Acronyms Used

Abbreviation Designation

4MATIC Automatically controlled 4-wheel drive
A/C (Automatic) Air Conditioning (Automatic)
AAC (KLA) Automatic Air Conditioning
AB AirBag
ABC Active Body Control
ABL Exterior lights
ABS Anti-lock Braking System
ACSR Automatic Child Seat Recognition
ADM (ASA) Automatic Dimming inside rearview Mirror
ADS Adaptive Damping System
AFE Automatic lane recognition
AIR Secondary air injection
AJC (ARA) Anti-jerk Control
AP Accelerator Pedal
APS Auto Pilot System
ARMIN Airbag with indegrated E-Call
AS Antenna Systems
ASD Automatic locking differential
ASR Acceleration Slip Regulation
AT (AG) AutomaticTransmission
ATA (EDW) Anti-Theft Alarm
ATS AnTenna Systems
BA Backup Assist
BA (RFH) Backup Assist
BARO BAROmetric pressure
BAS Brake ASsist
BCAPC (ALDA) Barometric pressure / Charge Air Pressure Compensation
BDC Bottom Dead Center
BDC (UT) Bottom Dead Center
BF Front passenger
BK BLack
BLS Brake Lamp Switch
BLS (NC) Brake Lamp Signal (normally closed switch)
BLS (NO) Brake Lamp Signal (normally open switch)
BM Base Module
BM (GM) Base Module
BN BrowN
BPC Barometric Pressure Compensation
BPC (ADA) Full throttle stop Barometric Pressure Compensation
BU BlUe
CA Closing Assist
CA (SHI) Closing Assist
CAN Controller Area Network (data bus)
CAN H Engine CAN-Bus High signal
CAN IH Interior CAN-Bus High signal
CAN IL Interior CAN-Bus Low signal
CAN L Engine CAN-Bus Low signal
CC Cruise Control
CC (TPM) Cruise Control
CCM Combination Control Module
CCM (SKF) Multi-function Control Module
CCS Climate Controlled Seat
CDC CD Changer
CDC (CDW) CD Changer
CDI Common rail Diesel Injection (CDI)
CF Convenience Feature
CF (KFB) Convenience Feature
CKA CranKAngle
CKA (KW) CranKAngle
CKP CranKshaft Position
CL Central Locking
CL (ZV) Central Locking
CMP CaMshaft Position
CNS Communication and Navigation System (only (j))
CODE Coding connection
COM COMmon
COMAND COckpit MANagement and Data System
CST (CV) Cabriolet Soft Top
CTEL (TEL) Cellular TELephone
CTP Closed Throttle Position (idle)
CTU Central Triggering Unit
D2B D2 Bus
DAS (FBS) Drive Authorization System
DCM Door Control Module
DFVL Left front VSS output
DFVR Right front VSS output
DI Distributor Ignition system
DI (EZL) Distributor Ignition system
DIAG DiAGnostic connection
DIAGN DiAGNostic connection
DMNL (DH) Diagnosis MaNuaL
DSV Drive authorization System shut-off Valve
DSV (ASF) Drive authorization System shutoff Valve
DTC Diagnostic Trouble code
DTR DisTRonic
DWR Distance Warning Radar
E-CALL Emergency CALL
EA (EFP) Electronic Accelerator
EATC (EAG) Electronic Automatic Transmission Control
EBR Engine Braking Regulation
EBR (MSR) Engine Braking Regulation
ECI Engine Coolant Level
ECT Engine Coolant Temperature
EDC Electronic Diesel Control
EDR Electronic Diesel Regulation
EDS Electronisches Diesel System
EGR Exhaust Gas Recirculation
EGR (ARF) Exhaust Gas Recirculation
EHD Electronic High pressure Diesel injection system
EIS Electronic Ignition Switch
ELA (ENR) Electronic Level Adjustment
EMSC Electric Mirror, Steering Column adjustment, heated mirrors
EPC Electronic Power Control
ESA (ESV) Electric Seat Adjustment
ESC (ELV) Electric Steering Column adjustment
ESCM Engine Systems Control Module
ESCM (MAS) Engine Systems Control Module
ESP Electronic Stability Program
ETC Electronic Transmission Control
ETR Emergency Tensioning Retractor
ETR (GUS) Emergency Tensioning Retractor
ETS Electronic Traction System
EVAP EVAPorative emission control system
FA Driver
FAN FANfare horns
FFS Frame Floor System
FG Function Group
FP Fuel Pump
FSA+ Hands-free speaker plus
FSA- Hands-free speaker minus
FUG FUnction subGroup
GD GolD
GES Vehicle speed signal (VSS)
GIM Governor Impulse Method
GN GreeN
GPS Global positioning system
GS Seat belt ETR
GY GreY
HCS Headlamp Cleaning System
HCS (SRA) Headlamp Cleaning System
HEAT (HAU) Automatic HEATer
HFM-SFI (HFM) Fuel injection and ignition system (hot film engine management)
HFS Hands-Free System
HHT Hand-Held Tester
HORN HORN signal system
HRA Headlamp range adjustment
HRS (SIF) Heated Rear Seats
HS Heated Seats
HS (SIH) Heated Seats
IAT Intake Air Temperature
IC Instrument Cluster
IC (KI) Instrument Cluster
IDC In-Dash Controller
IFI Electronic In-line Fuel Injection (Diesel)
IFI (ERE) Diesel Injection system (electronic inline Fuel Injection)
IMM (WFS) IMMobilizer
IMS Interior Motion Sensor
IND INDicator
INTERV Intermittent wipe
IPS Actual value potentiometer signal
IR InfRared
ISC Idle Speed Control
ISC (ELR) Electronic Idle Speed Control
ISC (LLR) Idle Speed Control
IV InputValve
KS Knock Sensor
KSK Control contact
KSS Knock Sensor System
KSS (AKR) Knock Sensor System
KU + Clutch +
KU - Clutch -
LA LAmp output (preglow relay)
LCP Lower Control Panel
LED G Green feedback LED
LED R Red feedback LED
LF LeftFront
LH-SFI (LH) LH Sequential multi port Fuel Injection
LHS (LL) Left-Hand Steering
LOC (NV) LOw Compression
LS (LSA) Loudspeaker System
LSK Idle speed safety contact
M+ Motor+

