E-Class Coupe (C207) & Cabrio (A207) 2010-: E250CDI Coupe, E350 Coupe, E350CDI Coupe, E500 Coupe, E550 Coupe [Coupes & Cabriolets]

Check Engine light FYI

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Old Oct 24, 2023 | 12:17 PM
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From: Vancouver British Columbia Canada
C207 550
Check Engine light FYI

Hey all this is just an FYI...
Check engine light came on with no other message.
spent 2 days wondering when the 550 was gonna leave me stranded, and where it was gonna leave me stuck, and whether I was gonna freeze my butt off waiting for a tow, and how much it was gonna cost me...
found some threads about checking the gas cap, so I did. I think it was loose.
people also mentioned, after reseating the gas cap that it can take a day or 2 before the light goes away.
several restarts didn't help, but after 2 days the light went away.
MB, how hard would it have been to pop up a message saying check the gas cap lol.
That's a lot of anxiety for an unsecured gas cap!

Have a good day folks!
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Old Oct 24, 2023 | 05:28 PM
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2010 E550 Coupe
Hopefully that's all it was. If so, I agree with you- it would seem appropriate to provide a simple message to tighten the gas cap.

I would deifnitely scan for codes just in case.
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Old Oct 25, 2023 | 10:18 AM
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pl626's Avatar
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2015 E400
Originally Posted by nkx1
...I would deifnitely scan for codes just in case.
OBDii scan tools are so cheap these days, it's silly not to have one. You can get a dedicated scanner or one that transmits to your smartphone...
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