13 53 Fuel Injection Nozzles And Pipes
WARNING: This page is about a different car, the 2010 BMW 135i, 2009 BMW 135i, and 2008 BMW 135i. However, it is still accessible from the selected car via links, so may be relevant.
FUEL INJECTION NOZZLES AND PIPES - TORQUES SPECIFICATION
| Type | Thread | Description | Tightening Specification | |
|---|---|---|---|---|
| 1AZ Rail, high-pressure side, to cylinder head | N54, N53 | M7 x 16 | 13 ± 2 Nm | |
| 2AZ High-pressure line to cylinder head | N54, N53 | M7 x 16 | 13 ± 2 Nm | |
| 3AZ High-pressure fuel sensor | N54, N53 | M10 | 30 - 5 Nm | |
| 4AZ Low-pressure fuel sensor | N54, N53 | M10 | 20 - 3 Nm | |
| 5AZ Holding-down element to cylinder head | N54, N53 | M7 x 20 | 13 ± 2 Nm | |
| 6AZ Feed line to high-pressure pump | N54, N53 | M14 | Coat screw connection with transmission oil | 30 ± 3 Nm |
| 7AZ High-pressure line to rail and high-pressure pump | N54, N53 | M14 | Coat screw connection with transmission oil | 30 ± 3 Nm |
| 8AZ High-pressure lines to rail and injector | N54, N53 | M12 | Coat screw connection with transmission oil | 23 ± 3 Nm |
| 9AZ Fuel feed line | N54, N53 | 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, N53 | M6 x 12 | 8 Nm |