34 21 Rear Brake Discs
WARNING: This page is about a different car, the 2005 BMW 645Ci and 2004 BMW 645Ci. However, it is still accessible from the selected car via links, so may be relevant.
REAR BRAKE DISCS SPECIFICATIONS
| Different thicknesses on brake linings | max. mm | 0.01 |
| Surface roughness of braking surfaces (precision-turned) | mm | 0.5 ... 3.5 |
| Brake disc diameter Models: 520i 525i 525d 530i 530d 630i | mm | 320 |
| Brake disc diameter Models: 545i 645Ci 535d 650 | mm | 345 |
| Wear warning from residual lining thickness | mm | 3.0 |
| Brake disk minimum thickness (MIN TH) stamped on brake disk body Models: 520i 525i 525d 530i 530d 630i | mm | 18.4 |
| Brake disk minimum thickness (MIN TH) stamped on brake disk body Models: 545i 645Ci 535 650i M6d | mm | 22.4 |
| Max. machining limit per friction ring side (M models must not be machined!) | mm | 0.8 |