Can the Oxygen Sensor be bad even if the Check Engine light isn't lit? - PeachParts Mercedes-Benz Forum

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Can the Oxygen Sensor be bad even if the Check Engine light isn't lit?

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#1

Old

06-03-2004, 06:00 PM

zeronero

zeronero is offline

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Join Date: May 2003

Location: San Francisco Bay Area

Posts: 426

Can the Oxygen Sensor be bad even if the Check Engine light isn't lit?

I think mine might be bad since my mileage is starting to drop, but the check engine light isn't on.

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1992 Mercedes-Benz 400E
2002 Mercedes-Benz ML500

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