Has anyone heard of there being a limit on sequence or number of
keys due to Mercedes chip/computer limitations?
I recently purchased a '97 E320 with a single, switchblade key.
The alarm and key functions worked fine until I ordered a standard key
from the dealer. When I picked up the car after the dealer "programmed"
the new key in, the new key worked but I later found the old key no
longer started the car.
Back to the dealer who said something like "OOPS! your switchblade
key is from series "8", so it cannot ever be used again since it is at
the top of the series." Two of the dealer's mechanics spent
considerable time trying to re-program my switchblade key vs car
including various door entry and ignition tricks from other cars but all
Thanks for any help,
Email replies, please just substitute "yahoo" for "nospam"
My understanding is that when key number eight comes off the hook at the parts
depot, that;s it.
425 White Horse Pike
On 13 Oct 2003 02:13:38 GMT, firstname.lastname@example.org (Bill Ditmire) wrote:
With a DAS3 car you have 8 key tracks, and each key track has 3
Once they are all used you need a new EIS switch.
Switchblade keys are for DAS2b cars though, so IFZ instead of EIS. I
think the principle is the same but to be honest it's so long since I
knocked out a key on a DAS2b car that I can't remember...
Certainly NOT what I was hoping to hear.
Just out of curiosity, if the IFZ is the infrared remote sensor,
how is it related to the key and ignition? I thought that there was a
"chip" in the keys and those "chips" interfaced electrically through the
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