THE ENGINE LIGHT ON MY 95 S420 IS ON, I HAVE A CODE READER BUT I DONT KNOW WHERE THE HOOK UP IS. CAN SOMEONE DIRECT ME PLEASE.
If I'm not mistaken, it should be under the dash on the driver side.
if its obd2 it has to be somewere around the driver(prob. under the dash) or under the hood
get a chilton/haynes repair guide it will tell you exactly where to look
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