34 31 Brake Master Cylinder
TIGHTENING TORQUES 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 |