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Old 12-19-2002, 08:21 PM
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blackmercedes blackmercedes is offline
Just a guy
Join Date: Dec 2000
Location: St. Albert, Alberta, Canada
Posts: 3,492
Originally posted by Benzmac
There should be a thin black key that resembles the smart key, but is 1/4 the thickness. All cars with smart key came with them.
Your car should have come with two SmartKeys of "full size" and one "flat key" which is a smaller thin plastic key that has a removable small metal blade for opening the door and a transponder for starting the car.

A common failure with SmartKey cars seems to be the key itself, but my C230 had the EIS go bad. If the problem persists with a new key or your flat key, then you'll probably have to replace the EIS. Otherwise, the key is at fault.

Is the car under warranty?
John Shellenberg
1998 C230 "Black Betty" 240K

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