Found this plug unplugged. After buying this vehicle








do you have the vario LED headlights or the fixed LEDs or halogens or what? is this a RHD or LHD car ? does your car have the front fog lamps mounted below the headlights (in the under-bumper valance, there woudl be two fog switches to the left of the headlight switch ?
if there's no obvious place nearby for this plug to be plugged into, its probably for a feature your car doesn't have.
Last edited by konigstiger; Feb 6, 2023 at 01:30 PM.
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your datacard says you hve the following options
SA code:
02R 17" LIGHT ALLOY WHEEL 5-SPOKE DESIGN ALL-ROUND
072 MODIFICATION YEAR 13/M/0 SCALE 2
108 CONTROL CODE MARKETING
10A OIL OFFSET AMOUNT +1000 ML OIL
110A IMITATION LEATHER
118A IMITATION LEATHER - GRAY
192 STEUERCODE NAG2-GETRIEBE MIT D1 STAND
1U2 SNOW GRID
211 EPS STEERING (ELECTRIC STEERING)
212B OP. INSTRUCT. AND MAINT. BOOKLET-ENGL. FOR USA/CAN
218 REAR-VIEW CAMERA
232 GARAGE DOOR OPENER WITH 284 - 390 MHZ FREQUENCY
249 INTERIOR AND EXTERIOR MIRROR,AUTOMATICALLY DIMMING
258 COLLIS.WARN. SYS. W/ ACTIVE BRAKE INTERV. FCW STOP
264 LICENSE PLATE ATTACHMENT AMERICA
265 LINES-NO.PLATE DISCONTINUED
275 MEMORY PACKAGE (DRIVER SEAT, STRG. COL., MIRROR)
279 ELECTRONIC GEAR RANGE SELECTION
284B AIRBAG LABEL - ENGLISH FOR USA
289 LEATHER STEERING WHEEL WITH TRIM INSERT
291 PELVIS AIRBAG (PELVISBAG)
294 KNEE AIRBAG
301 ASHTRAY PACKAGE
309 CUP HOLDER
30A COVER WITH ADDITIONAL DAMPER ATTACHMENT POINT
342B INSTRUMENT CLUSTER/HU LANGUAGE - AMERICAN
348 EMERGENCY CALL/SUPPORT SYSTEM
35A VGS D4-0, D3 PATTERN
413 PANORAMIC SLIDING SUNROOF/GLASS SUNROOF
427 AUTOMATIC TRANSMISSION 7-SPEED
428 STEER.WHEEL GEARSHIFT BUTTONS/SHIFT PADDLE PAINTED
461 INSTRUMENT WITH MILES IND. AND ENGLISH LEGEND
475 TIRE PRESSURE CONTROL
485 (COMFORT RUNNING GEAR)
494 U.S. VERSION
512 COMAND APS WITH DVD CHANGER
518 UNIVERSAL COMMUNICATIONS INTERFACE (UCI)
536 SIRIUS SATELLITE RADIO COMPLETE SYSTEM
540 ROLLER BLIND, ELECTRIC, FOR REAR WINDOW
543 SUN VISOR WITH ADDITIONAL FUNCTION
551 BASIC ANTITHEFT ALARM SYSTEM (ATA)
580 AIR CONDITIONER
58U ROOF INTERIOR TRIM GRAY FABRIC
632 RIGHT-HAND TRAFFIC STATIC LED HEADLAMP
634 DELETION - FIRST AID KIT
636 DELETION - WARNING TRIANGLE
668 PRODUCT PROT. F FREIGHT PACKAG. W TIE-DOWN HOOKS
690 EMERGENCY SPARE TIRE (MINI SPARE)
705L UNITED STATES (USA)
755U TENORITE GRAY METALLIC PAINT
763 RADIO REMOTE CONTROL WITH PANIC SWITCH (315 MHZ)
7XXL NORTH AND SOUTH AMERICA
804 YOM 13/1
810 PREMIUM SOUND SYSTEM
871 SENSORS FOR TRUNK LID OPENING/CLOSING
873 SEAT HEATER FOR LEFT AND RIGHT FRONT SEATS
875 HEATED SCREEN WASH SYSTEM
881 REMOTE TRUNK LOCKING
887 SEPARATE TRUNK LID LOCKING
889 KEYLESS - GO
917 PZEV EMISSION USA
919 AIRCON COOLING POWER PACKAGE
955 EQUIPMENT PACKAGE ELEGANCE
986 DEVIATING VIN WITH MODEL YEAR
989 IDENTIFICATION LABEL UNDER WINDSHIELD
A20 DIRECT START
A21 SHIFT BY WIRE
A63 FE TORQUE CONVERTER HOUSING-0
A64 FE CONVERTER 0 MM
A68 TRANSMISSION HOUSING WITH DEEP OIL LINE CONNECTION
A89 REDUCED-FRICTION
A99 U-VALVE BODY ASSEMBLY WITH VGS 4-0
B03 DIRECT START / ECO START/STOP FUNCTION
B09 REFRIGERANT COMPRESSOR WITH MAGNETIC COUPLING
B12 WHEEL REPLACEMENT TOOL
F212 MODEL SERIES 212
FW LIMOUSINE
G960 TRANSMISSION CODE VERSION 60
GA AUTOMATIC TRANSMISSION
H14 TRIM PIECES - WOOD BURRED WALNUT VENEER HIGH-GLOSS
HA REAR AXLE
J5A DSM: STAR1 FBS4 UPDATE
J81 JUNE RELEASE
K15 CONTROL CODE FOR SERVICE INTERVAL 15000 KM
L LEFT-HAND STEERING
M005 VEHICLES WITH 4-MATIC-/ALL WHEEL DRIVE
M276 V6-GASOLINE ENGINE M276
M35 DISPLACEMENT 3.5 LITER
N5A STEUERCODE W50 FUER PPS-INT. VERWENDUNG
P17 KEYLESS-GO PACKAGE
Q06 NAO BRAKE LININGS WITH NO LOSS OF BRAKE FORCE
R02 ALL SEASON TYRES
U10 FRONT PASSENGER SEAT WITH WEIGHT SENSING
U12 FLOOR MATS - VELOUR
U71 DVD PLAYER WITH REGIONAL CODE 1, USA
V62 SPEED- + LOADINDEX 99H XL
VL FRONT AXLE HALF, LEFT
VR FRONT AXLE HALF, RIGHT
looks like you have the static LED headlights (code 632) rather than the Vario (that move up and down and left to right). and, option 258 - COLLIS.WARN. SYS. W/ ACTIVE BRAKE INTERV. FCW STOP, but not Parktronic, or the speed sensitive cruise control that uses a radar. You have the Elegance interior trim package, and don't have the AMG 'sport' trim package or the sport suspension, so this sounds like a 'luxury' model (like my wagon) rather than a 'sport' model.
anyways, that plug could be for any of a few dozen things in the front of your car that it wasn't equipped with.




