My Check engine warning lamp is not working properly/would not illuminate during smog check.
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1996 Mercedes-Benz C220 Question: How do you correct a check engine warning lamp failure?
You're saying when you turn the key to the first position the light will not illuminate? We would have to check the bulb and the power to the socket. Please tell me you didn't just buy this vehicle without having it inspected...
POSSIBLY A BURNED OUT BULB, THIS HAPPENS AT TIMES