1165 TURBOCHARGER (230i, 230i xDrive)

1165 TIGHTENING TORQUE OVERVIEW

Adapter to exhaust turbocharger
M6 screw		Tightening torque	8 Nm
Blow-off valve to exhaust turbocharger
M6		tightening torque	9±1 Nm
Control rod for electric wastegate valve controller
M6 Always use a second open-end wrench (for counter support) to tighten the lock nut!		Tightening torque	6 ± 0.3 Nm
Electrical controller drive to exhaust turbocharger
Replace screws.	Tighten screws crosswise.	Tightening torque	3 ± 0.5 Nm
Exhaust turbocharger to cylinder head
M7 IMPORTANT: Observe TIGHTENING SEQUENCE .	Replace nuts.	1. Joining torque	10 Nm
		2. tightening torque	10 Nm
		3. Joining torque	16 Nm
		4. tightening torque	16 Nm
		5. Tightening torque	16 Nm
Exhaust turbocharger without an integral manifold on the cylinder head
M7 Replace nuts.	IMPORTANT: Observe TIGHTENING SEQUENCE .	1. Tightening torque	10 Nm
		2. Tightening torque	18 Nm
		3. Tightening torque	18 Nm
M7X30 Replace screws.	Observe tightening sequence.	1. Tightening torque	10 Nm
M7X30 Replace screws.	Observe tightening sequence.	2. Tightening torque	90°
Heat shield to cylinder head
M8 x 12		Tightening torque	19 Nm
Heat shield to trim strip
M6 x 12		Tightening torque	8 Nm
Trim strip at the cylinder head
M7		tightening torque	18 Nm