giliav

Hi,
When my 2015 B200 CDI is in idle it sometimes "misses a beat".
It has 75K km-s on it and was treated in time from the day it was purchased.

I have scanned my ECU and got Error P200A21 - "The charge movement flap (cylinder bank 1) has a malfunction. The signal amplitude is less then the minimum amplitude"
I have cleared it and drove the car, then re-scanned and the error came up again :-(


Does that mean I need to find someone to take out the manifold or is there another potential cause which I can attend first?
I'm a DYI-er but am not sure of how to approach this issue.

Any advice/tips?

Attached is the scan result I got.

T R

Hey, did you find the issue? I‘ve got the same problem. Can you help me?

qwerty@1987

does anyone knows how to solve this issue ? or anyone who have faced this kind of issue ? can help me ?