11 31 Camshaft

WARNING: This page does not describe the selected car, but rather 14 other vehicles, including the 2013 BMW 328xi, 2013 BMW 328i, 2012 BMW 328xi, 2012 BMW 328i, and 2011 BMW 328xi. However, it is still accessible from the selected car via links, so may be relevant.

TIGHTENING TORQUES - CAMSHAFT [N51]

	Type	Thread	Tightening specification	Measure
1AZ Upper and lower bearing strip of camshaft (steel screw 10.9)	N51	M7 x 70	Insert screws dry.
			Jointing torque	8 Nm
			Torque angle	80 °
2AZ Chain drive module to cylinder head	N51	M6 x 35		8 Nm
3AZ Guide rail to crankcase	N51	M8		20 Nm
4AZ Guide rail to cylinder head	N51	M7		14 Nm
5AZ Chain tensioner to cylinder head	N51	M22 x 1.5	Replace sealing ring	55 Nm
6AZ Screw plug in cylinder head	N54	M18 x 1.5		25 Nm

TIGHTENING TORQUES - CAMSHAFT [N52K]

	Type	Thread	Tightening specification	Measure
1AZ ASA screws (15 x) Upper and lower bearing banks of exhaust camshaft to cylinder head.	N52K	M7 x 70	Insert screws dry. Tighten screws from inside outwards. Jointing torque and angle of rotation must be observed without fail.
			Jointing torque	8 Nm
			Torque angle	60 °
2AZ ISA screws (14 x) Bearing cap of inlet camshaft to cylinder head.	N52K	M6 x 30.5		9 Nm
3AZ ASA screws (2 x) Timing chain module to cylinder head.	N52K	M6 x 35		9 Nm
4AZ Bearing pin (1 x) Timing chain module to crankcase.	N52K	M8		20 Nm
5AZ Bearing pin (1 x) Timing chain module to cylinder head.	N52K	M7		14 Nm
6AZ Chain tensioner (1 x) Chain tensioner to cylinder head.	N52K	M22 x 1.5	Replace sealing ring.	55 Nm
7AZ Plug (1 x) Assembly opening to cylinder head.	N52K	M18 x 1.5		25 Nm