Help Me Please!
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2008 mercedes e350
Help Me Please!
Hello everyone, I have a 2008 Mercedes e350 that was idling pretty rough, so I decided to change the spark plugs. After driving it around, a check engine, the light came on, and I could not accelerate as fast as usual. I used a scanner, and the code I have was p2006 which means that the Intake Manifold Runner Control Stuck Closed Bank 1. I'm not even sure why this happened because I didn't mess with my intake manifold at all. Wondering if anyone else ran into the same problem and can help.
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Joined: May 2021
Posts: 2,527
Likes: 2,044
From: US
2008 E350, 2012 ML350, 2014 E350, 2015 ML350
Have a quick look at this video
I currently have P2004 because the plastic piece is broken, and I need to change it for the metallic repair kit available online. The video shows other cases where the intake may get stuck. Perhaps you moved/left something that prevents the flap's arm's mechanism to return (hopefully instead of a broken part).
Take a flashlight, remove the engine front cover, both are better, and shine the flashlight at the front of the intake manifold. You can try softly moving the passenger-sided flap mechanism, if it moves freely there is a broken piece in the mechanism and you can try to see if it is the external part or further inside the manifold.
It is not a trivial fix since taking the intake manifold out is a tedious process, but it is not rocket science. I understand it is a minimum 4 hours job + part; therefore, at the dealer would be @$1200+.
https://www.fcpeuro.com/products/mer...kaArcYEALw_wcB
https://mbparts.mbusa.com/oem-parts/...Y2LWdhcw%3D%3D
Here is a video showing the process (there are others online as well)
NOTE: I moved the flap in the stuck Open position. The engine idles great and runs smoothly at all speeds. Except for the P2004 code, no CEL light at all. However, I will definitely change it once the weather cools down a bit.
Good luck
I currently have P2004 because the plastic piece is broken, and I need to change it for the metallic repair kit available online. The video shows other cases where the intake may get stuck. Perhaps you moved/left something that prevents the flap's arm's mechanism to return (hopefully instead of a broken part).
Take a flashlight, remove the engine front cover, both are better, and shine the flashlight at the front of the intake manifold. You can try softly moving the passenger-sided flap mechanism, if it moves freely there is a broken piece in the mechanism and you can try to see if it is the external part or further inside the manifold.
It is not a trivial fix since taking the intake manifold out is a tedious process, but it is not rocket science. I understand it is a minimum 4 hours job + part; therefore, at the dealer would be @$1200+.
https://www.fcpeuro.com/products/mer...kaArcYEALw_wcB
https://mbparts.mbusa.com/oem-parts/...Y2LWdhcw%3D%3D
Here is a video showing the process (there are others online as well)
NOTE: I moved the flap in the stuck Open position. The engine idles great and runs smoothly at all speeds. Except for the P2004 code, no CEL light at all. However, I will definitely change it once the weather cools down a bit.
Good luck
Last edited by JCM_MB; Aug 31, 2021 at 03:51 PM.
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Joined: Feb 2014
Posts: 6,190
Likes: 1,550
From: MA
2008 E350 4Matic, 2011 E350 4matic
I currently have P2004 because the plastic piece is broken, and I need to change it for the metallic repair kit available online. The video shows other cases where the intake may get stuck. Perhaps you moved/left something that prevents the flap's arm's mechanism to return (hopefully instead of a broken part).
Take a flashlight, remove the engine front cover, both are better, and shine the flashlight at the front of the intake manifold. You can try softly moving the passenger-sided flap mechanism, if it moves freely there is a broken piece in the mechanism and you can try to see if it is the external part or further inside the manifold.
It is not a trivial fix since taking the intake manifold out is a tedious process, but it is not rocket science. I understand it is a minimum 4 hours job + part; therefore, at the dealer would be @$1200+.
NOTE: I moved the flap in the stuck Open position. The engine idles great and runs smoothly at all speeds. Except for the P2004 code, no CEL light at all. However, I will definitely change it once the weather cools down a bit.
Good luck
Take a flashlight, remove the engine front cover, both are better, and shine the flashlight at the front of the intake manifold. You can try softly moving the passenger-sided flap mechanism, if it moves freely there is a broken piece in the mechanism and you can try to see if it is the external part or further inside the manifold.
It is not a trivial fix since taking the intake manifold out is a tedious process, but it is not rocket science. I understand it is a minimum 4 hours job + part; therefore, at the dealer would be @$1200+.
NOTE: I moved the flap in the stuck Open position. The engine idles great and runs smoothly at all speeds. Except for the P2004 code, no CEL light at all. However, I will definitely change it once the weather cools down a bit.
Good luck
https://www.fcpeuro.com/products/mer...kit-oem-515810
MBWorld Fanatic!
Joined: May 2021
Posts: 2,527
Likes: 2,044
From: US
2008 E350, 2012 ML350, 2014 E350, 2015 ML350
Thank you for the advice.. Definitely, I will look at the intake overall before committing to the metal actuator, or a new intake.
I think the actuator is nothing else but a mechanical fuse in case the flaps get stuck (as you clearly indicated), but I am getting the impression the actuator is failing due to high cycle fatigue within a high-temperature environment, and not necessarily the flaps getting gummed up. If there were that much oil being ingested, I am sure other symptoms would show up earlier.
The thing though that irks me a bit with MB engineering of this intake is that an air filter is added to prevent foreign objects to be ingested into the engine, but they purposely design a part internally that can be ingested w/o warning --> Poor, very poor engineering ( I am an engineer and my colleagues will NEVER approve such a design ). They purposely added a failure point within a critical component (with a fuse), and it is not even listed as a wear mandatory service item.
I think the actuator is nothing else but a mechanical fuse in case the flaps get stuck (as you clearly indicated), but I am getting the impression the actuator is failing due to high cycle fatigue within a high-temperature environment, and not necessarily the flaps getting gummed up. If there were that much oil being ingested, I am sure other symptoms would show up earlier.
The thing though that irks me a bit with MB engineering of this intake is that an air filter is added to prevent foreign objects to be ingested into the engine, but they purposely design a part internally that can be ingested w/o warning --> Poor, very poor engineering ( I am an engineer and my colleagues will NEVER approve such a design ). They purposely added a failure point within a critical component (with a fuse), and it is not even listed as a wear mandatory service item.
