530iT M60b30 rattles when hot

[632 Regal]

there are 2 different size rollers going on there, ask me how I know. Both of mine were worn yet only one was limp enough to scream for replacement. Belt replacement is a no brainer but some new ones can be problematic as my conti squeels at startup to charge the battery. Yes full voltage on a charger and no issue, don't charge and get a squeal. Car runs much better on a full charge.

Bottom oil pump chain is within tolerance your good to go. Very surprised no bolts backed out but on an alusil they may have got that memo and used loctite.

[genphreak]

It's common for the main (ie top) roller near the tensioner roller to fail, but they only start to squeak. If the belt is slipping you'll get squeal, that is contamination, wear or a faulty tensioner. It's kinda worth changing the lot in one go, and keeping the parts that are still serviceable as spares jic. That way you know it will all hang together out front for a long time.