My alt belt broke off and I need to replace it. But I don't know how to access to it. Don't know which nut to loosen what. It seems that I have to loosen a bit of things before I could access to the pulley. Can anyone put a link to a DIY page for me??? Thanks.

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1986 560SEL - Alpine headunit with DVD Navigation system, European headlights, Parrot bluetooth carkit.