A huge amount of heat is usually generated when brake calipers help your car brake during a standard drive. This heat directly radiate from the brake pads and rotors straight into caliper assembly where temperatures can soar to as high as 300 Degrees Fahrenheit. Corrosion eventually occurs as a result of countless heat up and cool-down cycles. This corrosion comes from so many different places. It could be from moisture in the air whether its precipitation or humidity or even from brake fluid that hasn’t been changed for a long time. This is just but an overview of how your Volvo brake calipers wear. To ensure the wear and tear factor does not get you off guard, know a thing or two about identifying brake caliper trouble on time. In other words, be keen on any of the following signs.
Car Pulling To One Side
This is caused by a brake caliper that refused to bind up and release. Brake pads then drag and the car is forced to pull to one side. You will quickly notice this each time you apply brakes. The car will pull towards the ‘good’ side where the grip is still strong. The car will then pull towards the bad side once you release the brake. This happens because the ‘bad’ side towards which the car pulls still grips because it has not released.
Uneven Brake Pad Wear
Compromised or rusty bushings or slides can easily create a situation where a floating style brake caliper cannot move freely and easily along its own path or travel. Because of this, the brake pads will wear out unevenly. This happens because proper contact does not occur when the brake caliper hangs up. Excessive wear and tear on the outer side of the brake pads result in the brakes end up sticking instead or releasing freely. This is because the outer side will not be pulled away from immediate contact with the brake rotor. Note that these specific problems are hardly ever an issue with fixed calipers solely because their position is completely stationary.
Brake Fluid Leakage
As already explained, high levels of heat and corrosion from moisture build up in the brake fluid will cause problems with not just brake pads but the rotor and brake pads as well. Eventually, the boots and rubber seals around the caliper pistons deteriorate and cause brake fluid leakage. The affected brake caliper may or may not be affected from decreased braking pressure on the affected wheel even if or when the pistons still move freely. The leakage has to reach a certain point where the change in pressure will force the car to pull away from the affected side each time you brake. Fix the leakage because if it continues to leak, the reduced pressure will reach a dangerous level where the hydraulic brake system will completely fail.
Noise From Brakes
Squealing, grinding and other frictional noises from one of the car’s wheels as you drive means the car has a stuck caliper. The noise will temporarily go silent each time you brake. Note that when stick pistons are partially jammed in cylinder bores, they will release in an irregular and unpredictable pattern. This will cause irregular grip which will cause pulling. The only solution here is to fix the stuck caliper and replace it.