Observe sequence for tightening cylinder head bolts without fail
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 BMW 328xi, 2012 BMW 328i, 2011 BMW 328xi, 2011 BMW 328i, and 2010 BMW 328xi. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT:
The 2nd torsion angle relates only to cylinder head bolts 1 to 10.
Installation:
- Jointing torque:
All cylinder head bolts 1 to 14 to 30 Nm
- 1st angle of rotation:
All cylinder head bolts 1 to 14 to 90°
- 2nd angle of rotation:
Only cylinder head bolts 1 to 10 to 90°
- 3rd angle of rotation:
All cylinder head bolts 1 to 14 to 45°
Insert bolts (1).
Tightening torque 11 12 4AZ .
IMPORTANT:
Secure bolt (2) with a gripper against falling down.
Insert bolt (2).
Tightening torque 11 12 3AZ .
Installation:
Replace aluminum screws.
Assemble engine.