12 31 Alternator With Drive And Mounting Parts
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2013 BMW 128i, 2012 BMW 128i, 2011 BMW 128i, 2010 BMW 128i, and 2009 BMW 128i. However, it is still accessible from the selected car via links, so may be relevant.
ALTERNATOR WITH DRIVE AND MOUNTING PARTS - TIGHTENING TORQUE TABLE
| - | 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 |
ALTERNATOR WITH DRIVE AND MOUNTING PARTS - TIGHTENING TORQUE TABLE
| - | 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 |