11 11 Crankcase

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2013 BMW 128i, 2012 BMW 128i, 2011 BMW 128i, 2010 BMW 128i, and 2009 BMW 128i. However, it is still accessible from the selected car via links, so may be relevant.

CRANKCASE - TIGHTENING TORQUE

	Type	Thread	Description	Tightening Specification
1AZ Hexagon screws (14 x) Bedplate to crankcase.	N52K	M10 x 100	Replace screws. Jointing torque and angle of rotation must be observed without fail.
			Jointing torque	20 Nm
			Torque angle	70 °
2AZ ASA screws (25 x) Bedplate to crankcase. The end faces of the aluminum screw heads are painted blue.	N52K	M10 x 27	Replace screws. Thread repairs exclusively with aluminum Heli-coil threaded insert. Jointing torque and angle of rotation must be observed without fail.
			Jointing torque	15 Nm
			Torque angle	90 °
3AZ ASA screws (4 x) Bedplate to crankcase. The end faces of the aluminum screw heads are painted blue.	N52K	M8 x 37	Replace screws. Thread repairs exclusively with aluminum Heli-coil threaded insert. Jointing torque and angle of rotation must be observed without fail.
			Jointing torque	8 Nm
			Torque angle	90 °
4AZ ASA screws (2 x) Bedplate to crankcase. The end faces of the aluminum screw heads are painted blue.	N52K	M10 x 41	Replace screws. Thread repairs exclusively with aluminum Heli-coil threaded insert. Jointing torque and angle of rotation must be observed without fail.
			Jointing torque	15 Nm
			Torque angle	90 °
5AZ Oil spray nozzles (6 x) Oil spray nozzles in crankcase.	N52K	M8 x 1		12 Nm
6AZ Plug (1 x) Coolant drain to crankcase. The end faces of the aluminum screw heads are painted blue.	N52K	M14 x 1.5	Replace screw and sealing ring. Thread repairs are not permitted!	50 Nm
7AZ Plug (1 x) Assembly opening to crankcase. The end faces of the aluminum screw heads are painted blue.	N52K	M22 x 1.5	Replace screw. Thread repairs are not permitted!	50 Nm
8AZ Plug (1 x) Assembly opening to bedplate. The end faces of the aluminum screw heads are painted blue.	N52K	M16 x 1.5	Replace screw. Thread repairs are not permitted!	27 Nm