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

Manifold Flap Fault

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Old 05-09-2023, 05:06 PM
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2009 C350
Manifold Flap Fault

I’ve dealt with this before many years ago. It seems that the middle part has come out of the holder.

Power is mostly still in tact. I don't see anything broken but tough to see in there.

The scan says: 0521 The charge movement flap (cylinder bank 1) has a Stored and Current malfunction.

I wonder if it's just a sensor
issue or carbon build up?

https://youtube.com/shorts/l2yTaTQO5B8

Obviously I'll have to have a mechanic look at it. Opinions?

Last edited by Nicholi2007; 05-17-2023 at 02:54 PM.
Old 05-17-2023, 02:54 PM
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2009 C350
Bump, it looks like the actuator is broken inside. Anyone?

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