RUBYMARDIONO

My car (C200 w203) just only has one key. I went to Merc dealer and asked about it. Hell, it cost about NZD 500 and has to be made in Germany. Anybody knows the short cut, coz I've got only one now, I dunno what happen if I get locked in.

coin

Don't forget to ask for the new key style as posted in the tread below .

https://mbworld.org/forums/c-class-w203/116081-new-key-style-my-c-class.html

sirenebekim

I have key electronics and a damaged case I can sell you for cheap.. it will work just needs reprogrammed to your car

$10 + shipping

The panic button is picked off but is still functional.

mleskovar

Bad offer.....doesn't work that way. You need to get the key from MB already programed. It will cost them more in shipping and policy changes (if they'll even do it).

sirenebekim

i didn't have any problem getting a key i ordered from ebay reprogrammed at the dealership for free.

might be different by you

mleskovar

Sorry, don't believe you. Local dealers don't have the capacity to program keys. It's part of the security process for the keys. They can replace keys but they must order them pre-programmed. I call

raymond g-

i agree. no previously owned Ebay key can be reprogramed at the dealer.
they come new/preprogramed based on your VIN. once programmed, they
cannot simply be flashed using the same electronics package, it seems.
from what I can tell, this is hard/firmware encoded.

http://w210.pietrzyk.net/electrical_rclatapse.htm

http://w210.pietrzyk.net/82bodyelect...ASvehikeys.htm

sirenebekim

ok well if they can't do it then call mercedes benz of tampa and rat them out.. i think its pretty rediculous and not cost effective to have to make new keys each time someone wants a spare... I bet they have non-volatile memory chips that can be flashed, they do have a IR port ya know


Ir port? Yes two way communication via infra red light pulses.. How does it know which random number has been generated each time you start the car? Communication.. If there is communication it can be reprogrammed, its very simple computer science.


But it does also make sense for mercedes to not allow the keys to be reprogrammed as they could make more sales with your proclaimed setup. I would think you could make more money from flashing software than selling hardware... ZERO Cost in flashing software!

raymond g-

yeah...technically speaking, i gets yer drift. point well taken. if it can be
programmed in the first place, it is possible to be reprogrammed again,
provided the hardware allows. i think you're saying that the "it cant"
obstacle may simply be a policy issue as well, yes? it may also be
hardware prohibited but i dont have the smarts to disassemble and
to determine this angle.

mleskovar

Didn't say can't....you said can't. I said they don't have and were not given the capacity, the means, the equipment to do it. It's all about security. It may be cheaper for them to ship new keys than recycling provided keys back and forth (and keeping track of them). Keys are only as safe as the ability to reproduce or bypass them so I'm less worried about someone stealing the digital secret from a central source than an open market. Good, safe, strategy.

sirenebekim

your right i see it your way, that is a safe way to play it.. That makes me easier now that my car can't be stolen!

BKLYN_C

Technically speaking, the key must have 2 memory chips to be reprogrammed via IR port. It must have soefficient processing chip to be able to support this kind of functionality. Sorry to disappoint you, but MB keys must be reprogrammed via wires. While ago I asked MB of manhatten to reprogramm a key. The answer was no although they had a capability to do so. The new key must come blank from MB, only 2 keys are allowed to be enabled for a car at any given time. Maybe MBUSA/MB of Manhattan has stricter policies that its dealers.

ScottW911

I just bought the new '07 style key and it is now working just fine as my 3rd key. I read somewhere that the W203 can handle up to 3 keys with memory settings and 5 total. I might be off in my numbers, but I am definately using all 3 keys now.

BKLYN_C

That's what I was told by the dealer, so i was sure my 05 c230 has memory ***** only for 2 keys. Think I will need to go to another dealer for this

BKLYN_C

found this on AMG forum: new style key for $61

https://mbworld.org/forums/clk55-amg-clk63-amg-w208-w209/179801-got-my-new-chrome-key-today.html

yeuchau

just get it from oempartsdirect.com

BKLYN_C

That's exectly what it is. So for me the buttom line is that my dealer just didn't wont to give me another key

ScottW911

My dealer wanted $220 for the new key and said it problably wouldn't work. oempartsdirect charged me $51.70 (I got free shipping because they were so slow) and it worked the moment I tried it out. Bam! 3 keys working perfectly.