11 53 Coolant thermostat with connections
WARNING: This page is about a different car, the 2011 BMW Z4, 2010 BMW Z4, and 2009 BMW Z4. However, it is still accessible from the selected car via links, so may be relevant.
TIGHTENING TORQUE SPECIFICATION - 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 colour 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 |
20 Nm |
| Torque angle | 70 ° | ||||