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Home >> BMW >> 2015 >> Z4 sDrive28i, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 27 (Fuel System - Tightening Torques (N54) -- Z4_E89) >> Fuel Injector Nozzles And Lines >> 13 53 Fuel Injector Nozzles and Lines

13 53 Fuel Injector Nozzles and Lines

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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