Brake System
The braking system features disc brake and calipers on all four wheels. The hydraulic system has a dual circuit that is split diagonally. A brake booster is fitted to all models. The system incorporates Anti-Lock Brakes (ABS) as a standard with its sub systems of Electronic Brake Force Distribution (EBV), Cornering Brake Control (CBC) and Engine Torque Feedback Control (MSR).
Purpose of the System
The Brake System provides the stopping power for the MINI and a cable operated parking brake. System components include
- Brake Booster
- Master Cylinder with Reservoir
- Front Wheel Brake Assemblies
- Rear Wheel Brake Assemblies
- Parking Brake
Brake Booster
All cars are fitted with a 10" diameter vacuum brake booster. The booster is vented through an aluminum baffle plate, fitted between the booster and the bulkhead.
Master Cylinder with Reservoir
The tandem master cylinder is available in two versions one for ABS/ASC and one for DSC, both have a piston diameter of 22.2 mm. The visible difference between the two units is the single sensor fitted to the underside of the master cylinder on the DSC unit. This sensor informs the DSC control unit whether the driver has applied the brakes during DSC intervention.
Scheme 269
Scheme 270
The reservoir is secured to the master cylinder by a bolt connecting two mounting tabs. A sensor monitors fluid level, and supplies information to the ABS/DSC control unit. Two "O" rings seal the unit to the master cylinder. The reservoir also supplies fluid to the clutch hydraulics on manual gearbox models. There is an integral filter in the filler neck to prevent dirt contamination of the fluid.