVA - continuously
variable length intake
runners
DK - throttle
housing/valve
DKB - throttle
w/ brake intervention
DKE – Throttle Increase
DKI - throttle
position
DKR - throttle
reduction
DKT - throttle
position signal
DKV - preset throttle
position value
DME - Digital Motor Electronics
DM-TL - Diagnostic Module Tank Leakage
DOHC - Double
Over Head Camshafts
DS - gasket
set (from ETK)
DSC - Dynamic
Stability Control
DSP - Digital Sound Processing
DTC - Diagnostic
Trouble Code (SAE)
DTC - Dynamic
Traction Control
DWA - theft
deterrent system
DWS - tire
pressure Warning System
DZM - revolution
counter
E - "in" (Ein)
EBA - installation
instructions
EBV - Electronic Brake force proportioning
ECE - European
market version
ECM - Engine Control
Module (SAE term)
ECU - Electronic Control Unit
EDC - Electronic Damper Control
EDR - Electronic throttle control
E-KAT - Electrically heated catalytic converter
EZA - see
ASC-EZA
ECM - Engine Control
Module (SAE term)
ECO - Controller for I-Drive system
EDC - Electronic Dampening Control
EDC-K - Electronic
Dampening Control - Continuous
EDK - Electronic throttle valve
EDS - pressure
regulator
EFH - Electric window lifter
EGS - Electronic transmission control
EH - Electronic-Hydraulic
EHC - Electronic Height Control
EKM - Electronic body Module
EKP - Electric fuel Pump
ELV - Electronic steering lock
EM - Electro-Mechanical
EMF - Electro-Mechanical
parking brake
EML - Electronic Motor Load regulation
EMV - Electro-Magnetic
sensitivity
EO - Electronic Parts
Catalog
EPROM - Erasable/
Programmable chip Memory
ETK - Electronic parts catalog
ETM - Electrical
Troubleshooting Manual
ESS - Electronic anti-theft device
EV - injection
Valve
EWS - Electronic drive-away protection
FB - Function
description
FBC - Fading Brake
Control
FBD - remote
control services
FBZV - radio frequency
locking system
FGR – Vehicle Speed Control (Cruise Control)
FH - window
lifter
FHK - rear
Heater/ air conditioner
FLC - automatic
Light Control
FRU - Flat Rate
Unit
FS – Crash Sensor
FZV - central lock
receiver
GAL - speed dependent
sound volume
GM - General
Module
GMR - yaw
moment control
GPS - Global Positioning
System
GRII - cruise control
GRS - rotation
Rate Sensor
GS – Belt Tensioner
GWK - torque
converter lock-up control
H - "rear"
(Hinten)
H2 - Xenon headlights
HA - rear
Axle
HC – Hydro Carbon
HD - Heavy Duty
HDC - Hill Decent Control
HFM - Hot Film air mass Meter
HG - manual
Gearbox (transmission)
HKL - Hydraulic
trunk lid Lift
HLM – Hot Wire Air Mass Meter
HPS - Head
Protection System
HR - Heater
control (
HVA - Hydraulic
Valve Adjuster
Hz – Hertz (Cycle)
I-Bus - Information bus
IB - Interior
lighting control signal
IHKA - automatic
Heating and A/C
IHKAF - IHKA w/ micro filter
IHKR - regulated
Heating and A/C
IHKRF - IHKR w/ micro filter
IHKS - standard
Heating and A/C
IHPD - Internal
High Pressure Deformation
IHR - Integrated
Heater control
IKE - Instrument cluster
Electronics
ILH - Interior
Lighting, rear
ILV - Interior
Lighting, front
IMS - Instant Mobility
System
IR – Infrared
IRS – Infrared Locking System
ISC – Idle Speed Control
ISIS - Intelligent Safety Integration System
ISN - Individual
Serial Number
ISOFIX - standardized
mounts for child restraints
ITS - head
airbag assembly/ Inflatable
Tubular Structure
IVM - Integrated
power supply Module
K-Bus - body
bus (Karosserie)
KAT - catalytic
converter
KATON - converter
creating (signal)
KD - Kick-Down
KHI - interface for headphones
KL - terminal designation
KL15 - run bus (ignition
switch run position)
KL30 - battery
bus (hot at all times)
KL31 - ground
bus (chassis ground)
KL50 - start bus (ignition start position)
KLR - accessory
bus
KO - compressor "on" signal
KOMBI - instrument cluster
KOREL - compressor relay
signal
KR – Contact Ring
KSK - Knock
Sensor
KVA - fuel
consumption signal/value
KW - crankshaft
KW - KiloWatt
LCM - Lamp Check Module
LDP - Leak
Diagnosis Pump
LEV - Low
Emissions Vehicle
LEW - Lateral
acceleration sensor
LHD - Left-Hand
Drive
LIN -
Local Interconnect Network
LKM - Lamp control
Module
LL - closed
throttle
LM - Light
Module
LMM - air flow
meter/sensor
LMR - Light
alloy wheel
LRA - vertical
headlight aiming
LSM - steering column memory
LSZ - Lamp Switching
center
LVA - air supply
system (for EHC system)
LWR - vertical
headlight aim control
LWS-5 - steering angle
sensor
M-Bus - IHKA/IHKR
stepper motor bus
MAL - center armrest
MBC - Maximum Brake
Control
MDK - Motorized
throttle valve/system
MFL - Multi-Function
steering wheel
MFC - Multi-Function
Controller
MFU - Multi-Function
Clock
MID - Multi-Information
Display
MIL - Malfunction
Indicator Lamp (SAE), "check engine" Lamp
MIR - Multi-Information
Radio
MMC - Multi-Media
Changer
