Originally Posted by COS_CFF2017

I am new to the forum, so please pardon my ignorance. On this photo, could someone tell me which is the air injector in question and where are the electrical and air line connections that need to be checked. Mine was working fine until I accidentally spilled some oil on my serpentine belt, causing the belt to jump off. Now the check engine light comes on with the P0410 code. I am thinking either some oil got on the electrical connection or the belt hit the air line, but cannot tell where on this photo to locate those. I have a Mercedes SLK320 WHICH i am told is the same engine.