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Trouble Code P0521

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Old Jan 23, 2021 | 12:21 PM
  #1  
anthonym13's Avatar
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From: Forked River, NJ
2014 C63
Exclamation Trouble Code P0521

Today I ran a scanner and a trouble code came up. P0521 The charge movement flap (cylinder bank 1) has a malfunction. I don’t have a check engine light on or any issues with how the engine runs. I also have no idea what this trouble code means. Any ideas?
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Old Jan 23, 2021 | 09:50 PM
  #2  
anthonym13's Avatar
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From: Forked River, NJ
2014 C63
Thanks Plutoe you are a giagantic help! I don’t know what I would have done if you didn’t give me the brilliant idea of just googling the problem...seriously you are awesome. I’m so glad I took the time to start a post here instead of just going right to google.
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Old Jan 25, 2021 | 06:56 AM
  #3  
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From: Melbourne, FL
2011 C300 Sport
Try these:

https://mbworld.org/forums/e-class-w...or-0521-a.html

https://www.mercedesmedic.com/merced...le-lever-flap/

https://www.pelicanparts.com/techart...tor_Repair.htm

Since it has not thrown the code yet, and you have not noticed any issues, it may only occur at higher RPM's where you don't normally play..
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Old Feb 18, 2021 | 05:12 PM
  #4  
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From: Forked River, NJ
2014 C63
Thanks Glock19 I was getting trouble code because my air flap lever was busted on the front of the intake manifold. I ordered a rebuild kit from https://www.autohausaz.com/pn/2721402401RPRM and it fixed the issue.
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Old Feb 18, 2021 | 07:19 PM
  #5  
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From: Melbourne, FL
2011 C300 Sport
Sweet.. glad it worked out...
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Old Sep 5, 2022 | 01:40 AM
  #6  
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From: Arizona
2014 CLS63
I know this is an old thread but maybe you can help. I have a 09 SLK which has the same problem. I can see that the lever is broken. Did you have to remove the entire manifold? What happens if it doesn’t get fixed right away? Can I still drive it? Thank you for any help to these questions.
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