Mercedes M Class Mercedes ML350 and Mercedes ML500 SUV's.

P0410 error code

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Old Oct 8, 2025 | 06:54 AM
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Thumbs down P0410 error code

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Getting a P0410 error code on my 2008 Mercedes Benz ML-350- it's the "secondary air injection system is malfunctioning".

Had it a few years back and the air/smog pump fixed it. But have it again. I changed the pump again thinking maybe the aftermarket part just failed, although it was turning on, it didn't seem to have a lot of power. Either way, didn't fix it, so went to logic parts:
  1. Pump
  2. Bypass value
  3. Check value
  4. Relay
I cleared the code but after a week it came back. At a loss...

Anyone have suggestions?

Thanks in advance!
 
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