11 12 Cylinder Head And Cylinder Head Cover
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.
CYLINDER HEAD AND CYLINDER HEAD COVER - TIGHTENING TORQUE
| Type | thread | Tightening Specification | |
|---|---|---|---|
| 11AZ Cylinder head cover | All | M6 | 10 Nm |
| All | M7 | 15 Nm | |
| M21 | M8 | 15 Nm | |
| 12AZ Oil trap to cylinder head cover | M21 | M8 | 17 Nm |
| 13AZ Timing case to cylinder head | All | M7 | 15 Nm |
| All | M8 | 20 Nm | |
| 14AZ Plug for oil channel (micro encapsulated) | M47 / M57 | M12 x 1.5 | 20 Nm |
| 15AZ Vent plugs to cylinder head (coolant) | M67 | 2 Nm |
CYLINDER HEAD AND CYLINDER HEAD COVER - TIGHTENING TORQUE
| Type | Thread | Description | Tightening Specification | |
|---|---|---|---|---|
| 1AZ ISA screws (cylinder head bolts) (10 x) Cylinder head to crankcase. |
N52K | M10 x 125 | Replace screws. Tighten screws from inside outwards. Jointing torque and angle of rotation must be observed without fail. |
|
| Jointing torque | 30 Nm | |||
| 1st angle of rotation | 90 ° | |||
| 2. Angle of rotation | 90 ° | |||
| 3. Angle of rotation | 45 ° | |||
| 2AZ ISA screws (cylinder head bolts) (1 x M9 x 95) (3 x M9 x 125) Cylinder head to crankcase. |
N52K | M9 | Replace screws. Jointing torque and angle of rotation must be observed without fail. |
|
| Jointing torque | 30 Nm | |||
| 1st angle of rotation | 90 ° | |||
| 2. Angle of rotation | omitted | |||
| 3. Angle of rotation | 45 ° | |||
| 3AZ Al screw (1 x) Cylinder head to crankcase. The end faces of the aluminum screw heads are painted blue. |
N52K | M9 x 30 | Replace screw. Thread repairs exclusively with aluminum Heli-coil threaded insert. Jointing torque and angle of rotation must be observed without fail. |
|
| Jointing torque | 10 Nm | |||
| Torque angle | 90 ° | |||
| 4AZ ASA screws (3 x) Cylinder head to crankcase. The end faces of the aluminum screw heads are painted blue. |
N52K | M9 x 70 | Replace screws. Thread repairs exclusively with aluminum Heli-coil threaded insert. Jointing torque and angle of rotation must be observed without fail. |
|
| Jointing torque | 10 Nm | |||
| Torque angle | 135 ° | |||
| 5AZ ASA screws (15 x M7 x 33.5 round) (1 x M7 x 33.5 oval) (1 x M7 x 35) (2 x M7 x 36) Hexagon screw (1 x M7 x 46) Studs (2 x M7 x 75) Cylinder head cover to cylinder head. |
N52K | M7 | 9 Nm | |
| 6AZ Fillister head screws (4 x) Ignition coil cover to cylinder head cover. |
N52K | M6 x 20 | 4 Nm | |
| 7AZ ISA screws (12 x) Bearing cap of eccentric shaft to cylinder head. |
N52K | M6 x 30.5 | 9 Nm | |
| 8AZ Seal plugs (3 x) Seal, oil channel, in cylinder head. |
N52K | M16 x 1.5 | Thread must be oiled. | 40 Nm |
| 9AZ Towing eye (1 x) Towing eye to cylinder head. |
N52K | M16 | Use towing eye exclusively with M16 thread. Use towing eye for engine transportation only. |
30 Nm |