Abbreviations for wiring diagrams - OV00.01-P-1001-27A

Model 163, 164, 166, 168, 169, 170, 171, 197, 199, 202, 203, 208, 209, 210, 211, 215, 218, 219, 220, 221, 230, 240, 245, 251, 414 

Abbreviation	Designation	Code	FG. FSG
4MATIC	Automatically controlled 4-wheel drive		28 42.35
AAG	Trailer connection unit
AB	Airbag	290b - Windowbag 291b - Airbag for driver and front passenger (if driver airbag standard - only for front passenger)	91.60
		292 - Left front and right sidebag
		293 - Left rear and right sidebag
ABC	Active Body Control	487a - Active Body Control (ABC)	32.50
ABL	Exterior lighting		82.10
ABR	Adaptive Brake		42.46
ABS	Antilock brake system	470a - Antilock brake system (ABS)	42.30
ABW	Proximity warning device		54.70
ADS	Adaptive damping system	216 - Adaptive damping system (ADS) with level control	32.32
		217a - Level control at rear axle with adaptive damping system (ADS)
AFB	Locator lighting		82.10
AFE	Automatic lane recognition		54.70
AG	Automatic transmission	420a - Automatic 4-speed transmission	27.00
		423a - Automatic 5-speed transmission (NAT)
AGW	Audio gateway		82.60
AGW	Audio gateway		82.
AHV	Trailer hitch	550 - Trailer hitch	31
AKR	Anti-knock control [AKC]
ACSR [AKSE]	Automatic child seat recognition		91.60
ALDA	Barometric pressure/charge air pressure compensation [BCAPC]
APS	Auto pilot system	351 - Auto pilot system (APS)	82.61
		353 - Audio 30 APS
		815 - Dynamic navigation
ARF	Exhaust gas recirculation		14.20
ARMIN	Airbag with integrated emergency call system		91.60
AS	Towing sensor	882d - Towing sensor	82.55
ASA	Automatic dimming mirror	249a - Automatic dimming inside rearview mirror	68.49 88.79
ASD	Automatic locking differential	211a - Rear axle with automatic locking differential (ASD)	35.41
ASF	Drive authorization system shutoff valve (DSV)
SEQ	Sequentronic automated manual transmission	424 - Automated manual transmission Sequentronic (SEQ [ASG])	26.19
ASR	Acceleration Slip Regulation	471a - Acceleration slip regulation (ASR)	42.40
ATS	Antenna systems	270a - Antenna for telephone network D	82.62
		531 - Automatic antenna	82.70
AWR	Distance warning radar [DWR]		54.70
BAS	Brake assist		42 42.31
CAN	Controller Area Network (databus)
CAN-D	Controller Area Network bus class D (diagnosis)		54.00
CAS	City Assist System		54.65
CDI	Common rail diesel injection (CDI)		07.16
CDC	CD changer	818a - 10-disk CD changer in trunk	82.64
		819 - 6-disk CD changer
		819a - CD changer
CNS	Communication and navigation system (only	350a - Communication and navigation system	82.85
COMAND	Cockpit management and data system	352a - COMAND Operating and display unit 82.85
		860 - TV tuner
		861 - TV rear screen
CV	Convertible soft top [CST]		77
CVT	Continuously variable transmission (CVT)		27
D2B	Digital data bus		82.00
OCP	Overhead control panel control unit		54.21
DH	Diagnosis manual [DMAN]
DTR	Distronic (adaptive cruise control)	219a - Distronic (DTR)	30.30
E-call	Emergency call system	348a - EMERGENCY CALL system	82.95
ECE	Economic Commission for Europe
ECI	Electronic controlled ignition		07.61
EDC	Electronic diesel control		07.12/07.13
EDR	Electronic diesel regulation		07
EDS	Electronic diesel system		07
ATA	Antitheft alarm system	551a - Antitheft alarm system (ATA)	82.50
		552a - Antitheft alarm system (ATA) for Switzerland	80.50
Electronic parking brake	Electric parking brake		42.20
EFH	Power windows		72.29
EA	Electronic accelerator		30.20
ETC	Electronic Transmission Control (ETC)		27.19
EHD	Electronic high-pressure diesel injection system		30.20
ELR	Electronic idle speed control [ISC]
ESL	Electric steering lock		46.
ENR	Electronic level adjustment [ELA]	480 - Level adjustment at rear axle
EOBD	European on-board diagnosis		07.00
EPC	Electronic power control		30.20
EPS
IFI	Diesel injection system (electronic in-line fuel injection) [IFI]		07.12
ESL	Electric mirror, steering column adjustment, heated mirror [MSC]		46.15 88.79
ESP	Electronic Stability Program	472a - Electronic stability program (ESP)	42.45
ESV	Electric seat adjustment	222a - Right driver seat electrically adjustable	91.29
		223 - Model 140: Electrically adjustable rear seat backrest and head restraints adjustment
		242a - Memory for right electrically adjustable driver seat
		242b - Electrically adjustable passenger seat with memory.
