11 12 Cylinder head with cover (1AZ-12AZ) [N51]
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 - CYLINDER HEAD WITH COVER
| Type | Thread | Tightening specification | Measure | |
|---|---|---|---|---|
| 1AZ Cylinder head bolts | N51 | M10 x 125 | Replace screws | |
| Jointing torque | 30 Nm | |||
| 1st angle of rotation | 90 ° | |||
| 2. Angle of rotation | 90 ° | |||
| 3. Angle of rotation | 45 ° | |||
| 2AZ Cylinder head bolts | N51 | M9 x 95 M9 x 125 | Replace screws | |
| Jointing torque | 30 Nm | |||
| 1st angle of rotation | 90 ° | |||
| 2. Angle of rotation | omitted | |||
| 3. Angle of rotation | 45 ° | |||
| 3AZ Cylinder head bolts | N51 | M9 x 30 | Replace screws | |
| Jointing torque | 30 Nm | |||
| 1st angle of rotation | 90 ° | |||
| 4AZ Cylinder head bolts | N51 | M9 x 70 | Replace screws | |
| Jointing torque | 10 Nm | |||
| 1st angle of rotation | 135 ° | |||
| 5AZ Lifting lug to cylinder head | N51 | M8 x 20 | 19 Nm | |
| 6AZ Ignition coil cover to cylinder head cover | N51 | M6 x 20 | 8 Nm | |
| 7AZ Bearing strips to cylinder head | N51 | M7 x 70 | ||
| Jointing torque | 8 Nm | |||
| 1st angle of rotation | 60 ° | |||
| 8AZ E-engine to cylinder head cover | N51 | M7 x 70 | ||
| Jointing torque | 4 Nm | |||
| 1st angle of rotation | 90 ° | |||
| 9AZ Cylinder head cover to cylinder head | N51 | M7 M7 x 46 M7 x 36 | 9 Nm | |
| 10AZ Camshaft bearing cap to cylinder head | N51 | M6 x 30 | 9 Nm | |
| 11AZ Towing lug to cylinder head | N51 | 30 Nm | ||
| 12AZ Plug, SLS channel | N51 | M20 x 1.5 | Plug | 80 Nm |