34 31 Brake Master Cylinder
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2008 BMW 750i, 2008 BMW 750Li, 2007 BMW 750i, 2007 BMW 750Li, and 2006 BMW 750i. However, it is still accessible from the selected car via links, so may be relevant.
TIGHTENING TORQUE SPECIFICATION - BRAKE MASTER CYLINDER
| - | Type | Thread | Tightening specification | Measure |
|---|---|---|---|---|
| 1AZ Brake master cylinder to brake booster (vacuum) | E30 | - | - | 24 Nm |
| - | E32 | - | Replace self-locking nut. | 21 Nm |
| - | E28/E34/E36/E46/E38/E39/E52/E53/E85/E86/E83 | - | Replace self-locking nut. | 26 Nm |
| - | E65/E66/E60/E61/E63/E64 | - | Replace self-locking nut. Retighten after 30 minutes. | 26 Nm |
| 2AZ Brake master cylinder to brake booster hydraulic | E31/E32/E34/E24 | - | Replace hexagon socket head screw with a hexagon screw, refer to BMW Parts Service | 28 Nm |
| 3AZ Expansion tank to brake master cylinder | E36/E46/E85/E86 | - | - | 3.5 Nm |
| - | E83/E60/E61/E63/E64 | - | - | 8 ±2 Nm |