1997 e420 that wont pass smog???? - Mercedes-Benz Forum

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post #1 of 3 (permalink) Old 03-04-2011, 07:41 AM Thread Starter
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1997 e420 that wont pass smog????

I have a 1997 e420 that wont pass smog due to the computer not fully resetting. Does anyone know what causes this and what i can do? The mechanic i have said i need to keep driving the vehicle to get the computer to reset fully. I have driven over 200 miles and the computer is still not fully reset.

Thanks Adam
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post #2 of 3 (permalink) Old 03-04-2011, 08:27 AM
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Welcome to the forum Adam.
Your car is W210 body and you will find more precise info in the appropriate section.
I drive diesel for last few years, but remember a topic with procedure that will reset computer in 1/2 hr. Look for older topics by ohlord.
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post #3 of 3 (permalink) Old 03-04-2011, 08:51 AM
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