13 53 Fuel Injector Nozzles and Lines
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2017 BMW X3, 2016 BMW X3, 2015 BMW X3, 2014 BMW X3, and 2013 BMW X3. However, it is still accessible from the selected car via links, so may be relevant.
TIGHTENING TORQUE SPECIFICATION - FUEL INJECTOR NOZZLES AND LINES
| Type | Thread | Tightening specifications | Dimension | ||
|---|---|---|---|---|---|
| 1AZ | Fuel high-pressure sensor | N20/N26 | Oil threads and pins | 30-5 Nm | |
| 2AZ | Feed line to high pressure pump | N20/N26 | M14 | Lubricate outer threads. | 30±3 Nm |
| 3AZ | Feed line to cylinder head | N20/N26 | M7 x 18 | 13±3 Nm | |
| 4AZ | Rail to cylinder head | N20/N26 | K7 x 30 | 7±1 Nm | |
| 5AZ | Hold-down device to cylinder head | N20/N26 | M7 x 90 | Hexagon screw | 13±2 Nm |
| M7 x 90 | Hexagon screw with ground connection | 13±2 Nm | |||
| 6AZ | High pressure lines to injectors | N20/N26 | M12 | Lubricate outer threads. | 23±3 Nm |
| 7AZ | High pressure line to rail and high pressure pump | N20/N26 | M14 | Lubricate outer threads. | 30±3 Nm |
| 8AZ | Special tool 13 0 320 on injector shaft | N20/N26 | M6 | 8 Nm | |