12 31 Alternator with Drive and Mounting Parts
WARNING: This page is about a different car, the 2011 BMW M3, 2010 BMW M3, 2009 BMW M3, and 2008 BMW M3. 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 | ||