11 53 Thermostat and Connections
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 - THERMOSTAT AND CONNECTIONS
| Type | Thread | Tightening specifications | Dimension | |
|---|---|---|---|---|
| 1AZ Thermostat housing to coolant pump. | N54/N54T | M6 x 25 | 8 Nm | |
| 2AZ Thermostat housing to coolant pump. | N54N54T | M8 x 16 | 20 Nm | |
| 3AZ ASA screw Assembly, feed line to crankcase upper part |
N54/N54T | M6 x 20 | 9 Nm | |
| 4AZ Feed line to coolant pump. | N54/N54T | L42-48 | Hose clamp | 3 Nm |
| 5AZ Feed line to thermostat | N54/N54T | Hose clamp | 3 Nm | |
| 6AZ Coolant hose to cylinder head | N54/N54T | M6 x 23 | 9 Nm | |
| 7AZ ISA screw Coolant feed line to exhaust turbocharger |
N54/N54T | M6 x 12 | 8 Nm | |
| 8AZ ISA screw Coolant return line to exhaust turbocharger |
N54/N54T | M6 x 12 | 8 Nm | |
| 9AZ ISA screw Coolant return line to crankcase upper part |
N54/N54T | M6 x 16 | 8 Nm | |
| 10AZ ISA screw Coolant feed lines to assembly, feed line |
N54/N54T | M6 x 16 | 8 Nm | |
| 11AZ EJOT screw Housing, coolant thermostat, to holder. |
N54/N54T | M5 x 21.8 | 9 Nm | |
| 12AZ Hose clamp Coolant hose between coolant thermostat and radiator. |
N54/N54T | L42-48 | 3 Nm |