Part 7

WM 1001IN Tightening torques, tightening sequences, assembly overviews for V8 4.8 l DFI naturally aspirated and turbo engine up to October 2008

Group 19





Coolant pump









Tightening sequence for coolant pump





Coolant guide









Thermostat housing









Tightening sequence for thermostat housing





Coolant return line on turbo engine M48/51









Coolant return line on naturally aspirated engine M48/01









Coolant supply line on turbo engine M48/51









Coolant supply line on naturally aspirated engine M48/01









Ventilation





Group 21





Turbocharger, cylinders 1 to 4 - cooling









Turbocharger, cylinders 5 to 8 - cooling









Oil circuit for turbocharger, cylinders 1 to 4









Oil circuit for turbocharger, cylinders 5 to 8









Oil circuit for turbocharger, line connection, cylinders 1 to 4









Turbocharger, cylinders 1 to 4









Turbocharger, cylinders 5 to 8









Boost pressure and wastegate









Boost pressure and wastegate 2





Group 24





Fuel distribution pipe









Injectors (high-pressure fuel injectors)









Mount for fuel distribution pipe









High-pressure pump on turbo engine M48/51, 6-piston pump









High-pressure pump on naturally aspirated engine M48/01, 3-piston pump









Lambda sensor on naturally aspirated engine M48/01, cylinders 1 to 4









Lambda sensor on naturally aspirated engine M48/01, cylinders 5 to 8









Tightening sequence for intake module (shown on M48/01) valid for M48/01 and M48/51





Intake module on naturally aspirated engine M48/01









Variable intake manifold actuator on naturally aspirated engine M48/01









Intake air module on turbo engine M48/51





Group 26





Tightening sequence for exhaust manifold on naturally aspirated engine M48/01, cylinders 1 to 4





Tightening sequence for exhaust manifold on turbo engine M48/51, cylinders 1 to 4