WOW! Further consequence of failed thermostat.
Home / BMW E70 X5 xDrive35d SAV / Repair Manuals and Technical Data / 11 Engine / 11 65 Charger with control /11 65 020. Damage on the exhaust turbocharger due to obstructed oil supply lines
Originally Posted by NewTIS
If the engine does not heat up or only heats up very slowly because of a defective thermostat, this can result in premature or repeated damage to the exhaust turbocharger. Always check the coolant thermostat and thermostat for the EGR cooling if there is a complaint, and repair if applicable.
It appears also that some sort of major revision to NewTIS is in progress. The file structure is not so useful, perhaps why I stumbled across this interesting and unexpected caution.
Scepticism and Animal Faith (1923)
Scepticism is the chastity of the intellect, and it is shameful to surrender it too soon or to the first comer: there is nobility in preserving it coolly and proudly through long youth, until at last, in the ripeness of instinct and discretion, it can be safely exchanged for fidelity and happiness. (The Works of George Santayana p. 65)
Eschew eristical argumentation. I am responsible for what I write, not for your understanding of it.