Hi, Ok just bought another Merc...ML280 Edition 2007....hope to get pro remap at some point... anyway, Long story short the engine cover was off....but they have it and car drives fine....but what is this in the red Circle? I've googled images of the 3.0 CDI engines and I think....it maybe on upsidedown or something....as none of the engines without covers on look like this?? My thought was Cruise control as its a motor thing that if turned by hand returns back say as you'd expact a thottle body to do....but criuse works fine? it bugging the hell out of me....one not knowing and two whats it for and could it be needed etc....looks as though a cable should be atached its clearly ment to operate something and isn't connected to out? PLEASE HELP!