How do I test the Check Engine Light - Mercedes-Benz Forum

 
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post #1 of 2 (permalink) Old 06-13-2012, 03:13 PM Thread Starter
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Date registered: Jan 2012
Vehicle: '08 ML350, 99 ML320
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How do I test the Check Engine Light

On a 2008 ML350, is there a quick way to test if the CEL has been disabled? Something that I can unplug and then reconnect without damaging anything?

Last edited by Donldm; 06-13-2012 at 03:14 PM. Reason: Added the yr and model
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post #2 of 2 (permalink) Old 06-13-2012, 05:05 PM
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Simple. That should light up when your key is in the position right before you crank the starter. A lot of the other trouble lights should appear too. At least that's what mine does.

If you want the real nitty gritty on your car you should ask questions on your native forum, not on this general one. I think you have a W164.

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