13 53 Fuel Injector Nozzles and Lines
WARNING: This page is about a different car, the 2016 BMW Z4, 2015 BMW Z4, and 2014 BMW Z4. However, it is still accessible from the selected car via links, so may be relevant.
TIGHTENING TORQUE SPECIFICATIONS - FUEL INJECTOR NOZZLES AND LINES
| Type | Thread | Tightening specifications | Dimension | |
|---|---|---|---|---|
| 1AZ Rail, high-pressure side, to cylinder head | N54/N54T | M7 x 16 | 13 ± 2 Nm | |
| 2AZ High pressure line to cylinder head | N54/N54T | M7 x 16 | 13 ± 2 Nm | |
| 3AZ High-pressure fuel sensor | N54/N54T | M10 | 30 Nm | |
| 4AZ Fuel low-pressure sensor | N54/N54T | M10 | 20 Nm | |
| 5AZ Hold-down device to cylinder head | N54/N54T | M7 x 20 | 13 ± 2 Nm | |
| 6AZ Feed line to high pressure pump | N54/N54T | M14 | Coat screw connection with transmission oil. | 30 Nm |
| 7AZ High pressure line to rail and high pressure pump | N54/N54T | M14 | Coat screw connection with transmission oil. | 30 ± 3 Nm |
| 8AZ High pressure lines to rail and injector | N54/N54T | M12 | Coat screw connection with transmission oil. | 23±3 Nm |
| 9AZ Fuel delivery line | N54/N54T | M8 x 17 | Replace screw. | |
| 1. Tightening | 10 Nm | |||
| 2. Torsion angle adjustment | 90° ± 15° | |||
| 10AZ Bracket, fuel line, to engine mounting bracket | N54/N54T | M6 x 12 | 8 Nm |