12 31 Alternator with Drive and Mounting Parts
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2011 BMW 328xi, 2011 BMW 328i, 2010 BMW 328xi, 2010 BMW 328i, and 2009 BMW 328xi. However, it is still accessible from the selected car via links, so may be relevant.
TIGHTENING TORQUE SPECIFICATION - ALTERNATOR WITH DRIVE AND MOUNTING PARTS
| Type | Thread | Tightening specification | Measure | ||
|---|---|---|---|---|---|
| 1AZ | Wires to alternator | ||||
| Terminal D+ | M10/M20 | 5 Nm | |||
| All/others | M6 | 7 Nm | |||
| Terminal B+ | S38/B38 | 8 Nm | |||
| All/others | M8 | 13 Nm | |||
| 2AZ | Pulley | All | 45 Nm | ||
| 3AZ | Pulley (ribbed drive belt) | Alternator with cooling jacket | 80 Nm | ||
| all others | 70 Nm | ||||
| N42, N46 Valeo | 75 Nm | ||||
| N42, N46 Bosch | 65 Nm | ||||
| 4AZ | Rear holder | All | 3.5 Nm | ||
| 5AZ | Fillister head screw for wire holder | All | 3.5 Nm | ||
| 6AZ | Alternator on bearing block | M40/M42/M43/M44 | 43 Nm | ||
| 7AZ | Alternator to crankcase | N42, N46, N62 | M8 | 21 Nm | |
| 8AZ | Belt pulley (ribbed V-belt) with freewheel (Ina) fitted to Bosch and Valeo alternators | N42, N43 | 80 Nm | ||
TIGHTENING TORQUE SPECIFICATION - ALTERNATOR WITH DRIVE AND MOUNTING PARTS
| Type | Thread | Tightening specification | Measure | ||
|---|---|---|---|---|---|
| 1AZ | Wires to alternator | N52/N52K/N51/N53 | M8 | 19 Nm | |
| 2AZ | Alternator to crankcase | N52/N52K/N51/N53 | M8x82 | Replace screws | |
| Jointing torque | 10 Nm | ||||
| Torque angle | 180 ° | ||||
| 3AZ | Belt pulley (ribbed V-belt) with freewheel (Ina) fitted to Bosch and Valeo alternators | N52, | 80 Nm | ||