How to Deal with Overheated Brake Pads During Continuous Downhill Driving?
2 Answers
Here are the relevant solutions: 1. Make full use of engine braking when going downhill: Shift into an appropriate gear when descending, and utilize engine braking to assist with braking. This can reduce the burden on the braking system and lower the probability of brake pad heat fade. 2. Stop and rest when braking force becomes insufficient during continuous downhill driving: Continuous downhill driving often involves lightly pressing the brakes for extended periods, which can lead to heat fade due to insufficient heat dissipation from the brake discs. If you experience reduced braking force due to heat fade, stop accelerating and use intermittent braking (pumping the brakes) to bring the vehicle to a halt in the direction of travel. After stopping, rest for a while to allow the braking system to cool down naturally before continuing. Do not pour cold water on the brake pads or apply lubricating oil. 3. If you frequently drive long distances, opt for ventilated or drilled brake discs when purchasing a car: Frequent stop-and-go driving reduces the likelihood of heat fade, but this approach is inefficient. If you often drive long distances, avoid cars with front disc and rear drum brakes. Ventilated discs offer better heat dissipation, and some ventilated discs are designed as drilled discs for even better cooling. If you frequently engage in aggressive driving or travel on mountainous roads, consider upgrading to drilled ventilated discs for superior heat dissipation.
I've been driving in mountainous areas for decades and often encounter the issue of overheated brake pads during continuous downhill descents. I remember that time coming down the mountain road when the brakes felt spongy underfoot, which gave me quite a scare. The key in such situations is not to panic—first, switch to manual mode or a lower gear, like 2nd or 3rd, to use engine braking to help slow down and reduce reliance on the brakes. If conditions permit, find a safe spot to pull over and rest for about 15 minutes, allowing the brake pads to cool naturally. Avoid hastily splashing water on them to prevent cracking. Before descending, I make it a habit to downshift in advance and maintain speed below 40 km/h to avoid riding the brakes continuously. Ignoring overheated brake pads can lead to dangerous failure, so before every trip, I always check the brake pad thickness and fluid level—never skimp on maintenance costs.