Final answer:
Brake cylinders and pads should typically be inspected at least once a year or every 12,000 miles to ensure safety and reliability, but immediate inspections are required if there are any signs of brake issues.
Step-by-step explanation:
Hydraulic brakes function based on Pascal's principle, where a force applied to a fluid in a closed system will transmit that pressure equally in all directions.
Automotive brake systems apply this principle using a master cylinder connected to wheel cylinders or calipers in the case of disc brakes.
When a driver exerts force on the brake pedal, this force is amplified through a lever and the hydraulic system to apply the braking force evenly across the wheels. Brake cylinders and pads are critical components of this system and should be inspected by a mechanic regularly to ensure proper functioning and safety.
While the specific interval may vary depending on the vehicle manufacturer's recommendations, driving habits, and operating conditions, it's generally advised to have the brake cylinders and pads inspected at least once a year or every 12,000 miles.
However, if you notice any symptoms of brake problems, such as squealing noises, reduced braking efficiency, or a spongy pedal feel, it is important to get the brakes checked immediately regardless of the last inspection.