Hello everyone, I'm Xiao Li. Many drivers will not operate when driving an automatic transmission car downhill, which is a great safety hazard. Some friends think that the next slope is just a step, just step on the brakes on the line can have any potential safety hazards? But the actual situation is that we see this kind of 10 or 20 meters of slope that is not called a slope at all, the real long downhill is often started according to the number of kilometers, driving on this slope, if you can't drive the automatic car, it may cause brake failure.
There is a slope of more than 200 meters on my own commute to work, and I have to run once a day, and every time I go down this slope, if I hang D gear, I must step on the brakes, otherwise I will be speeding, and there is speed monitoring. But I've tried it many times, and as long as it's in D gear, whether you step on the gas pedal or not, the speed will get faster and faster, and it's no different from a car with a manual transmission in neutral. After applying the brakes halfway, the speed decreased, but when you release the brakes, you will speed again and have to apply the brakes again.
In fact, there is no problem with this kind of slope of more than 200 meters, and it will pass by stepping on the two-foot brakes in D gear, but I have experienced a 27-kilometer downhill road when I am traveling by car, and it feels really exciting, and the fuel consumption is a lot lower, and I have directly saved a lot of road fares. But the brakes are also really sinful, as long as you dare to release the brakes, you will soon exceed the maximum speed limit, and if you want to maintain a relatively safe speed, then sorry, you have to wear the brakes all the time. However, if you keep wearing the brakes like this, the brake pads will be rubbing all the time, and the heat generated will not have time to dissipate heat, which will lead to abnormal wear of the brake pads. I was thinking, it's good that my own brake pads were replaced when I was driving, otherwise they wouldn't be worn enough. Even if the brake pads do not fail, in case the brake hose conducts the brake fluid is aging or bulging, in the case of such frequent brake stress, it will be finished if it suddenly breaks through the critical point and leaks.
Therefore, when driving an automatic transmission model, you don't have to learn to use M gear to open when encountering this long downhill slope, M gear is the manual mode on the automatic transmission gearbox, but not all automatic transmission transmissions will have M logos on it, some models are directly represented by the symbol of "+" and "—", but the functions are the same. In the state of D gear, we don't need to step on the brakes, and we don't need to have other superfluous operations, just push the gear knob to M gear. At this time, the gearbox will lock in a more moderate gear according to your current speed, such as when locked in 1st gear, the D symbol on the dashboard will change to the display of M1. In this state, the car can't slip faster and faster.
If the lock is in 4th or 5th gear, but we feel that the car is still slipping faster and faster, or we have to keep stepping on the brakes, then at this time we can dial up in the direction of the often minus sign once, lower a gear, at this time the car will pull the engine speed higher, we can clearly feel the vehicle deceleration, we can reduce the frequency of braking, to avoid brake failure. But before we run at high speed, in addition to this operation, we must also learn to check the vehicle's braking system to eliminate potential safety hazards, a car without potential safety hazards, even if it encounters this kind of long downhill, you can safely go downhill most of the time with D gear.
There are 3 main steps to detect the brake system, the first step is to open the engine compartment to see if the brake fluid scale is normal, whether there is a problem of black and turbidity, if there is a problem, it proves that it is time to change. After the brake fluid is fine, the second step is to see if the brake pads exist, wear too much or fall off, if so, they should be replaced as soon as possible. The last step is very important and is related to your safety, so don't be careless.
We have to fill the steering wheel to one side, and then observe whether this section of the hose of the brake hose has aging cracks and bulges, and if so, we must replace it as soon as possible. Because this is with the hose is stressed, when we step on the brakes, it will withstand a certain force, if it has potential safety hazards, it will be early and frequent in the process of stepping on the brakes in the process of perforation and oil leakage, resulting in brake failure, be sure to pay attention to check, the left and right sides of the wheels are there, if it is a 4-wheel butterfly kill car, then there are 4 wheels.
The above is about the operation of automatic transmission models to prevent brake failure from long downhill, and novice friends who do not know it must learn and do not have a fluke mentality. It's also a life-saving way to avoid brake failure, and in case the brake fails, you can also use this operation to assist the handbrake to slow down. If you think what I said is helpful to you, don't forget to give me a thumbs up and thank you.