BavariaTexan raised a point I was going to mention. Your 01 V8 would be the M62TU engine. That same engine is in the 1999-up e39 540i/iT & e38 740i/iL...so if information on the e53 forum doesn't provide enough details...you may find more extensive DIYs on the e38 & e39 forums (as well as YouTube) since they have the same engine, and owners asking the same questions, and being confused by the same things.

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