34 21 Rear Brake Discs
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.
REAR BRAKE DISCS SPECIFICATION
| Attention! New brake pads may only be installed if the brake disc thickness is greater than or equal to the minimum brake disc thickness (MIN TH) (not including M vehicles). In case of M vehicle and perforated brake discs new brake pads may only be installed if the brake disc thickness is greater than the minimum brake disc thickness (MIN TH). Minimum brake disc thickness during general inspection (GI): Nominal size thickness minus 2.4 mm (Not applicable to perforated brake discs and M vehicles) M vehicles and perforated brake discs: Nominal size thickness minus 1.6 mm Depending on:
different brake discs can be fitted The brake discs must always be assigned by way of the relevant vehicle identification number and the Electronic Parts Catalogue (ETK)! |
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| Different thicknesses on brake linings | Max. mm | 0.01 |
| Max. machining limit per friction ring side (M vehicles and perforated brake discs must not be machined). | mm | 0.8 |
| Nominal size (diameter x thickness) | mm | 324x22 |
| Brake disc minimum thickness (MIN TH) stamped on brake disc body | mm | 20.4 |
| Nominal size (diameter x thickness) | mm | 300x20 |
| Brake disc minimum thickness (MIN TH) stamped on brake disc body | mm | 18.4 |
| Wear warning from residual lining thickness | mm | 3.7 |