Rudeney

I wonder if someone tried to retrofit KeylessGo on this car and failed? Post your VIN and I can lookup the data card to see if it was a factory-fitted option.

Senior Moodi

So if i changed the door handles , the problem of keeping the key too close to open the car will be solved ? And keyless entry will work ? What is mercedes epcnet ? I am new to that stuff

Senior Moodi

So u can determine that even tho its a middle east model (uae to be exact) ? And how u will do it ?

cetialpha5

There's a good chance that replacing the door handles will make them work again, water seems to get into those buttons and they end up corroding. As to keeping the key too close, it's supposed to be within 3 feet in order for the car to detect it. If it's much less than that, trying changing the batteries in the key again, there have been numerous threads about people getting bad batteries even when new. Buy a good set from a reputable company.

Epcnet lets you find out what parts are needed for the car, it will also give you the datacard on the car which will tell you what options the car has. All you have to do is post your VIN which is a long series of letters/numbers which is located underneath the windshield and in other locations. In the US, EPCnet is free, other countries you might have to pay for it. The VIN identifies the car no matter which market it is made for worldwide.

Senior Moodi

Nah its less than 3 feet i am sure. I changed like 2 times now. I think its sth with the reciever on the handle.
Can u do it for me and then send me all that info since its free there ?

cetialpha5

Yes, just post the VIN number.

The receiver isn't in the handle, the handle just has a couple of buttons in it. It could be the antenna. When they don't work at all, it's probably the handle, if you have to be really close, then maybe it's the receiver/antenna. As mentioned earlier, only hooking it up to Star diagnostic at the dealership will tell you for sure unless you can find some other member in the area that has a star diagnostic system.

Senior Moodi

WDBTJ65J24F073872

Oki i will check it 👌 . How much the antenna cost ?

cetialpha5

Here's the feature codes. I guess you do have keyless go.

212B OP. INSTRUCT. AND MAINT. BOOKLET-ENGL. FOR USA/CAN
213 SPEED-SENSITIVE POWER STEERING/VARIO STEERING
221B SIGN COOLANT/REFUELING - ENGLISH
232 GARAGE DOOR OPENER WITH 284 - 390 MHZ FREQUENCY
236B WITHOUT CUSTOMER SERVICE - STATION INDEX
242 FRONT SEAT RH ELECTRIC ADJUSTABLE WITH MEMORY
249 INSIDE AND OUTSIDE MIRROR AUTOMATIC DIMMING
264 LICENSE PLATE ATTACHMENT AMERICA
265 LINES-NO.PLATE DISCONTINUED
275 MEMORY PACKAGE (DRIVER SEAT, STRG. COL., MIRROR)
289 WOOD/LEATHER STEERING-WHEEL
293 SIDEBAG IN REAR LEFT AND RIGHT
301 ASHTRAY PACKAGE
309 CUP HOLDER
349 PREP. FOR EMERGENCY CALL SYSTEM
352 COMAND
414 ELECTRIC TILT/SLIDE SUNROOF IN GLASS VERSION
423 5-SPEED AUTOMATIC TRANSMISSION
461 INSTRUMENT WITH MILES IND. AND ENGLISH LEGEND
494 U.S. VERSION
531 SIRIUS SATELLITE RADIO FOR USA PREINSTALLATION
540 ROLLER BLIND, ELECTRIC, FOR REAR WINDOW
551 ANTI-THEFT/ANTI-BREAK-IN WARNING SYSTEM
573 CHILD SEAT MOUNTING, ISOFIX IN REAR
581 AUTOMATIC CLIMATE CONTROL
589 BOOSTER-BLOWER FOR AUTOMATIC CLIMATE CONTROL
673 HIGH-CAPACITY BATTERY
690 EMERGENCY SPARE TIRE (MINI SPARE)
731 WOOD TRIM BURRED WALNUT ROOT
763 RADIO REMOTE CONTROL W/ PANIC SWITCH (315 MHZ)
7XXL NORTH AND SOUTH AMERICA
804 YEAR OF MODIFICATION
810 SOUND SYSTEM
819 CD CHANGER
820 VEHICLES FOR TOURIST
830A AMARETTA/LEATHER/NAPPA/SEMI-ANILINE
838A AMARETTA/LEATHER/NAPPA/SEMI-ANILINE - GRAY
875 HEATED SCREEN WASH SYSTEM
889 KEYLESS - GO
943U ICE-BLUE METALLIC FINISH
955 EQUIPMENT PACKAGE ELEGANCE
986 IDENTIFICATION NUMBER (VIN-NO.)
989 IDENTIFICATION LABEL UNDER WINDSHIELD
M112 V6-GASOLINE ENGINE M112
M32 CAPACITY 3,2 LITER
NC1 CONTROL CODE BREMEN PLANT
NE7 CONTROL CODE BREMEN PLANT

Senior Moodi

Thanks
Yup now i am sure that i do.I guess the driver side handle was changed with one that doesnt have the keyless buttons.So my problems in summary are : 1)gearknob button 2)the driver side door handle 3) the passenger side door handle have keyless go buttons but doesnt work despite i keep the key so close and press the buttons and nothing happens. 4) Antenna which is why it doesnt open from 3 feet .

cetialpha5

The regular door handle is much cheaper than the keyless go one so someone screwed up in the past. As for #4, not sure what you're talking about, keyless go doesn't seem to be working because the start button doesn't work and the handles don't work to open and lock the car. If the buttons on the fob don't work unless you're really close, that could either be the fob or the antenna. That's why we keep going back to Star Diagnostic, they can tell for sure, otherwise you're just throwing parts at the problem and hope something works. First step would probably be to replace the driver's door handle, no matter what's wrong, that shouldn't be a waste of money.

DanielFD

cetialpha5 is right. i did some research on the subject from curiosity. It seems there is a Keyless Go control Module in the trunk, but i couldnt find out of the antenna in the rear windscreen is related (your key only works on the IR sensor from the door, so the antenna is shot for sure). On STAR you can individually test the Keyless Go components from the door sensors to the start button. If the dealer wants to steal just find an independent garage that has STAR (most mercedes benz specialist garages will have it). Or come by to lebanon with your car and i'll get you sorted

Senior Moodi

Sorry for the late reply.I will go to a STAR garage and see. But i have 3 questions 1) does the start button not working have anything to do with the key not working except from really close/keyless feature not working or it can just be fixed alone by repairing the wires under it or sth ?
2)When i press the button on the passenger door handle the car says 'key not detected' what does that mean ?
3)Does fixing the keyless go automically fixes the key not opening the car from far ?
Thanks in advance
Haha thanks u r lebanese ?

DanielFD

1) Not sure about that
2) Thats interesting.. seems like the car isn't reading the key.. looks like its most probably the sensors that read the key. (Might be the Radio antenna)
3) Radio Antenna is going to fix reading the key from afar for sure, but still again i dont know if its going to solve the keyless go problem, On STAR you can test these sensors and even reset the key.

Thats right! I'm Lebanese and the family is Lebanese. But I'm born in the US, but never lived there, so technically I'm American too.

abqhudson

If it isn't the battery, try wiggling the gear shift lever forward or left to reposition it to see if it works. I sometimes have to reposition mine to get it to fire. Remember it is not instantaneous - have to hold it depressed for a second or two.

Good luck.

Rudeney

The first thing I recommend is get a second key! Having only one key could leave you stranded if you lose or damage it. If KeyLess Go then works with the new key, you'll know the problem is your old key. If not, then you're going to need the help of the dealer (or a qualified tech with SDS) to have it properly diagnosed.