That 4 pin connector is quite generic and used in dozens of places on a Mercedes.




Last edited by Left Coast Geek; Mar 15, 2023 at 08:03 PM. Reason: i was wrong




its a radar sensor, which depending on its encoding can be used for the (ZB) front brake distance assist (emergency braking), or (SW) distronic electronic speed control...
need to know your VIN to know what version your vehicle requires and where it installs.
its a radar sensor, which depending on its encoding can be used for the (ZB) front brake distance assist (emergency braking), or (SW) distronic electronic speed control...
need to know your VIN to know what version your vehicle requires and where it installs.




ok, you have feature code 258, Collision warning system with brake application (FCW)
the diagram here, the radar sensor is # 520, PN A0009055103 and I think it goes behind the bumper, held in place by clip 530
I believe it attaches to #465, harness A2124404151 shown in that same diagram, ...
The note for this radar sensor says, PART MUST BE CHECKED FOR CURRENT FLASHWARE AFTER INSTALLATION... afaik, only dealers can update flashware (the firmware that runs inside that module).
Last edited by Left Coast Geek; Mar 12, 2023 at 02:32 PM.
the diagram here, the radar sensor is # 520, PN A0009055103 and I think it goes behind the bumper, held in place by clip 530
I believe it attaches to #465, harness A2124404151 shown in that same diagram, ...
The note for this radar sensor says, PART MUST BE CHECKED FOR CURRENT FLASHWARE AFTER INSTALLATION... afaik, only dealers can update flashware (the firmware that runs inside that module).
is that harness for parking sensor? Because it connect to eight sensors?









