Date registered: Sep 2004
Mentioned: 0 Post(s)
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RE: Remote Key ????
sorry guys, but im gonna level with you. you CANNOT
reprogram a smart key. your key is matched to only your vin number, and cannot be changed. the key contains a type of rom (or read only memory. one the specifics have been entered into the key, they cannot be changed. its so specific, that you need to tell a dealer when you order a key whether its a replacement for a lost key, or a addtional key. the EIS (or electronc ignition switch) is what you plug your smart key into. it has 8 specific key tracks. you can never have more than 8 keys for your smartkey benz. each track has 200,000 rolling codes. once these codes are "used" the key is useless and must be replaced. once all keys are used, the EIS has to be replaced. mercedes made these items this way so that you couldnt take any old smartkey to a dealer, give thema vin and have it programmed. then you could just specify the vin of any desired benz and POOF! youve got a key for it. the only "programming" that happens when you stick the key into the ignition is the EIS is identifying the key number (which track it is) and then varifies its current rolling code. once again, sorry guys. but why would the dealer turn you down to program a key, if there labor rate is 100 dollars and hour and it only takes 20 seconds? they wouldnt. thats pure frofit for the tech and the dealership.