11 53 Thermostat and Connections
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2015 BMW 740i, 2015 BMW 740Li xDrive, 2015 BMW 740Li, 2014 BMW 740i, and 2014 BMW 740Li xDrive. However, it is still accessible from the selected car via links, so may be relevant.
TIGHTENING TORQUE SPECIFICATIONS - THERMOSTAT AND CONNECTIONS
| Type | Thread | Tightening specification | Measure | |
|---|---|---|---|---|
| 1AZ Thermostat housing to coolant pump. | N55 | M6 x 25 | 8 Nm | |
| 2AZ Thermostat housing to holder. | N55 | 9 Nm | ||
| 3AZ Holder to radiator | N55 | Self-tapping screw | 3 Nm | |
| 4AZ Feed line to crankcase. | N55 | M6x16 | 8.5 Nm | |
| 5AZ Feed line to coolant pump. | N55 | L42-48 | Hose clamp | 3 Nm |
| 6AZ Oil-to-water heat exchanger ( WWT) feed line. | N55 | L18-24 | Hose clamp | 3 Nm |
| 7AZ Coolant line to cylinder head (short-circuit line). | N55 | M6 x 23 | 8.5 Nm | |
| 8AZ Coolant line to thermostat. | N55 | Hose clamp with corrugated spring | 3 Nm | |
| 9AZ Coolant hose from thermostat to coolant pump | N55 | L42-48 | 3 Nm | |
| 10AZ Radiator supply and drain line to exhaust turbocharger | N55 | M6 x 16 | 8 Nm | |
| 11AZ Coolant return line to crankcase. | N55 | M6 x 16 | 8 Nm |