11 65 Turbocharger and Control
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 - TURBOCHARGER AND CONTROL
| Type | Thread | Tightening specifications | Dimension | |
|---|---|---|---|---|
| 1AZ Flange nut (with internal serrations) Exhaust turbocharger to cylinder head | N54/N54T | M7 | Replace flange nut. | 20 Nm |
| 2AZ ASA screw Heat shield/retaining plate to crankcase upper part |
N54/N54T | M6 x 16 | 8 Nm | |
| 3AZ ASA screw Holder EPPC to cylinder head |
N54/N54T | M6 x 20 | 9 Nm | |
| 4AZ Bracket, air duct, compressor 2, to cylinder head | N54/N54T | M6 x 15 | 9 Nm | |
| 5AZ Vacuum reservoir to bracket for vacuum reservoir | N54/N54T | M8 | 20 Nm | |
| 6AZ Bracket, vacuum reservoir, to body | N54/N54T | M6 x 14 | 5 Nm | |
| 7AZ Bracket to engine longitudinal member | N54/N54T | M6 | 5 Nm | |
| 8AZ EPPC to bracket, EPPC, with heat shield | N54/N54T | M6 | 5 Nm | |
| 9AZ Hexagon nut Vacuum unit (wastegate valve) to bracket | N54/N54T | M6 | 8 Nm | |
| 10AZ Lock nut to vacuum unit (wastegate valve) linkage | N54/N54T | M6 | 7 Nm | |
| 11AZ Hexagon screw Bracket, vacuum unit (wastegate valve), to turbocharger |
N54/N54T | M8 | 20 Nm | |
| 12AZ Band clamp Charge-air duct to turbocharger. |
N54/N54T | M6 | Replace band clamp. | 3.5 Nm |