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Rear Brakes

F82 COUPE: 

REAR BRAKE DISCS F82 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 fitted
The 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 370x24
Minimum brake disc thickness stamped on brake disc mm chamber   22.4
Pad wear warning from remaining brake pad thickness mm 3.7
BRAKE PERFORMANCE TESTING SPECIFICATIONS

Model series F82
Base model M4
Remarks Coupe
Approved gross vehicle weight (kg) 2040 kg
Maximum brake pedal force to achieve a deceleration rate of 58 % in (N) 200 N
Minimum front axle brake force ratio in % 49.7 %
Minimum proportion of rear axle braking force in % 22.7 %
Test area for brake pedal force (N) 70 - 150 N

F83 CONVERTIBLE: 

34 21 REAR BRAKE DISCS F83 - TECHNICAL DATA SPECIFICATION

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 370x24
Minimum brake disc thickness stamped on brake disc chamber mm 22.4
Pad wear warning from remaining brake pad thickness mm 3.7
34 00 BRAKING, TEST, VENTILATION - TECHNICAL DATA SPECIFICATION

Model series F83
Base model M4
Remarks Convertible
Approved gross vehicle weight (kg) 2250 kg
Maximum brake pedal force to achieve a deceleration rate of 58 % in (N) 200 N
Minimum front axle brake force ratio in % 49.7 %
Minimum proportion of rear axle braking force in % 22.7 %
Test area for brake pedal force (N) 70 - 150N