Remote Sync, Key not working, Sync Procedure - Page 2 - Mercedes-Benz Forum
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#11 (permalink) Old 01-20-2010, 07:12 PM
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Yes. I bought two nice remotes on e-bay in like-new condition, opened them up (by pre-heating them in lab oven to 180 deg. F for 10 min.) with razor blade. Removed key blade and small black transponder chip (not part of circuit board but loose by its self next to key spring mechanism) from my original and moved them both to donor remote then glued back both halfs with black loctite super glue. Pre-programmed chip is for starting your vehicle purpose and circuit board is there for opening your doors function. After inserting key into ignition, your vehicle's ignition collar receiver will recognize the original transponder chip, LED on dash will blink and All Activity Module will let you resynchronize the remote.
My manual is wrong. I found it now and here are my notes:
1. Close all doors.
2. Turn key to pos. 2 then to pos. 0 and remove.
3. Within 10 sec. press and hold lock button now press unlock 5 times.
4. Release the lock button.
5. PRESS TAIL GATE BUTTON TO END AND FINALIZE RESYNCHRONIZATION!
This last step is the most important that some guys missed in their procedure and it's not mentioned in owner's manual!
2001 may be diferent then my 1999 but I would try it out.
Good luck, Bernard

1999 ML320 223K miles
2003 Lexus GX470 280K miles
1980 280SE W126 EURO 142mph top speed (sold)

Last edited by mbenz80; 01-20-2010 at 07:14 PM.
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#12 (permalink) Old 01-20-2010, 07:38 PM
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where is tail gate button? you mean the trunk unlock button on the remote or in the car?
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#13 (permalink) Old 01-21-2010, 12:51 AM
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On the remote key.
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#14 (permalink) Old 01-21-2010, 06:11 AM
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Yes, tail gate button of the remote control.

1999 ML320 223K miles
2003 Lexus GX470 280K miles
1980 280SE W126 EURO 142mph top speed (sold)
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#15 (permalink) Old 01-21-2010, 10:33 AM
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Sync'ing new keys

Unfortunately, the key has to be an original or MB replacement to be sync'd. An Ebay or used key will need to be recognized by the AAM via the OBII plug. Once the key is recognized, it can be sync'd when needed.
If there is a way to connect the remote and car without placing it in the key programmer, I really want to know.
I have several used remotes that MB refuses to program. They say it's against their policy to do so.
The tech said all the new replacement keys are designed to not work with the cheap Chinese programmer, since this has become a worldwide issue with their keys. What pain in the ass.
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#16 (permalink) Old 01-21-2010, 11:00 AM
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dude - you like live in like hawaii - what do you want with keys?
just leave the car unlocked & key in the ignition
who is gonna steal yer benz.
and if they do ... where are they going to go (hehe)

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#17 (permalink) Old 01-21-2010, 11:02 AM
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The used key will get recognized by AAM with your original key in the ignition and original transponder chip next to receiver that is build into ignition lock ring. I have tried holding original transponder in my hand while inserting used FOB with my original key and it was not recognized untill I installed the chip into key FOB enclosure to be very near to ignition lock collar and then it worked fine. One of my original remotes had broken off one integrated circuit from the board and I did not have to resolder it back on, because the board from other used remote was synchronized just fine with AAM in my ML.
Bernard

1999 ML320 223K miles
2003 Lexus GX470 280K miles
1980 280SE W126 EURO 142mph top speed (sold)
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#18 (permalink) Old 01-22-2010, 03:19 PM
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This may be off the thread, but my car stopped automatic lock when drive above 15mph, then about two weeks later my key stopped working. Is this two different prombem, like AAM and key? or AAM only?

Also, dealer near me told me the key is $375 including programming. Do I really have to pop out $400 for key replacement?
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#19 (permalink) Old 01-22-2010, 03:56 PM
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Is there anything else we can check regarding the keyless entry/alarm in regards to it not working (Key fob wont sync, alarm wont arm, etc)
I bought the vehicle used with dead batteries in the key fob. I replaced them and tried to re-sync and it didn't work. Got another remote out of a wrecked ML and tried to sync it and still no luck.
My light blinks on the dash when my key is in the ignition.
Where do I go from here, besides the dealer. Any help would be awesome.
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#20 (permalink) Old 01-23-2010, 01:14 PM
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Quote:
Originally Posted by todesto View Post
This may be off the thread, but my car stopped automatic lock when drive above 15mph, then about two weeks later my key stopped working. Is this two different prombem, like AAM and key? or AAM only?

Also, dealer near me told me the key is $375 including programming. Do I really have to pop out $400 for key replacement?
Where are you located. Keys here in Wisconsin are less than $200 including
programming. I think your dealer is being a bit ambitious on the price.
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