Operation CHARM: Car repair manuals for everyone.

Disc Brake System: Description and Operation


Front Wheel Brake





4-piston fixed caliper with different piston diameters. Upper piston- 42 mm diameter Lower piston 38 mm diameter

This configuration is used to achieve even wear over the entire brake pad surface.

Rear Wheel Brake





Fixed caliper.


Parking Brake
Foot pedal parking brake as on model 124.