1151 ENGINE WATER PUMP (230i and 230i xDrive coupe/convertible)
1151 COOLANT PUMP - TIGHTENING TORQUE SPECIFICATION
| Type | Thread | Tightening specifications | Dimension | |
|---|---|---|---|---|
| 1AZ Coolant pump to component carrier | B42S2000/B46M0/00/B48M0/00 | M6 | If the coolant pump is reused APPLY LIQUID SEALING 2.2 . | 10 Nm |
| 2AZ Thermostat cover to component carrier | B42S2000/B46M0/00/B48M0/00 | M6 | 10 Nm | |
| 3AZ Coolant pump housing/component carrier to crankcase | B42S2000/B46M0/00/B48M0/00 | M8x35 | 19 Nm | |
| 4AZ Auxiliary coolant pump to engine block | B42S2000/B46M0/00/B48M0/00 | M8x22 | 19 Nm | |
| 5AZ Electric coolant pump to holder | B42S2000/B46M0/00/B48M0/00 | hexagon nut M6 | 8 Nm | |
| 6AZ Auxiliary coolant pump holder to cylinder head | B42S2000/B46M0/00/B48M0/00 | M6x16 | 8 Nm | |
| 7AZ Belt pulley to coolant pump | B42S2000/B46M0/00/B48M0/00 | M6x16 | If the screws are reused, clean the thread and coat with Loctite 243. | 8 Nm |
1151 TIGHTENING TORQUE OVERVIEW
| Component carrier to crankcase | ||
| M8 x 35 | Tightening torque | 19 Nm |