I'm looking for suggestions as to where I might find/purchase a shop manual, electronic or paper, for a '15 GL63 AMG. Hoping that I won't need it too soon, but having recently bought this vehicle and now reading about the potential problems that may have caused a 'cylinder 5 misfire detected' within about two weeks of ownership, I want to better understand what I'll be up against if the worst comes to be.

Thanks,
Matt