Can someone please help me out. I just purchased my first mercedes, it is a 97 E320. The check engine light is on. My friend ran the codes and the P0410 came up the secondary air valve malfunction? (something like that) Can some one please give me insight on this? I am not a mechanical person whatsoever. I can change my oil and detail cars to perfection thats just about it. is it hard to fix? how much would a shop charge for this? I have been reading online some say it could just be the rlay other say it could be the air pump or both. Pictures would be great. Please anyone get back with me.

Thanks