13 53 Fuel Injection Nozzles and Pipes
WARNING: This page is about a different car, the 2013 BMW Z4, 2012 BMW Z4, 2011 BMW Z4, 2010 BMW Z4, and 2009 BMW Z4. However, it is still accessible from the selected car via links, so may be relevant.
TIGHTENING TORQUE SPECIFICATION - FUEL INJECTION NOZZLES AND PIPES
| Type | Thread | Tightening specification | Measure | |
|---|---|---|---|---|
| 1AZ Rail, high-pressure side, to cylinder head | N54 | M7 x 16 | 13 ± 2 Nm | |
| 2AZ High-pressure line to cylinder head | N54 | M7 x 16 | 13 ± 2 Nm | |
| 3AZ High-pressure fuel sensor | N54 | M10 | 30 Nm | |
| 4AZ Low pressure fuel sensor | N54 | M10 | 20 Nm | |
| 5AZ Hold-down device to cylinder head | N54 | M7 x 20 | 13 ± 2 Nm | |
| 6AZ Feed line to high-pressure pump | N54 | M14 | Coat screw connection with transmission oil | 30 Nm |
| 7AZ High-pressure line to rail and high-pressure pump | N54 | M14 | Coat screw connection with transmission oil | 30 ± 3 Nm |
| 8AZ High-pressure lines to rail and injector | N54 | M12 | Coat screw connection with transmission oil | 23±3 Nm |
| 9AZ Fuel delivery line | N54 | M8 x 17 | Replace screw | |
| 1. Tightening | 10 Nm | |||
| 2. Angle-of-rotation tightening | 90° ± 15° | |||
| 10AZ Bracket, fuel line, to engine support frame | N54 | M6 x 12 | 8 Nm |