Brief component description: Notes

The following cooling circuits are described:

• 6-cylinder diesel engine N57D30S1 (three-stage turbocharging)
• 6-cylinder diesel engine N57D30T1 (two-stage turbocharging)
• 6-cylinder diesel engine N57D30O1 (single-stage turbocharging)
• 4-cylinder diesel engine N47D20T1 (two-stage turbocharging)
• 4-cylinder diesel engine N47D20 (different power classes, single-stage turbocharging)