Since you are newer to wrenching on things I would go very slow on doing this. Create a favorites list of all relevant threads in your browser. Print them off if you need to. You also want to create a list of relevant videos on your watch later list on your you tube account. You might end up going slow as hell but at least if makes it pretty much fool proof. Not saying you are a fool, but I treat myself as one and plan accordingly when doing my own DIY. Especially since I am new to it as well.

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2004 E60 545i Sport 6MT. Black/Black Build Date 6-2004 102k miles