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Is It Normal for Brake Pads to Get Hot?

4 Answers
Harris
07/29/25 3:35am
Brake pads getting hot is normal, and here are the specific details: 1. Friction generates heat during car braking. Car braking is achieved by the friction between the brake pads and the brake disc, which creates braking force to slow down or stop the car. During normal operation of the braking system, the friction between the brake pads and the brake disc generates heat, causing the brake pads to become hot. 2. Introduction to car brake pads. Car brake pads, also known as brake linings, are friction materials fixed to the brake drum or brake disc that rotates with the wheel. Car brake pads are generally composed of a steel plate, an adhesive heat insulation layer, and a friction block. The steel plate is coated to prevent rust, and the coating process is monitored using an SMT-4 furnace temperature tracker to ensure the temperature distribution during the coating process meets quality standards.
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StephenLynn
08/12/25 2:31pm
It's common for brake pads to get hot after normal driving, since braking is essentially the process of converting kinetic energy into heat through friction. After half an hour of stop-and-go city driving, even touching the wheel hubs can feel scorching. However, if they get excessively hot after just a short trip or show blue oxidation marks on the hubs, that's a red flag. Common causes include a seized brake caliper causing drag, a parking brake not fully released, or warped brake rotors creating constant friction. Once, a friend's car had smoke coming from the right rear wheel—turned out the guide pin was rusted solid. Remember, after a stretch of highway driving, check the temperature by touch; a significant difference between sides indicates an issue, and prompt inspection is the safest approach.
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LaCody
10/02/25 6:49am
Anyone who has driven on mountain roads knows that it's completely normal for brake pads to get scorching hot during long descents. Last time I came down a winding mountain road, the wheel hubs were so hot you could fry an egg on them. But it's crucial to distinguish between normal heat and dangerous overheating: after continuous braking, you should only be able to touch the brake disc for two or three seconds at most - if you have to pull your hand away immediately, something's definitely wrong. Most often it's caused by failed brake caliper return springs or poorly bedded new brake pads. I recommend checking guide pin mobility with a screwdriver during every maintenance service - don't wait until the brake disc turns blue and warps. I remember once finding cracked dust boots during inspection that let grit in, causing constant drag braking friction - now that's what I call truly dangerous.
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VonAutumn
11/15/25 8:33am
New drivers might wonder: Is it a problem if the brake pads get hot? In fact, the vehicle's weight relies on the friction of the brake pads to slow down, so heating up is a normal physical phenomenon. However, during normal low-speed, short-distance driving, they shouldn't overheat excessively, nor should there be a burning smell. It's mostly due to poor-quality brake pads or the caliper piston not retracting, causing continuous pressure. When repairing cars, it's common to hear complaints from owners who have modified brake discs about excessive heat, but in reality, the original factory design offers the most balanced heat dissipation. Additionally, rust and sticking after driving through water in rainy weather are also common issues. In such cases, lightly applying the brakes and driving a few hundred meters can reset them. Remember, abnormal high temperatures can double the braking distance.
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What does it mean to downshift by two gears?

Downshifting by two gears refers to shifting directly from fifth gear to second gear, but in this case, it fails to successfully decelerate the vehicle and may instead cause the transmission gears to break. Therefore, when performing emergency downshifting, it is necessary to downshift step by step to minimize damage to the vehicle. The relevant details are as follows: Based on road conditions and vehicle speed, control the steering wheel properly, quickly press the accelerator pedal, and shift from a higher gear to a lower gear. Simultaneously, engage the handbrake, but avoid pulling it too tightly or holding it continuously, as this may cause the brake disc to "lock up," damaging the transmission components and losing braking capability. Also, do not pull it too loosely, as this may lead to excessive wear and overheating of the brake disc, resulting in loss of braking function. During the moment of upshifting, the engine speed drops immediately, but the vehicle speed remains unchanged. At the same time, due to the reduced transmission ratio, the torque output from the engine to the wheels also decreases. After completing the upshift, the vehicle accelerates by pressing the accelerator pedal, but due to the reduced torque output, the acceleration is relatively slow. Conversely, during the moment of downshifting, the engine speed rises immediately, but the vehicle speed remains unchanged. Meanwhile, due to the increased transmission ratio, the torque output from the engine to the wheels also increases.
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