11 53 Thermostat and coolant lines
WARNING: This page is about a different car, the 2018 BMW 330i and 2017 BMW 330i. However, it is still accessible from the selected car via links, so may be relevant.
11 53 THERMOSTAT AND COOLANT LINES - TIGHTENING TORQUE SPECIFICATION
| Type | Thread | Tightening specifications | Dimension | |
|---|---|---|---|---|
| 1AZ Coolant line to exhaust turbocharger | B46M0/O0/B48M0/O0 | M6 | Replace O-ring. | 10 Nm |
| 2AZ Coolant line to crankcase | B46M0/O0/B48M0/O0 | M6 | Replace O-ring. | 10 Nm |
| 3AZ Heat exchange module to crankcase | B46M0/O0/B48M0/O0 | M6 | 8 Nm | |
| 4AZ Coolant return line to exhaust turbocharger | B46M0/O0/B48M0/O0 | M6x12 | 8 Nm | |
| 5AZ Connecting bracket to engine block | B46M0/O0/B48M0/O0 | M6x25 | 8 Nm |