13 53 Fuel Injector Nozzles and Lines
WARNING: This page does not describe the selected car, but rather 33 other vehicles, including the 2018 BMW M6, 2018 BMW 650i xDrive, 2018 BMW 650i, 2018 BMW 640i xDrive, and 2018 BMW 640i. 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 | High-pressure rail to cylinder head | S63 B44 T 0 | M6 | 10 Nm | |
| 2AZ | High pressure rail to injector | S63 B44 T 0 | M12 | Initial torque | 10 Nm |
| Final torque (Retorque twice) | 23 Nm | ||||
| 3AZ | High pressure rail to high pressure pump | S63 B44 T 0 | M14 | Initial torque | 10 Nm |
| Final torque (Retorque twice) | 30 Nm | ||||
| 4AZ | Feed line to high pressure pump | S63 B44 T 0 | M14 | Initial torque | 10 Nm |
| Final torque (Retorque twice) | 30 Nm | ||||
| 5AZ | Holding-down element to cylinder head for injection nozzles | S63 B44 T 0 | M7 | 13 ± 2 Nm | |
| 6AZ | Feed line to cylinder head cover | S63 B44 T 0 | M6 | 10 Nm | |
| 7AZ | Retaining clips to holder | S63 B44 T 0 | M5 | 6 Nm | |
| 8AZ | High pressure sensor to rail | S63 B44 T 0 | 30 Nm | ||
| 9AZ | Special tool 2 249 115 to cylinder head cover | S63 B44 T 0 | M7 | 13 Nm | |
| M6 | 10 Nm | ||||