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Here's weekly dose of your catastrophic engine forensics! Every week you can find a new teardown of some abused, misused and/or poorly designed engine. I've got over 150 videos of failed engine teardowns on this channel.
This week's teardown is a Mercedes Benz M278. A 4.7L DOHC Bi-Turbo DI V8. These engines make 400-450hp and come in midsized and larger cars and SUV's with the 550 designation starting around 2011. This particular engine is from a 2013 ML550 and is a core return from a local salvage yard. As such, I don't have information like mileage or suspected failure.
In this video I tear this engine down complete and try to figure out what went wrong and why, as well as what parts I can salvage to resell. These engines have a LOT of pricey parts so they are quite lucrative for the shop but those parts have to be good.
Why am I doing this? I own and run a full service auto salvage business called Importapart, and part of our model includes dismantling blown and bad engines to reclaim the good, sellable parts from them and recycle the rest. We do not rebuild engines, merely supply parts to those that do.

I really hope you enjoyed this video. As always, I love all of the comments, feedback and even the criticism. Catch you on the next one!

-Eric