ETS	Electronic traction system	212a - Electronic traction system (ETS)	42.35
DFI	Diesel injection system (electronic distributor-type injection system) [DFI]		07.13
EVL	Electrically adjustable steering column [ESC]	441a - Electrically adjustable steering column	46.15
ESM	Electronic selector module		27
EZS	Electronic Ignition Switch (EIS) control unit		80.57
FAN	Fanfare horn system		54.35
DAS	Drive authorization system		82.57 80.57
DS-LF	Left front dynamic seat		91
DS-RF	Right front dynamic seat		91
RFL	Radio frequency locking [RFL]		80.50
FFZ/IFZ	Radio frequency locking/infrared remote central locking [RFL/IRCL]		80.50
FG	Function group
HFS	Handsfree system		82.70
FUG	Function subgroup
PAS	Panic alarm system
GES	Vehicle speed signal		00.19
BM	Base module		54.21
GPS	Global positioning system
GUB	Seat belt extender		91.40
GUS	Emergency tensioning retractor		91.40
			91.60
HAL	Rear axle steering
HEAT	Automatic heater		83.25
HDF	Trunk lid remote opening	886 - Remote trunk lid release (RTR)	80.20
HDFS	Remote trunk lid locking [RTL]		88.50
TLC	Trunk lid control		80.
HFM-SFI	Gasoline injection and ignition system (HFM sequential multiport fuel injection/ignition system) [HFM-SFI]		07.51
HFS	Heated windshield
HHS	Rear window defroster		67.29
HHT	Hand-held tester
HORN	Horn signal system
HPF	Hydropneumatic suspension
HZS	Trunk lid auxiliary lock [TAL]	884 - Trunk lid auxiliary lock (TAL (HZS))	88.50
ICS	Information and communication system (only )	350b - Information Communications System (ICS)	82.85
IFZ	Infrared remote control for central locking [IRCL]	880a - Locking system with infrared remote control	80.30
IR	Infrared		80.30
IRS	Interior motion sensor	882b - Infrared interior monitoring (only with ATA)	80.50
ISM	Intelligent servo module		27.19
C-AAC	Convenience automatic air conditioning		83.40
C-AAC	Convenience automatic air conditioning
KAF	Retractable rear head restraints	430a - Left and right rear head restraints	91.16
TWC	Catalytic converter	620a - Vehicle with catalytic converter technology	07 49.10
KBE-H	Rear A/C operating unit		83.40
KFB	Convenience feature		82.40
			80.45
KG	Keyless Go	889 - Keyless Go	80.61
IC	Instrument cluster		54.30
AAC	Automatic air conditioning	580 - Air conditioning system or, in the USA, Tempmatic	83.40
		581a - Automatic air conditioning
		581b - Comfort automatic air conditioning
KLS	Climate-controlled seat		91.30
KM	Compass module		54.21
KSG	Easy-shift manual transmission (Sequentronic)	424 - Automated manual transmission Sequentronic (SEQ [ASG])	26
SW	Crank angle [CKA]
LDH	Lamella roof	417a - Lamella roof	77.20
LH	LH sequential fuel injection system		07.41
LHD	Left-hand drive vehicle
LLR	Idle speed control		30.22
HSW	Heated steering wheel		82.90
LS	Power steering gear
LSA	Speaker system [LS]	810 - Sound system	82.62
		812 - Rear speakers	82.60
		814a - Active bass speaker system
LVDS	Low voltage differential signal		82
HRA	Headlamp range adjustment	612b - Xenon headlamp unit	82.10
MAS	Engine systems control unit (ESCM)
ME-SFI	ME (motor electronics) gasoline injection and ignition system		07.61
MG	Manual transmission	428 - Manual 5-speed transmission	26.00
MKL	Multicontour backrest		91
MKS	Multicontour seat	433 - Left dynamic seat incl. multicontour seat	91.25
		434 - Right dynamic seat incl. multicontour seat
MOST	Media Oriented System Transport		82.