M- Motor
MAF Mass Air Flow
MAP Manifold Absolute Pressure
MB-ISO Diagnostic connector
MCS (MKS) Multi-Contour Seat
ME-SFI (ME) Fuel injection and ignition system (motor electronics)
MFC Special vehicles Multi-Function Control module
MIL Malfunction Indicator Lamp
MOT MOTor
MSC Mirror, Steering Column adjustment, heated mirrors
MSC (ESL) Mirror, Steering Column adjustment, heated mirrors
MSK Open throttle safety contact
MT Manual Transmission
MT (MG) Manual Transmission
MUTE Radio MUTE signal
MVA Manifold Vacuum Assist
MVA (SRU) Manifold Vacuum Assist
N Neutral position
O2S Oxygen (O2) Sensor
OBD On-Board Diagnostics
OC Oxidation Catalytic converter
OG OranGe
OMS Operating-Monitoring-System
OSB Orthopedic Seat Backrest
OSB (OSL) Orthopedic Seat Backrest
OV OutputValve
P Park position
P + Potentiometer + reference
P - Potentiometer - reference
PA Parking Assist
PARK SW PARKing brake SWitch
PE Electrics diagram
PEC (PMS) Fuel injection and ignition system (pressurized engine control)
PISI (PLA) Pneumatic Idle Speed Increase
PK PinK
PL (SVS) Power Locking
PMP (PSV) Partial intake Manifold Preheater
PNP Park/Neutral Position
POS POSition
PROX (ABW) PROximity warning
PS Power Steering
PS (LS) Power Steering
PSE Pneumatic System Equipment
PTS ParkTronic System
PW Power Windows
PWM Pulse Width Modulation
RAS (HAS) Rear Axle Steering
RB Roll Bar
RB (URB) Rollover Bar
RCL Remote Central Locking
RCL (IFZ) Remote Central Locking
RD ReD
RD RaDio
RDS Radio Data System
REST Residual engine heat utilization
RF Right Front
RFL Radio Frequency Locking
RH Retractable Hardtop
RHR Retractable rear Head Restraints
RHR (KAF) Retractable rear Head Restraints
RHS RightHand Steering
RHS (RL) RightHand Steering
RPM Revolutions Per Minute (engine speed)
RR Right Rear
RST (RV) Roadster Soft Top

RTG Retractable Trunk lid Grip
RTG (VHG) Retractable Trunk lid Grip
RTN ReTurn Line
RTR Remote Trunk Release
RTR (HDF) Remote Trunk Release
RUF Catalytic converter retrofit version
RWD Rear Window Defroster
RX Receive
S Shield (unspecified)
S - B Set - decelerate
S + B Set - accelerate
SA Special equipment
SAM Signal pickup- and Activation Module
SBE Seat Belt Extender
SBE (GUB) Seat Belt Extender
SLO Starter Lock-Out
SMS Service Microfiche System
SMS (RA) Service Microfiche System (repair instructions)
SN1 Unlocking signal
SN2 Locking signal
SOV SwitchOver Valve
SPS Speed-sensitive Power Steering
SPS (PML) Speed-sensitive Power Steering
SR SilveR
SR Sliding/pop-up sunRoof
SR Sliding/pop-up Roof
SRS Supplemental Restraint System
SS Speed Sensor
STH STationary Heater
SW SWitch
T Temperature input (preglow relay)
TAC (TAU) Tempmatic Air conditioning
TAL (HZS) Trunk lid Auxiliary Lock
TB Throttle Body
TC Turbocharger
TCM Transmission Control Module
TD Speed signal (Time Division) DI (EZL)
TDC Top Dead Center
TDC (OT) Top Dead Center
TELE TELEscoping
TELE AID TELEMATIC ALARM IDENTIFICATION ON DEMAND
TK Door contact
TN Speed signal (DI/KSS )
TN Engine RPM signal (unmodified)
TNA Engine RPM signal (re-formed)
TP (VK) Traffic Program
TPC (RDK) Tire Pressure Control
TPM (RDU) Tire Pressure Monitoring
TQ TurQuoise
TRAP TRApoxidizer
TRIP (RRE) TRIP computer
TRU Transmit-Receive Unit
TS Anti-Towing Sensor
TURBO Exhaust gas TuRBOcharger
TW Tank Vent Valve
TWC Three Way Catalytic converter
TWC (KAT) Three Way Catalytic converter
TX Transmit
ULLKS Idle speed contact(+ side)
USK Safety contact +
VAF Volume Air Flow
VCS (SBS) Voice Control System
VL Leftfront
VR Rightfront
VSS Vehicle Speed Signal
VsS (GES) Vehicle Speed Signal
VT VioleT
WA Memory recall (resume)
WH WHite
WIS Workshop Information System
WOT Wide Open Throttle (full load)
YE YEllow
-4-> Indicates number of wires connected to the appropriate terminal block or connector sleeve
* Asterisk marks connector sleeve with not all wires shown