Checking your brakes can go a long way toward keeping you safe and improving the longevity of your vehicle. Here’s how to check one of your car’s most important safety systems.Modern vehicles may be complicated, but there are still several basic things every car owner can do to make sure his or her ride is running and stopping properly, like adjusting fluids and checking brakes.
Checking Brakes: Step-by-Step Instructions
According to the experts at NAPA Canada, here’s how. Note: It may be helpful to check your vehicle’s owner manual to see if it offers any specific information on brake maintenance, or you may want to consult a suitable service manual.
How to Perform a System Check
Brake fluid levels: Before you begin, make sure your car is on a level surface. The brake fluid level should fall between the lines marked “min” and “max.” If you need to add brake fluid, use the recommended fluid from a sealed container and follow the procedure in your owner’s manual.
Brake fluid condition: Because it absorbs water and is subjected to heat, brake fluid breaks down over time. One possible outcome—fluid oxidation—can wear out the hydraulic system. New brake fluid should be golden-coloured; if it’s black, it’s time for a replacement.
Brake warning light: The brake warning light may come on for a variety of reasons, including activation of the parking brake, low brake fluid level, unbalanced hydraulic fluid flow or low brake pad friction material thickness. Never ignore the brake warning light.
How to Perform an Operational Check
The key to keeping on top of brake maintenance is being observant as to how your brakes feel when you’re using them. Here are a few things to watch out for:
Abnormal noises: You should hear almost nothing when slowing down and coming to a stop. Any squealing, scraping or rubbing noises is a sure sign that something is wrong. Clicking or clunking sounds could be indicative of loose brake or suspension parts. Abnormal noises could be also caused by a loose bolt or a broken pad.
Pulling left or right: If the vehicle pulls to one side, you may have a hydraulic or mechanical problem on your hands. For instance, if the vehicle pulls to the right on braking, one of the driver-side brakes could be at fault, perhaps due to air in the system or a seized brake caliper slider or piston. Uneven brake pad wear may also indicate faulty brakes.
Pedal feel: When you step on the brake pedal, it should feel more firm the harder you step on it. If you step on the pedal and it feels light with instances of sudden heaviness, there may be air in the system or a mechanical fault, such as a seized caliper slider. For cars with rear drum brakes, it may be time for a rear brake adjustment.