how to program a key - Mercedes-Benz Forum
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#1 (permalink) Old 12-22-2010, 08:55 PM
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how to program a key

hi, i'd like to know if someone could help me on how to program a key. i bought a blank one on ebay and need to make it work.
i have the one button remote key.

Bridget

Last edited by bridgionel; 12-22-2010 at 09:17 PM.
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#2 (permalink) Old 12-23-2010, 01:48 AM
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I heard that you can get an OEM at oempartsdirect.com.

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#3 (permalink) Old 12-23-2010, 04:56 AM
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Well the truth of the matter is that you got screwed. Metaphysically!!! MB keys are only legally programed by going to the or through the dealer.
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#4 (permalink) Old 12-23-2010, 05:33 AM
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Keys are coded by VIN at the parts depot, and then synced to the car
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#5 (permalink) Old 12-23-2010, 06:22 AM
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My parts guy advised me to get a second key ASAP when I mentioned that the previous owner only gave me one.

The keys have to be ordered through the MB parts department with proper identification (Matching names on DL and Registration - lease papers etc..) and you must have the car with you when you pick up the new key. They do not do any of the programing at the dealer -- the key came ready to go --- they just check the operation and sign off on the Vin #. I believe they are sent from the Texas facility -- took a few days.

If you loose both keys you have to have the car towed to the dealer so they can sign off on it. Evidently, they had cars stolen after people ordered replacement keys and also people taking cars in divorce situations.

I was told that they can not (or will not) reprogram them -- evidently they are asked all the time. When they need them for service -- they order new ones.

Sorry to say I do not believe you can use the key you bought.
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#6 (permalink) Old 12-23-2010, 09:33 PM
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Some advertisement on the internet:
Latest Mercedes Key Programmer
Introduction:
Need use by Motorola MC68HC908A260 Programmer, MOTOROLA-705X32 PROGRAMMER, MOTOROLA-711 Programmer, MOTOROLA-918 Programmer,VP380.
The new Mercedes device is working with smart key (old and new) used since 1997 up to 2005 (without Key Less Go system).
Function:
You can program new key (ore used one) in car and program own key if it can not work more.
You read and program eeprom of CPU from Steering blocking module via diagnostic connector (38 pins).
Desolder and read in programming tool two CPU from electronic Ignition Control Module.
Load these eeproms to program.
Desolder NEC CPU from the key.
Solder it on the device , select the No of key and program it.
Solder all CPUs on their places and start the car.
You can program new keys without the car - only with EIS and steering blocking modules.
You can read these CPUs with help programming tool (for ex. ETL) for Motorolla CPU 68HC705-16(32)
Supported vehicles:Program new ir key for Mercedes-Benz : W202、W208、W210、W220、W203、W215(old)、W215(new)、W230( old)、W230(new)、W209(HC12)、W209

Does any body try it?
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#7 (permalink) Old 12-23-2010, 09:52 PM
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Quote:
Originally Posted by Plutoe View Post
Well the truth of the matter is that you got screwed. Metaphysically!!! MB keys are only legally programed by going to the or through the dealer.
That about summarize it. The keys are programmed in single, secret location in USA and are coming ready to use from the box.
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#8 (permalink) Old 12-24-2010, 11:43 AM
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fyi, I programmed my key with a credit card.
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#9 (permalink) Old 12-24-2010, 12:14 PM
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I believe your '99 has a totally different key than the '97. The '97 in the US has a key with a chip in it that must be bought through the dealer. The flat key is as cheap as $25 to $30. As mentioned, you want to have more than one key as the chip in any one key can stop functioning and leave you unable to start the car. I have had a valet key stop working, and I accidentally killed another.
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#10 (permalink) Old 12-25-2010, 08:03 PM
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The new Mercedes device working with smart key (old and new) using in car since 1997 up to 2005 - without keylessgo system. You can program new key (or used) in car and program oun key if its not work more.

As quoted in the following LINK:

Benz smart key programmer | obd china

Does any body try it before?
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