S-Class (W221) 2007-2013: S 320 CDI, S 350, S 450, S 500, S 550, S 420 CDI, S 600

can a '12 spare key be programmed to work with a '13?

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Old 09-02-2015, 11:53 AM
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'13 w221
can a '12 spare key be programmed to work with a '13?

hello all,

as per the title of the post, can a spare smart key from a '12 s550 4matic be reprogrammed to work with a '13 s550 4matic ?

found a spare from the '12 we had and only hve one key for the '13 we have right now so a spare would be helpful !

thank you !

Last edited by IMEX1PCT; 09-02-2015 at 11:57 AM.
Old 06-28-2017, 09:58 PM
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2016 C300
I'm not sure that's correct.
Old 06-29-2017, 11:17 PM
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W221 S600, W220 S55 AMG Kompressor, W124 300E, W140 S320, W210 E3204M W164 ML320 Bluetec
Originally Posted by IMEX1PCT
hello all,

as per the title of the post, can a spare smart key from a '12 s550 4matic be reprogrammed to work with a '13 s550 4matic ?

found a spare from the '12 we had and only hve one key for the '13 we have right now so a spare would be helpful !

thank you !
Through legitimate channels, no. Through questionable channels, it may be possible, but the most reliable and recommended way is just order a spare from your dealer. It will be programmed to your car when you receive it, and will just work.
Old 11-05-2018, 10:37 AM
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1922 Ford Model T / no OBD
I just check Husker (my favorite MB dealer) and they sell chrome keys for $130. https://www.mbdirectparts.com/oem-pa...21176636069999
The picture is not clear and description says about transmitter, but it is the key no doubt. This is the price I paid for chrome key over 10 years ago.
Worth emailing them what is procedure.
I noticed that after posting, that the forum script did it again.
I was responding to topic in W210 section and script placed it in W221 section.
I think it will help here as well, so I am leaving it.

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