34 21 Rear Brake Discs, Carbon ceramic
WARNING: This page is about a different variant/trim than selected.
REAR BRAKE DISCS SPECIFICATION
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IMPORTANT:
New brake pads may only be fitted 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 0.05 mm Wear of brake discs can be evaluated via the wear indicators (optical identification of oxidative wear). See EVALUATION OF WEAR The brake discs must always be assigned by way of the relevant vehicle identification number and the BMW Electronic Parts Catalogue! |
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| Maximum permissible weight loss per brake disc | gram | 70 |
| Different thicknesses on brake linings | Max. mm | 0.01 |
| Max. machining dimension per friction ring side | Carbon ceramic brake discs must not be machined | |
| Nominal size (diameter x thickness) | mm | 396 x 26 |
| Minimum brake disc thickness (MIN TH) on brake disc chamber | mm | 25.95 |
| Pad wear warning from remaining brake pad thickness | mm | 3.7 |