pmercury

iTrader: (2)

there is no reason that it doesn't work if you already have a card keyless go that it would not work
good luck !

AlexanderDor

All keyless cards are unfortunately lost, and i hope that your advice will help to restore the keyless go system.
The another way - use second hand EIS lock with cards, but ECU and shift selector wil not work with it whitout additional cheating.

pmercury

iTrader: (2)

You don't need the old cards
they go with the old unit

you can trash cards with the old unit if you have those

Kelvin Bellrose

I called the dealership today and asked about the key and they said they can't guarantee that they would send the correct key for my vin, or the one I was asking for. Either way it was $460 canadian bucks and no returns. I then thought maybe I should just buy the card because that is what I am missing. They sell those for $680 bucks.

I wonder if some pirate can code my vin to the new ebay keys I bought?

pmercury

iTrader: (2)

Mercedes always say this, there is no risk, only risk is not to get the right frequency
this key should be yours A230 766 03 06 9999
this key should work as I ordered this one and it was US frequency and I had it converted by changing the crystal after
even if your key is not the right frequency, you can change the crystal yourself from a used right frequency key by swap
that doesn't affect the vin



the rest has to be done with the Xentry Das software and Sdconnect diagnostic tool (some people never use LOL ) but you have now

for your two keys
called these ?
https://www.actionsecuritylock.com/e...uto-locksmiths
https://cars-locksmith.ca/edmonton/

pmercury

iTrader: (2)

Ok
here is the easy and cheap solution for the key

forget about Mercedes

Get a used keyless go key from a W215 2005+
take your old key, swap the NEC chip, done

You will still need to swap rear module (that contains absolutely NO vin or serial info)
and activate with Xentry DAS (the tool some people never use LOL)

Kelvin Bellrose

I tried both locksmiths and several others and they all say it's only possible through MB. I know this is not true but they all say the same thing.

Just like all the parts people are programmed to say the same thing.

pmercury

iTrader: (2)

can you make a recto-verso picture of your Chinese blank key ?

Kelvin Bellrose

I am having trouble taking it apart. I can see the board and it must slide out, but I don't want to break it.

And not sure what a recto vision is

pmercury

iTrader: (2)

recto-verso = front and back
expression based on latin
not "late in" but Latin the language lol

Kelvin Bellrose

Lol My latin is about as good as my greek.



And it is a 315 Mhz frequency, which should be correct.

pmercury

iTrader: (2)

lol

Looks not good for Nec Chip swap
neither they look like having keyless go ( no antenna on the board)
see a same board key on sale here, they don't mention keyless go
https://www.ebay.com/itm/YH-Smart-Re...YAAOSwokJacA19

maybe you should sell or return them

Marcbg

Hi there,

Thank you for the excellent info on this post,

I've gone ahead and ordered a black KG replacement key from the dealer, with part # A2307660106 9999 (EU 433mhz key as I have an EU vehicle)

I put said key in the ignition after starting the new replacement key procedure on Star Diagnosis, and the cluster will display 'Computing Data Please Wait'.

But after 20 minutes, the 'Computing' message dissappears.. Still, I've left it on for 4 and a half hours and no luck - key won't turn in ignition at all.

Star Diagnosis flags an EZS fault which occurs after the 'Computing Data Please Wait' message disappears, the fault is as follows:

B1012 Output Circuit 15



Could anyone shed some light? Any idea what could be wrong?

Cheers

pmercury

iTrader: (2)

there is no replacement procedure to do
you just needed to add a key in a free slot

pmercury

iTrader: (2)

Ok

just sorted this out by remote

So for all readers:
Remember when you order the key

read with Xentry Das what keytrack is free
this MUST be from 1-5 ONLY the retrofit does NOT work with tracks 6-8
if you have no free track from 1-5 forget it you need to get one free with MB dealer or good locksmith having Arbrites or Xhorse

Once you know what track is free tell mercedes dealer you want it programmed to that free track
keys come CODED only so no extra fees

good luck

126.044

A2307660106 9999 is a unprogrammed key without any VIN info. I would be surprised if this will work. OEM? Which dealer?

pmercury

iTrader: (2)

No
mercedes benz dealers do not provide unprogrammed keys
when you order, they come programmed, never from stock, only on special order and ONLY programmed in germany

126.044

that's what i heard too. But 9999 means unprogrammed, right? Shouldn't he order 0041 or if a certain track must be used i.e. 0032 or 0042?

pmercury

iTrader: (2)

maybe yes
all I know is that you go to the dealer abd order that key, they ask what car and you must mention what track

If you have the right number post it, you will be responsible if wrong, if not, this does not worth writing and writing here for no purpose
just do what I said and you'll be fine and it will work

Marcbg

Just wanted to say special thanks to @pmercury for taking all the time and hassle to help me out, and the rest of users on this post as my KG functionality is now working fully

I did find though that the key I ordered was not unprogrammed, as 126.044 mentioned, it was in fact assigned to track 8 when I received it.

As an additional note I just wanted to ask - my starter seems to either stay engaged for too long (still cranks for a few seconds after engine is started) or too little (disengages before engine gets to start) when using Keyless Go. Would anyone happen to know what could cause this?

Also since I bought the car I did notice when using the key in the ignition to start it (Position 3), I have to wait until the engine has started before I can put the key back in to position 2, otherwise starting will be interrupted - is that normal? car is MY 2000.

My other car does not behave like this, I.E as soon as the key is turned to position 3 it will do the starting automatically even if I let go of the key back to position 2..

Marcbg

By the way, I just wanted to add - beware of buying a second hand keyless go key, with the intention of trying to swap the NEC chip from your old regular key -

While this procedure would work if we were talking about a regular non keyless go key, to another non keyless go key, in my case the NEC chip type was different for black Keyless Go key A2307660106.

I tried swapping NEC's twice with no luck so be warned. It was incompatible and I had no idea about this, thought it was bad soldering at first.

In case you are wondering, the NEC chip found on the black KG key that I ordered was: NEC 00032094

126.044

I doubt that this swap will work, too. However the combination "NEC 00032094" is, from what i know, for MB OEM-key, not possible. Do you have a photo of this chip fixed on the board?

Marcbg

Just took these two pictures, first one is KG key, and the second one is the chrome key which I tried taking the NEC from. When I did the swap, the key's LED would flash red once as soon as it had the battery inserted and then didn't respond to button presses or would flash the LED very faintly ocassionally, it even drained the cr2025.. which is why I thought it was bad soldering.. As soon as I undid the swap, everything worked fine again..

pmercury

iTrader: (2)

interesting, what works and has been tested is swap the NEC from non working key to a used ebay same Keyless go incorporated key. that avoids to pay MB for a new key.

parkertime

Hi , I read your post , & I have w220 2003 , & I get a used key on ebay of 2005 with KeylessGo, I whan to swap the nec chip , My question is I have to swap nec chip of the 2005 to my old smart key from 2003 only ? Nec chip for Nec chip ? Because the picture your post your a pointing to the other chip
please le me know , thank