Use a second wrench to hold the coolant hose coupling while loosening the line.
Remove the turbocharger coolant supply hose from the lubricating oil filter head.
Remove the smaller banjo bolt from the turbocharger electric actuator coolant inlet port and the large banjo bolt from the turbocharger bearing housing coolant inlet port.
Remove the turbocharger actuator coolant return hose by removing the banjo from the coolant inlet side of the EGR mass measurement flow assembly, the tube nut at the aftertreatment fuel injector, and the banjo from the turbocharger actuator coolant return port.