12 31 Alternator with Drive and Mounting Parts
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2008 BMW Z4, 2007 BMW Z4, 2006 BMW Z4, 2006 BMW 330xi, and 2006 BMW 330i. However, it is still accessible from the selected car via links, so may be relevant.
ALTERNATOR WITH DRIVE AND MOUNTING PARTS TIGHTENING SPECIFICATION
| Type | Thread | 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 |
ALTERNATOR WITH DRIVE AND MOUNTING PARTS TIGHTENING SPECIFICATION
| 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 |