## Common abbreviations used by BMW

These abbreviations are given as a guide, many are not used in this manual, but may be come across when dealing with BMW factory information.

A | Automatic transmission cars
ABE | General operating permit
ABS | Anti lock brake system
AC | Air conditioner
ADA | Atmospheric pressure dependant full load stop
AEGS | Independent electronic transmission control
AGR | EGR (Exhaust gas recirculation
AHK | Active rear axle kinematics
AKF | Activated carbon filter
AKI | Anti knock index
AKS | Controlled pressure windshield wiper
ALDA | Absolute charging pressure dependant full load stop
API | American Petroleum Institute
ASC | Automatic Stability Control
ASC+T | Automatic Stability Control plus traction control
ASU | Special exhaust inspection
ATF | Automatic transmission fluid
AUC | Automatic re-circulating air control
BC | On board computer
CD | Compact disc
CDN | Canadian Version
CO | Carbon Monoxide
CS / CSA | Coupe sport / Coupe sport automatic
CSi | Coupe sport injection
CZ | Cetane number (ignitability of diesel fuel)
d | Naturally aspirated diesel engine
DDE | Digital Diesel Electronics
D-Jetronic | Pressure sensored fuel injection system
DIN | German industrial standard
DKS | Throttle valve motor
DOHC | Dual Over Head Cam
DOT | USA department of transport
DWA | Anti theft system
DZM | Tachometer
e | ETA engine (efficiency optimized engine)
ECE | European commission for Europe
EDE | Electronic Damper Control
EEPROM | Electronically erasable programmable read only memory
EGR | Exhaust gas recirculation
EGS | Electronic transmission control
EH | Electronic / Hydraulic transmission
EKP | Electric fuel pump
ELAB | Electric shutoff solenoid
EM | Electro Mechanical
EML | Electronic engine output control
ETM | Electrical troubleshooting manual
FD | Fader - radio
FH | Window regulator
FHK | Rear passenger area heater
GAL | Speed dependant volume control
GM | Basic Module
H | Speed classification for tires, up to 130 mph (210 km/h)
HC | Hydro Carbon
HD | Heavy Duty
HR | High speed radial tire, up to 130 mph (210 km/h)
i | Fuel injection
IC | Integrated Circuit
IHKA | Integrated automatic heating and air conditioning
IHR | Integrated heating control
IHKR | Integrated heating and air conditioning control
IND | Indonesia
KAT | Catalytic converter
K-Jetronic | Continuous fuel injection (CIS)
KSB | Cold start accelerator
L | Long wheel base
LA | Export version
LCD | Liquid crystal diode
LED | Light emitting diode
LFB | Load dependant delivery begin
LHM | Bulb check module
L-Jetronic | Air flow sensored fuel injection system
LKM | Bulb check module
LL | Idle speed
LHD | Left hand drive
LSM | Steering column memory
LWR | Headlight beam illumination range control
MBV | Flow control valve
MoDiC | Mobile Diagnostic Computer
MOZ | Motor octane number (MON)
MSR | Engine drag torque regulation
MVR | Solenoid valve
NHTSA | National Highway Traffic Safety Administration (USA)
NOx | Nitrogen oxide
NSL | Rear fog light
NSW | Front fog light
OHC | Overhead camshaft
PWG | Pedal Value transmitter
Q | Speed classification for winter tires up to 99 mph (160 km/h)
RAM | Random Access Memory
RDC | Tire pressure control
RHD | Right hand drive
RM | Relay module
ROM | Read only memory
ROZ | Research Octane number (RON)
RSV | Vacuum limiting valve
S | Speed category for tires up to 112 mph (180 km/h)
SA | Special equipment
SAE | Society of automotive engineers (USA)
SCA | Soft close automatic
SG | Control unit
SGS | Seat integrated belt system
SI | Service Indicator
SKHD | Sliding / Vent roof
SPM | Seat and mirror position memory
SR | Speed classification for radial tires up to 112 mph (180 km/h)
SRA | Headlight cleaning system
SSM | Servo lock control module
SSR | Sunblind
StvZO | Motor vehicle regulations, Germany
SZ | Special accessories
T | Speed classification for tires up to 118 mph (190km/h)
TAS | Temperature dependant starting volume control
TD | Low profile tires with emergency running properties in metric sizes
td | Turbocharged diesel engine
THA | Thailand
THM-R1 | EH control 4 speed automatic transmission built by GM France
TLA | Temperature dependant idle speed increase
TRX | Metric tire produced by Michelin
TSZ-i | Transistorized coil ignition - inductive
TSZ-i-s | Transistorized coil ignition - inductive with start de-coupling
TSZ-h | Transistorized coil ignition - Hall transmitter
URU | Uruguay
V | Speed classification for tires , above 130 mph (210 km/h)
VE | Mechanical distributor pattern injection pump (diesel)
VL | Full load (throttle)
VR | Very high speed radial tire, above 130 mph (210 km/h)
VaNoS | Variable camshaft timing
WK | Converter lock up clutch
X | Four wheel drive
Z or ZR | Tire speed category for more than 149 mph (240 km/h)
ZA | South Africa
ZBA | Supplementary owners handbook
ZF-4 HP-22 EH | Automatic transmission with electronic hydraulic control
ZF-4 HP-22 H | Automatic transmission with hydraulic control
ZF-4 HP-24 EH | Upgraded automatic transmission for M70 engine
ZKE | Central vehicle electronics
ZMS | Dual Mass flywheel
ZS | Central locking system inhibit device
ZV | Central locking system
ZW | Central warning lamp

E30 M3 Repair Manual V2.7. Copyright ©1999-2001 Koala Motorsport & Brett Anderson