Rear Brake, BMW, F48

34 21 REAR BRAKE DISCS F48 - TECHNICAL DATA SPECIFICATIONS

IMPORTANT: Installation of new brake pads is approved only provided that the brake disc thickness exceeds the specified dimension (see table). Brake discs must be replaced when they reach the nominal thickness (see table) minus 2.4 mm! (Not applicable to perforated brake discs and M vehicles)Applies only to M vehicles and perforated ventilated brake discs:The brake discs must be replaced once they wear to the nominal specified thickness (see table) minus 1.6 mm!Depending 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.
Different thicknesses on brake linings	Max. mm	0.01
Nominal size (diameter x thickness)	mm	300x20
Minimum brake disc thickness stamped on brake disc chamber	mm	18.4
Nominal size (diameter x thickness)	mm	280x10
Minimum brake disc thickness stamped on brake disc chamber	mm	8.4
Pad wear warning from remaining brake pad thickness	mm	3.7