Technician A says that disc brakes are self adjusting and the brake pedal height should not become lower as the disc brake pads wear. Technician B says that as the disc brake pads wear, the level of brake fluid in the master cylinder reservoir drops. Which technician is correct?

Question

Quizplus · Accepted Answer

Both technicians are correct. Disc brakes are self-adjusting, meaning the brake pedal height should remain consistent even as the pads wear. As the pads wear, the caliper pistons extend further to compensate, leading to a decrease in the brake fluid level in the master cylinder reservoir.

Technician a Says That Disc Brakes Are Self Adjusting and the Brake