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 (from ETK)
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 (from ETK)
AGR - emission reduction
AGS - Adaptive transmission control
AG - Automatic Gearbox (transmission)
AHK - Active rear-axle Kinematics
AHK - trailer hitch (from ETK)
AHM - trailer Module (not for US models)
AHPS - Advanced HPS
AIC - Automatic Interval Control (rain sensor)
AKF - activated carbon canister (from ETK)
AKS - Active head restraint
AKS - pressure regulating device (from ETK)
ALC - Automatic Light Control
ALR - Automatic Lamp Range Adjustment
AMM - Air Mass Meter
AMP - radio system AMPlifier
ARI - car radio information system (from ETK)
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 (from ETK)
AST - Automatic Slip control (marketing term)
AT - remanufactured part (from ETK)
AT - Antenna (from ETK)
ATF - Automatic Transmission Fluid (from ETK)
ATL - exhaust gas turbo charger (from ETK)
AUC - Automatic air recirculation
AUT - AUTomatic transmission (from ETK)
AVT - Antenna amplifier Tuner
AZD - tightening torque specifications (in TIS)
A/D – Analog/Digital
B - Benzene (gasoline)
BAT - BATtery (from ETK)
BC - Board Computer
BC1 - Body Controller 1
BL - Brake Light (from ETK)
BLS - Brake Light Switch
BMBT - Board Monitor
BS - Block diagram
BST - Battery Safety Terminal
BVA - Brake pad wear indicator (from ETK)
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 (from ETK)
CEL - CELsius (from ETK)
CIM - Chassis Integration Module
CO - Carbon monOxide (from ETK)
COMBI – Electronic Instrument Cluster
CON - CONtroller
CU - Copper (from ETK)
CVM - Convertible top Module
CVT - Constantly Variable Transmission
CW - drag coefficient (from ETK)
D1 - Xenon light/ gas discharge (from ETK)
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 (from ETK)
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 (from ETK)
E - "in" (Ein)
EBA - installation instructions (from ETK)
EBV - Electronic Brake force proportioning
ECE - European market version (from ETK)
ECM - Engine Control Module (SAE term)
ECU - Electronic Control Unit
EDC - Electronic Damper Control (from ETK)
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 (from ETK)
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 (from ETK)
EO - component location
EPC - Electronic Parts Catalog (also ETK)
EPROM - Erasable/ Programmable chip Memory (from ETK)
ETK - Electronic parts catalog (also EPC)
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 (from ETK)
HC – Hydro Carbon
HD - Heavy Duty (from ETK)
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 (from ETK)
HVA - Hydraulic Valve Adjuster (from ETK)
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 (from ETK)
IKE - Instrument cluster Electronics
ILH - Interior Lighting, rear
ILV - Interior Lighting, front
IMS - Instant Mobility System (from ETK)
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 (from ETK)
LCM - Lamp Check Module
LDP - Leak Diagnosis Pump
LEV - Low Emissions Vehicle
LEW - Lateral acceleration sensor
LHD - Left-Hand Drive (from ETK)
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-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 (from ETK)
NSD - rear muffler (from ETK)
NSL - rear fog Lamp (from ETK)
NSW - fog lamp (from ETK)
NTC - Negative Temperature Coefficient
NW - camshaft (from ETK)
OBC - On-Board Computer
OBD - On-Board Diagnosis (SAE)
P/N – Park/Neutral position
P-Bus - Periphery bus
PB - Pin assignments
PBS - Parts Bulletin System (in TIS)
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 (in TIS)
RAM – Random Access Memory
RAL - Aluminum wheels (from ETK)
RAL - standard color (from ETK)
RDC - tire pressure Control
RDS - Radio Data-broadcast System
RDW - tire pressure Warning
RHD - Right-Hand Drive (from ETK)
RM - Relay Module
ROZ - Research Octane rating/ fuel grade (from ETK)
RPA - tire puncture warning (from ETK)
RPS - Rollover Protection System
RS - Repair kit (from ETK)
RSW - back-up lamp (from ETK)
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 (in TIS)
SCA - Soft Close Automatic/Actuator
SD - sliding roof (from ETK)
SD - silencer/ muffler (from ETK)
SE - Special Equipment (from ETK)
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 (from ETK)
SHD - Sunroof module (also SHDM)
SI - Service Information (in TIS)
SIA - Service Interval system (ver. I, II, III, IV, etc.)
SII - Service Interval Indicator
SIL - SILicon (from ETK)
SIM - Safety Information Module
SINE - Siren/tilt sensor
SKD - Steel sliding roof (from ETK)
SKHD - Steel sliding/ lifting roof (from ETK)
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 (from ETK)
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 (from ETK)
SWZ - Special tool listings (in TIS)
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 (in TIS)
TE - fuel evaporation control
TEL - TELephone control unit
TEV - evaporative purge control
THZ - Tandem master cylinder (from ETK)
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 (from ETK)
TPS - Throttle Position Switch/Sensor
TR - engine speed signal (rpm)
TR - TRansistor (from ETK)
TRG - fuel level sensor (from ETK)
TRI - Technical Reference Information (also SBT)
TRS - battery isolation Switch
TSD - Torsional vibration dampener (from ETK)
TSH - door lock Heating
TSZI - Transistorized coil Ignition system (from ETK)
TU - Technical Update (as in M50tu)
TXD - Transmitting Diagnosis line
U-batt - Battery voltage
U-vers - supply voltage
UERSS - rollover bar (from ETK)
URS - rollover protection System
USIS - Ultrasonic passenger compartment Sensor
V - "front" (Vorn)
V - vehicle road speed
VA - front Axle (from ETK)
VAT - front axle support (from ETK)
VANOS - Variable camshaft timing
VEP - distributor-type injection Pump (from ETK)
VID - VIDeo module
VL - full load (wide open throttle)
VSD - front muffler (from ETK)
VVT – Valve tronic
WBG - hazard warning switch (from ETK)
WIM - Wiper control Module
WK - torque converter lock-up clutch
WSS – Wind Shield (from ETK)
WT – Valve tronic control unit
Z - "central" (Zentrum)
ZAB - ignition fade-out (reduction)
ZAE - central Airbag Electronics
ZAS - ignition starter switch (from ETK)
ZGM - central Gateway Module
ZK - cylinder head (from ETK)
ZKE - central body Electronics
ZKH - cylinder head cover (from ETK)
ZMS - dual-Mass flywheel (from ETK)
ZV - central locking system
ZS - central lock (from ETK)
ZSD - center muffler (from ETK)
ZV - central locking system (from ETK)
ZVM - central locking Module
ZWD - idle control valve