34 11 Front Brake

FRONT BRAKE SPECIFICATION

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 2.4 mm(Not applicable to perforated brake discs)Perforated brake discs:Nominal size thickness minus 1.6 mmDepending on: Engine type Transmission version Equipment specification (e.g. maximum load increase, chassis official-use, national version, etc.) different brake discs can be fittedThe brake discs must always be assigned by way of the relevant vehicle identification number and the BMW/MINI parts catalogue.
Different thicknesses on brake linings	Max. mm	0.01
Surface roughness of braking surfaces (precision-turned)	Ra μ	0.5... 3.5
Max. machining dimension per friction ring side (perforated brake discs must not be machined). Brake disc minimum thickness (MIN TH) must not be undershot.	mm	0.8
Nominal size (diameter x thickness)	mm	316x22
Nominal size (diameter x thickness)	mm	294x22
Nominal size (diameter x thickness)	mm	280x22
Brake disk minimum thickness (MIN TH) stamped on brake disk body	mm	20.4
Wear warning from residual lining thickness	mm	3.7