MoDiC - Mobile
Diagnostic Computer
MOST - Fiber Optics Connection
MOST-Bus - Media Oriented
System Transport bus
MRS - Multiple Restraint
System
MSR - engine drag
torque Regulation
MV - Magnetic
Valve (solenoid Valve)
n-ab - rotational speed, transmission (rpm)
n-mot - rotational speed, engine (rpm)
NAVI - Navigation
module
NG - New Generation
(as in N73 engine)
NG - tilt sensor
NOX - Nitrogen
Oxides/ exhaust gas recirculation
NSD - rear
muffler
NSL - rear
fog Lamp
NSW - fog
lamp
NTC - Negative
Temperature Coefficient
NW - camshaft
OBC - On-Board
Computer
OBD - On-Board
Diagnosis (SAE)
OPS - Optical Programmier System
OPPS - Optical Programmier und Prüf System
P/N – Park/Neutral position
P-Bus - Periphery bus
PB - Pin assignments
PBS - Parts
Bulletin System
PDC - Park Distance
Control
PGS - Passive
Go System
PM - Power Module
PP – Impact Pad
PTC - Positive
Temperature Coefficient
RLS - Rain-Light
Sensor
PWG - Pedal
position sensor/ potentiometer
RA - Repair
instructions
RAM – Random Access Memory
RAL - Aluminum
wheels
RAL - standard
color
RDC - tire
pressure Control
RDS - Radio Data-broadcast
System
RDW - tire
pressure Warning
RHD - Right-Hand
Drive
RM - Relay
Module
ROZ - Research
Octane rating/ fuel grade
RPA - tire
puncture warning
RPS - Rollover Protection System
RS - Repair
kit
RSW - back-up lamp
RXD - wake-up
Diagnosis line
RZV - direct stationary
ignition
SASL - Satellite,
A-pillar left
SASR - Satellite,
A-pillar right
SAV - Sport ACTIVITY Vehicle
SB - fuse
assignments
SBE - Seat occupancy
detector/sensor
SBFH - Seat module, passenger-side rear
SBSL - Satellite,
B-pillar left
SBSR - Satellite,
B-pillar right
SBT - SI techniques/
tech reference information
SCA - Soft Close Automatic/Actuator
SD - sliding roof
SD - silencer/
muffler
SE - Special Equipment
SES - voice recognition
System
SFAH - Seat module, driver's side rear
SFZ - Satellite,
vehicle center
SG - control
unit
SGS - Seat integrated
belt System
SHD - sliding/ lifting
roof
SHD - Sunroof
module (also SHDM)
SI - Service Information
SIA - Service Interval system
(ver. I, II, III, IV, etc.)
SII - Service Interval
Indicator
SIL - SILicon
SIM - Safety
Information Module
SINE - Siren/tilt
sensor
SKD - Steel sliding roof
SKHD - Steel sliding/ lifting roof
SM - Seat Module
SM/SPM - Seat/Mirror Memory
SMBF - Seat Module, passenger side
SMFA - Seat Module, driver's side
SMG - Sequential
Manual Gearbox
SP - Schematic
SRA - headlight/fog light cleaning
SRS - Supplementary
Restraint System
SSD - Steel sliding roof
SSH - Seat Satellite,
rear seat
ST - connector
views
Steptronic - transmission shift control
STVL - Satellite,
left front door
STVR - Satellite,
right front door
SVS - Speech processing System
SWR - headlamp
cleaning system
SWZ - Special tool
listings
SZL - Switch center, steering
column
SZM - central switch center Module
TAGE - door handle
Electronics
TCM - Transmission
Control Module
TD - engine speed signal (ignition pulse)
TD - Technical
Data
TE - fuel
evaporation control
TEL - TELephone
control unit
TEV - evaporative
purge control
THZ - Tandem master
cylinder
ti - Injector "on"
Time (duration)
TIS - Technical
Information System
TL - part throttle
/ load signal
TLEV - Transitional
Low Emission Vehicle
TMBFT - door Module, passenger side
TMBFTH - door Module, passenger side rear
TMFAT - door Module, driver's side
TMFATH - door Module, driver's side
rear
TP - Tandem Pump
TPS - Throttle
Position Switch/Sensor
TR - engine speed signal (rpm)
TR - TRansistor
TRG - fuel
level sensor
TRI - Technical
Reference Information (also SBT)
TRS - battery
isolation Switch
TSD - Torsional
vibration dampener
TSH - door lock
Heating
TSZI - Transistorized
coil Ignition system
TU - Technical
Update (as in M50tu)
TXD - Transmitting
Diagnosis line
U-batt - Battery voltage
U-vers - supply voltage
UERSS - rollover bar
URS - rollover protection System
USIS - Ultrasonic
passenger compartment Sensor
V - "front" (Vorn)
V - vehicle
road speed
VA - front Axle
VAT - front axle
support
VANOS - Variable
camshaft timing
VEP - distributor-type
injection Pump
VID - VIDeo
module
VL - full
load (wide open throttle)
VSD - front muffler
VVT – Valve
tronic
WBG - hazard warning
switch
WIM - Wiper
control Module
WK - torque
converter lock-up clutch
WSS – Wind Shield
WT – Valve
tronic control unit
Z - "central"
(Zentrum)
ZAB - ignition
fade-out (reduction)
ZAE - central Airbag Electronics
ZAS - ignition
starter switch
ZGM - central Gateway Module
ZK - cylinder
head
ZKE - central body Electronics
ZKH - cylinder
head cover
ZMS - dual-Mass
flywheel
ZV - central locking system
ZS - central lock
ZSD - center muffler
ZV - central locking system
ZVM - central locking
Module
ZWD - idle
control valve
