13 53 INJECTOR NOZZLES AND LINES (M550i xDrive 2018-2019)

13 53 TIGHTENING TORQUE OVERVIEW

Fuel delivery line to high pressure pump
M14	Tightening torque	30 Nm
Fuel delivery line to high pressure pump
M14	Joining torque	10 Nm
	Tightening torque	30 Nm
Fuel supply line to cylinder head cover/cylinder head
M6x16	tightening torque	10 Nm
High pressure line to high pressure pump
M14	Joining torque	10 Nm
	Tightening torque (retorque twice)	30 Nm
High pressure line to injector
M12	Joining torque	10 Nm
	Tightening torque (retorque twice)	23 Nm
High pressure line to rail
M12	Joining torque	10 Nm
	Tightening torque (retorque twice)	23 Nm
High pressure line to rail
M14	Joining torque	10 Nm
	Tightening torque (retorque twice)	30 Nm
Hold-down device to cylinder head
M7	Tightening torque	13 Nm
Injector hold-down device to cylinder head
M7	Tightening torque	14 Nm
Rail on cylinder head cover
M6x25	Tightening torque	10 Nm
Rail pressure sensor to rail
M10x1	Tightening torque	27.5 Nm
Rail to high pressure pump
M14	Joining torque	10 Nm
	Tightening torque	30 Nm
Rail to injector
M12	Joining torque	10 Nm
	Tightening torque	23 Nm
Special tool 2 410 777 to injector well
M6	tightening torque	8 Nm