C-Class (W204) 2008 - 2014: C180K, C200K, C230, C280, C300, C350, C200CDI, C220CDI, C320CDI

check engine light

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Old Sep 26, 2016 | 05:04 PM
  #1  
kavadarci's Avatar
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2012 C350 Edition 1
check engine light

All of sudden I got check engine light.
What I've changed is spark plugs with Denso irridium at 0.044 as recommended by Denso for this vehicle.
That was saturday.
It is rainy and humid today.

Is there anyway to retrieve codes without obd schanner?
Thank you.
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Old Sep 26, 2016 | 05:40 PM
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From: Bay Area, CA
2010 C300 Sport
I've had my light come on twice. Both times it was the gas cap.


I would just get an OBD scanner. You can get one for ~20 bucks on amazon with either BT or wifi and download an app for another 10 or so and you can diagnose and if needed erase the codes. Then you'll always have it for any vehicle going forward as well.
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Old Sep 26, 2016 | 05:45 PM
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2010 C300 4MATIC........ 2011 C63 AMG.............. 2015 CLS400 4MATIC.....
Go to autozone and get it checked for free
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Old Sep 26, 2016 | 06:47 PM
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2012 C350 Edition 1
Here
Attached Thumbnails check engine light-img_20160926_183742.jpg  
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Old Sep 26, 2016 | 06:57 PM
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2010 C300 4Matic Sport
If I were to guess it sounds like you need to double check that all the intake tubes are seated properly.
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Old Sep 26, 2016 | 07:04 PM
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2012 C350 Edition 1
I got out and when I lift the hood I can hear hissing sounds. Investigation continues
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Old Sep 26, 2016 | 07:15 PM
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2010 C300 4MATIC........ 2011 C63 AMG.............. 2015 CLS400 4MATIC.....
It says 1 of 3, are there 2 more codes?
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Old Sep 26, 2016 | 07:43 PM
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2012 C350 Edition 1
Problemo solved.
All three codes were saying the same.

Here is the story.
In an effort not to remove that one time use clip, see pics and as per instructions I lifted the air box upwards which as a result misaligned the plenum and the box was sitting slightly higher creating tiny gap where air was going through.

This time I removed the clip and aligned everything properly.
If I get new clip seems I need special tool to install it, I might buy just regular clamp.

Any suggestions?

Thank you for sticking with me on this one, it sure freaked me out and I was not looking forward to removing the plugs.
Attached Thumbnails check engine light-img_20160926_191840.jpg  
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Old Sep 26, 2016 | 07:46 PM
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2010 C300 4MATIC........ 2011 C63 AMG.............. 2015 CLS400 4MATIC.....
Good news, glad it wasnt a big deal!
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