MRA	Residual engine heat utilization system [REST]
SCM [MRM]	Steering column module		46.10
MRS	Multifunction restraint system	290 - Window airbag	91.60
		291b - Airbag for driver and front passenger (if driver airbag standard - only for front passenger)
		292 - Left front and right sidebag
		293 - Left rear and right sidebag
EBR	Engine braking regulation
MSS	Special vehicle multifunction control module
NV	Low compression [LOC]
NSH	Night vision assistance		54.30
OBD	On-board diagnosis		54.21
UCP	Upper control panel		54.21
OMS	Operating monitoring system
OSL	Orthopedic seat backrest	404 - Orthopedic driver seat backrest (multicontour seat backrest on model 140) left
		405 - Orthopedic driver seat backrest (Multi-contour seat backrest with model 140) right
OT	Top dead center
PE	Electrics diagram
DSP	Dynamic seat pump [DSP]		91
PLA	Pneumatic idle speed increase [PISI]
SPS	Speed-sensitive power steering		46.50
PMS	Fuel injection and ignition system (pressurized engine control [PES])		07.52
PSE	Pneumatic system equipment
PSV	Partial intake manifold preheater [PMP]		09.20
PTS	Parktronic system	220 - Parktronic system	54.65
		220a - Parktronic system (PTS)
R	Reverse gear		26./27.
RA	Repair instructions
RBA	Frame-floor system [FFS]
TPC	Tire pressure monitor [TPM]		40.15
RDS	Radio data system
RDU	Tire pressure monitor [TPM]		40.15
RDW	Tire pressure loss warning
RevETR-LF	Left front reversible emergency tensioning retractor		91.40
RevETR-RF	Right front reversible emergency tensioning retractor		91.40
BA	Reversing aid	220 - Parktronic system	54.65
		220a - Parktronic system (PTS)
RL	Right-hand drive vehicle
RRE	Trip computer	245 - Trip computer	54.50
RUF	Backfit solution	821 - Catalytic converter retrofit version (RUF)
RS	Roadster soft top		77.39
RWT	Rear-end door control module
SA	Special equipment
SAM	Signal acquisition and actuation module
SBC	Sensotronic Brake Control		42.45
SBL	Seat ventilation	401a - Seat ventilation front seats	91.30
		402a - Seat ventilation rear seats
VCS	Voice control system	813 - Voice control system (VCS)	82.70
SD	System diagnosis		00.30
SDAR	Satellite Digital Audio Radio (Satellite radio)		82.60
SHD	Sliding/tilting roof		77.20
CA [SHI]	Closing assist
HRS	Heated rear seats	872 - Electric seat heater for rear seat, left and right	91.30
HS	Seat heater	870 - Electric seat heater for driver seat, left	91.30
		871 - Electric seat heater for driver seat, right
		872 - Electric seat heater for rear seat, left and right
		873 - Seat heater for front seat, left and right
CCM	Multifunction control module		54.21
SOSI	Special signal system
SOUND	SOUND system (for example amplifier)		82.62
SPH	Mirror heater
SPK	Folding outside mirrors
SRA	Headlamp cleaning system	600a - Headlamp cleaning system	82.15
SRS	Supplemental restraint system	290 - Window airbag	91.60
		291b - Airbag for driver and front passenger (if driver airbag standard - only for front passenger)
		292 - Left front and right sidebag
		293 - Left rear and right sidebag
SRU	Manifold vacuum assist [MVA]
STH	Stationary heater	228 - Auxiliary heater	83.70
		228 - Stationary heater
		230 - Remote control for auxiliary heater
SVS	Power locking	883a - Power closing for doors and trunk lid	80.40
TAC	Tempmatic (air conditioning) [TAC]	580 - Air conditioning system or, in the USA, Tempmatic	83.30
		582 - Rear air conditioning
TD	Time Division, RPM signal, diesel
CTEL	Cellular telephone	273 - D-net cell phone preinstallation	82.70
		274 - MB D-network telephone
		316 - MB D-net telephone (D2B)
		317 - D-net cell phone (D2B)
		853 - MB standard telephone
		854 - MB cell phone
TELE AID	Telematic Alarm Identification on Demand (emergency call system)	855 - TELE AID	82.95
TN	RPM signal (DI/KSS)
CC	Cruise control	440a - Cruise control	07
			30.30
			80.57
TSG	Door control module
TURBO	Turbocharger
TV	TV tuner		82
LCP	Lower control panel [LCP]
UHI	Universal Portable CTEL Interface		82.70
URB	Roll bar crash release		91.50, 51
URB	Roll bar		91.50 91.53 91.59
UT	Bottom dead center [BDC]
RVC	Roll bar Vario roof control [RVC]		77.39 91.59
VR	Vario roof		77
VHG	Retractable trunk lid grip [RTG]		88.52
VICS	Vehicle Information and Communication System		82.85
WFS	Immobilizer
WIS	Workshop Information System
WSS	Weight sensing system		91.60
ZAE	Central triggering unit (airbag) [CTU]		91.60
CSO	Cylinder shutoff		07.61
COU [ZBE]	Central operating unit		54., 82.60
CGW	Central gateway		54.21
HB	Heater booster		83.70
CL	Central locking	466 - Central locking	80.20