11 53 Coolant thermostat with connections
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 BMW 328xi, 2012 BMW 328i, 2011 BMW 328xi, 2011 BMW 328i, and 2010 BMW 328xi. However, it is still accessible from the selected car via links, so may be relevant.
TIGHTENING TORQUE SPECIFICATIONS - COOLANT THERMOSTAT WITH CONNECTIONS
| Type | Thread | Tightening specification | Measure | |
|---|---|---|---|---|
| 1AZ Hexagon screws Coolant thermostat to electric water pump. |
N52K | M6 x 25 | 9 Nm | |
| 2AZ ASA screws Feed line (from electric water pump) to crankcase. |
N52K | M6 x 16 | Replace sealing ring and seal. | 9 Nm |
| 3AZ Hose clamp Feed line (from crankcase) to electric water pump. |
N52K | L42-48 | 3 Nm | |
| 4AZ Hose clamps Coolant hose between oil-water heat exchanger and feed line. |
N52K | L18-24 | 3 Nm | |
| 5AZ Hose clamps Coolant hose between coolant thermostat and electric water pump. |
N52K | L42-48 | 3 Nm | |
| 6AZ Hose clamp Coolant hose (from cylinder head) to coolant thermostat. |
N52K | L23-35 | 3 Nm | |
| 7AZ Hexagon screws Coolant hose (from coolant thermostat) to cylinder head. |
N52K | M6 x 25 | 9 Nm | |
| 8AZ ASA screw Spacer to cylinder head. |
N52K | M6 x 12 | 8 Nm | |
| 9AZ ASA screws Dual bracket to crankcase. Aluminium screws/bolts are permitted with and without color coding (blue). |
N52K | M6 x 16 | Replace screws. Thread repairs exclusively with aluminium Helicoil threaded insert. Jointing torque and angle of rotation must be observed without fail. Jointing torque Torque angle |
4 Nm 45 ° |