13 53 Fuel Injector Nozzles and Lines
WARNING: This page is about a different car, the 2013 BMW X5, 2012 BMW X5, and 2011 BMW X5. 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 | Nozzle holder combination (assembly) | M21/M51 | 80 Nm | ||
| 2AZ | Injection nozzle assembly in cylinder head | M21 | 40 Nm | ||
| M51/M41 | 65 Nm | ||||
| 3AZ | Fuel injection line (union nut) to injection pump and nozzle combination | M21/M51/M41 | 20 Nm | ||
| 4AZ | Feed line to fuel injection pipe | M43/M44/M43TU | 20 Nm | ||
| 5AZ | Injector nozzles - Combination in Cylinder head cover | M47 | M6 | 10 Nm | |
| Injector in cylinder head cover (Common Rail System) | M47TU/M47T2/M57/M57TU/M57T2 | M6 | Establish the screw connections alternately. | ||
| 1. Jointing torque | 1 Nm | ||||
| 2. Jointing torque | 4 Nm | ||||
| 3. Final torque | 9 Nm | ||||
| M67 | M8 | 30 Nm | |||
| 6AZ | Fuel injection line to injection pump (VP44) colour: yellow chromated up to 10/2000 | M47 | 30 Nm | ||
| Fuel injection line to injection pump (VP 44) Color: grey phosphate coating from 10/2000 |
M47 | 20 Nm | |||
| 7AZ | Fuel injection line to injector nozzle Color: yellow chromated up to 10/2000 |
M47 | 30 Nm | ||
| Fuel injection line to injector nozzle Color: grey phosphate coating from 10/2000 |
20 Nm | ||||
| 8AZ | Pressure lines (Common Rail System) |
M57/M47TU | |||
| Injector Color: yellow chromated up to 10/2000 |
30 Nm | ||||
| Injector Color: yellow chromated from 9/2002 |
M57TU | M12 x 1.5 | 23 Nm | ||
| Injector Color: grey phosphate coating from 10/2000 |
20 Nm | ||||
| Pressure accumulator, fuel distributor or Color: yellow chromated High pressure pump up to 10/2000 |
35 Nm | ||||
| Pressure accumulator, fuel distributor or High pressure pump Color: grey phosphate coated from 10/2000 |
20 Nm | ||||
| Pressure accumulator, fuel distributor or High pressure pump Color: yellow chromated from 9/2002 |
M57TU | M14 x 1.5 | 23 Nm | ||
| 8AZ | Pressure lines (Common Rail System) |
M67/M47T2/M57T2 | |||
| Injector | 23 Nm | ||||
| Pressure accumulator, fuel distributor or high pressure pump | 23 Nm | ||||
| 9AZ | Rail pressure sensor to pressure accumulator (Common Rail System) | M57 RDS2 | 38 Nm | ||
| M57 RDS4 | 38 Nm | ||||
| M47TU/M57TU/M47TU2/M57TU2 | 70 Nm | ||||
| 10AZ | Pressure regulator to high pressure pump (Common Rail System) | M57/M67 | 9 Nm | ||
| 11AZ | Pressure control valve to fuel distributor (Common Rail System) | E38/M67 | 5 Nm | ||
| E65/M67 | 80 Nm | ||||
| 12AZ | Rail pressure sensor to fuel distributor (Common Rail System) | E38/M67/RDS2 | 38 Nm | ||
| E38/M67/RDS4 | 38 Nm | ||||
| E65/M67 | 70 Nm | ||||
| 13AZ | Rail pressure control valve to pressure accumulator (Common Rail System) | M47TU/M57TU | 80 Nm | ||
| M47TU2/M57TU2 | 1) Tightening | 60 Nm | |||
| 2) Opening by | 90 ° | ||||
| 3) Final torque | 85 Nm | ||||
| 14AZ | Fuel return line to rail | M47TU/M57TU | Banjo bolt | 25 Nm | |
| 15AZ | Fuel line to fuel injection pipe | M56 | 26 Nm | ||
| 16AZ | Injector to fuel injection pipe | M56 | 26 Nm | ||
| 17AZ | Threaded support sleeve to rail | M57 | 60 Nm | ||