Instructional video on how to replace the secondary air injection pump and its associated relay on a 2005 Mercedes-Benz. In this video, I was doing the repair on my 2005 SLK55 AMG, but this applies to many newer mercedes models. Most of them have the same setup. This repair was to resolve a check engine light giving code P0410 - secondary air injection malfunction. The beginning of the video, I explain background on how I knew this was the necessary repair in this case (P0410 is a general code which may be triggered by various causes). This is a common Mercedes problem. Hopefully this video is useful to you and can help save you money and prevent un-necessary time at the dealer. Enjoy! and Good luck!

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