A brake inspection helps identify wear, leaks, and other problems that can affect how your vehicle stops. The mechanic may inspect visible parts, measure component wear, and ask how the brakes have been performing. The exact checks depend on your vehicle and what symptoms you report. Knowing what may be examined can help you follow the findings, ask useful questions, and understand whether the next step is routine maintenance or a closer diagnosis.
Brake Pads and Shoes
The mechanic may check the thickness and condition of the brake pads at each wheel. Pads that are wearing unevenly, cracked, contaminated, or close to their vehicle-specific service limit may need attention. If your vehicle has drum brakes, the mechanic can inspect the brake shoes and related hardware. Some vehicles include wear indicators, which may make a squealing sound as pads become thin.
Pad wear can vary from side to side or between the front and rear brakes. The mechanic may look for uneven wear that could point to a sticking caliper, a restricted hose, or another issue. Ask what was measured and whether the parts need replacement now or should be monitored. Follow the vehicle manufacturer’s specifications rather than relying on a single universal thickness guideline.
Rotors and Drums
A mechanic may examine rotors for deep grooves, rust, cracks, discoloration, or signs of overheating. They can measure rotor thickness and compare it with the minimum specification for your vehicle. A rotor that is too thin cannot safely be machined, and replacement may be necessary. Drum brakes may also be checked for surface damage and wear.
If you feel vibration or pulsing when braking, the mechanic may check rotor or drum runout and look for uneven contact. Those symptoms can have more than one cause, so the inspection may include the wheel, hub, and suspension. Ask the mechanic to explain which measurement or visible condition supports the recommended repair.
Fluid, Lines, and Hoses
Brake fluid transfers force through the hydraulic system. The mechanic may check its level and appearance, inspect the reservoir and cap, and look for contamination or moisture according to the vehicle’s service requirements. A low level can indicate worn brake components or a leak, so simply topping it up may not address the cause. Fluid replacement intervals vary by vehicle; check the owner’s manual.
The inspection may include metal brake lines, flexible hoses, fittings, and visible connections. A mechanic looks for leaks, corrosion, cracks, swelling, or damage that could affect fluid pressure. They may also check the master cylinder and, where accessible, other hydraulic components. If the brake pedal feels soft, sinks, or requires extra pressure, mention when it happens and whether the condition is getting worse.
Calipers and Other Components
Calipers press the pads against the rotors, so a mechanic may check for leaks, corrosion, damaged boots, and signs that a caliper is sticking. They may inspect mounting hardware and confirm that pads can move as intended. For vehicles with drum brakes, they may examine wheel cylinders, springs, adjusters, and other hardware. The inspection can also include parking brake operation.
The mechanic may ask about noises, pulling to one side, a warning light, or changes in pedal feel. They may check the tires and wheel area for clues, then recommend additional testing if a visual inspection does not explain the symptoms. Before approving repairs, ask which findings are safety-related, what can wait, and whether the proposed work addresses the cause rather than only a symptom.
A thorough brake inspection looks beyond pad thickness to assess rotors, fluid, hydraulic parts, and the way the system operates. Request a clear explanation of measurements, visible damage, and recommended next steps. If you notice a sudden change in braking, avoid unnecessary driving and arrange a professional assessment. Perth Brake Assist can discuss inspection options for drivers in Perth.