Pulling the cabs off for engine swaps or cylinder head replacement. Very common for Eco diesels to have catastrophic failure in the bottom end as well as seized glow plugs in the heads.I would never own one,regardless of the fuel mileage.
I feel your pain regarding experience and factory training. The more you know the less money you make.We have a few new hires in the shop that have no training levels and can’t do any warranty, so they scoop up all the gravy