I have a 2005 C230 and I'm getting a P0410 code which is an issue with the secondary air injection system. I've watched Kangaroonicorn's video ( ) from about 10 years ago, which is very good but unfortunately, he has a 2002 and my situation is a bit different and I haven't been able to find a picture or video of the fix. I THINK the valve I need to check is in the following picture. Can somebody confirm or set me straight?

Thanks!

Is this the valve for the secondary air injection on a 2005 C230?

Doesn't anybody know what that gizmo is for?

Yes, you're on the right track. The C230k with the M271 uses the supercharger as the "secondary air pump". That photographed valve ought to be opened at cold-start so that the compressed air enters the exhaust stream.

Start your investigation by checking whether that valve will open at cold-start.

Thanks for confirming my suspicion, smgak! I appreciate the help!