Since the engine is out and everything is easy to get at you might as well do as much as possible now.

Say this engine was built in 1986, so it would be 20 years old. Most of these cars averaged between 10k-15k miles a year. So this engine probably has between 200k-300k on it.

Turbo's don't typicaly blow out all of a sudden. So you can probably just inspect it and see if their is any play in the bearings.

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2006 CL500
2009 C300 4matic
1969 280SE
2023 Ram 1500
2007 Tiara 3200