Pay attention to how to prevent frost in air conditioning during winter driving

In the cold wind, the severe winter solstice, and the ice and snow, our engine is still burning with surging passion and vitality. Recently, many car owners have consulted about winter driving issues. In order to give you some effective suggestions for winter driving, we will provide some suggestions for winter driving and vehicle maintenance by the professionals of 4S stores for your reference.

1. Difficult to start in winter

Many riders report that when driving in winter, it will be more difficult to start in the morning.

Note: Starting the vehicle in winter, because the temperature at night is very low, and the low temperature will slow down the oil flow rate in the engine. Therefore, there will be requirements for the low starting temperature of the engine oil, so it is recommended that you use the quality-assured engine oil recommended by the 4S shop. The use of approved brand models of engine oil can ensure that our car always maintains a stable working state and can be more effective. Extend the service life of vehicle components.

Suggestion: We recommend that the owner use the oil recommended by the 4S shop. At the same time, we recommend that the owner turn the key to the vehicle preparation state before starting. The owner can press the start button without stepping on the brake. The purpose is to let the vehicle complete the self-test before starting. Starting the vehicle after the self-test can better protect the circuit of the vehicle, and reduce the load when the vehicle is started to a very low level, then turn off the radio, the interior lighting equipment and the air conditioner, and then start the vehicle. Owners of manual gear can also step on the clutch to start, long-term adherence, can extend the working life of the air motor. It is very good for our car.

Second, the winter glass frost

Many riders report that when they sit in the car in the winter morning, there will be a lot of frost on the window, which will greatly affect the sight.

Note: When we are parking, the interior of the car will maintain a more comfortable temperature due to the effect of air conditioning, and in the middle of the night, the temperature outside the car is very cold. Therefore, when the cold air touches the heated car glass, condensation will occur. And at low temperatures, it forms frost.

Suggestion: We suggest that when you turn off the air conditioner during parking, adjust the air duct of the air conditioner to the external circulation state and then turn it off. You can even run the air conditioner in the state of the external circulation + low temperature setting for a period of time to let the temperature inside the car To the extent that it does not cause condensation of the windows, but it is not recommended to open a gap in the window, because in a public parking environment, leaving a gap in the window is likely to cause the loss of property in our car, or at least it will stain our car. Interior.

If the frost has already formed, do not use hot water to flush the glass. Even if you use a product with a very high quality temperature range, the glass of the car may be exploded under the impact of sudden cooling and heat. In addition, in addition to not using hot water to flush, we should not immediately use a wiper to scrape. Because the condensate will flow down the windshield before frosting, the possibility of the windshield being frozen by the frost is very high. Forcibly starting the windshield wiper may not only cause tearing damage of the windshield wiper, even The wiper motor may be burnt because the wiper sticks to the windshield. If the glass water temperature is relatively low, it may burn the glass water pump.

The correct method is: we can start the vehicle, and after the engine temperature rises, use the glass blowing option in the air conditioning option to increase the temperature on the glass. In addition, you can buy some special low-temperature glass water in the 4S shop. The low-temperature environment glass water not only provides you with a clear and bright driving visual experience, but also protects your vehicle cleaning system in the normal operation of the low-temperature environment.

3. Regarding the hot car in winter

Many riders reflect: Should it be better to idle for a period of time after starting in winter, and it is better to go on the road until the water temperature rises?

Note: Because the temperature in winter is relatively cold, the lubricating oil in the engine and gearbox mechanism can no longer reach the standard required flow rate and working state, so there is no problem to give the engine a warm-up time, but if it has been kept at At very low idle speeds, the pressure of the oil pump is unable to drive the oil to the top of the engine, so a hot car for too long may cause unnecessary wear of the overhead camshaft, and it is easier to produce carbon deposits in the engine cylinder.

Suggestion: We recommend that riders can drive on the road at a slower speed after starting the car. As long as the speed does not exceed 2000 rpm and does not accelerate, the oil film on the engine parts will protect the engine from excessive wear and tear. During low-speed driving, the lubricating oil in the running mechanism can be attached to the running mechanism faster and better, so that our car can enter the working state faster.

4. The start of winter driving safety

Many riders report that the rear-wheel drive will slip in the snow, and it will swing at the start, which is very dangerous.

Note: Since the torque of some rear-drive cars is very large, slippage may occur when the frictional force is relatively small on icy and snow roads, and the reason for flicking is usually due to the rear-drive car if the road is not inclined. The position of the front wheels is not caused by the correct alignment.

Suggestions: First, we must maintain the forward direction of the front wheels, and never swing our steering wheel because of skidding. In the slipping state, twisting the steering wheel will definitely cause tail swing. Therefore, we recommend that you put your hands on the steering wheel at 3 o'clock and 9 o'clock. The reason is that as long as the position of our hands is flat, the angular position of our wheels must be straight and not offset. Second, our automates use automatic transmission to switch to the manual-automatic mode after engaging the D gear "forward gear" and choose to start with 2nd gear or even 3rd gear. In this way, the torque transmitted by the rear wheels to the ground can be reduced in an instant. In order to achieve the normal start effect. If it is the owner of the manual gear, we can directly hang on the 2nd or 3rd gear after activating the DTC function and gently lift the clutch and slowly step on the accelerator to start, which can also achieve a better starting effect.

5. Brakes for safe driving in winter

Many riders report that in winter, it is very easy to lock the brakes. Although there are anti-locking aids, it is still very easy to slide sideways because of the brakes, which is very dangerous.

Note: Although there is ABS anti-lock braking support, many car owners will be very nervous when the ABS starts due to the rebound of the pedal, which will cause the brakes to dare not be pressed to the end, so the braking distance is very long and it is easy to start in the ABS system. There is a short moment of lockup before work that causes the car to skid.

Suggestion: First of all, we recommend that you keep the direction of the front wheels as same as the inertia of the vehicle as you did when you started, that is, put your hands on the steering wheel at 3 and 9 o'clock, put your hands flat and let the wheels go positive. After that, we suggest that in an emergency, our riders vigorously depress the brakes. As long as the steering wheel is pointing positively, the car will not slip significantly, and the ABS system will control the rebound of the brake pedal during work. , So that the driver will not feel the obvious rebound force when the ABS starts working, so the brake distance on the straight line can be controlled by vigorously pressing the brake to the end.

In addition, when the emergency braking is needed in rain and snow, our braking distance will increase due to the adhesion of rain or snow on the brake disc. For our owners, we control the speed of the car for a while. Living is very important.

6. Main points of winter maintenance

In addition, winter maintenance is also very important. In addition to the oil and glass water mentioned above, the low-temperature antifreeze can keep the ice free when the engine is stopped and the external environment temperature is very low, so it will not be because the outdoor temperature is too high. The low temperature causes the water tank to freeze and crack, which can provide better cycle cooling support for the engine's operation in a shorter period of time after the car is started.

Winter tires provide more intimate driving protection for the majority of riders. Winter tires have silicium materials with strong cold resistance, special rib design and self-cleaning treads, even if the road temperature is as low as 7 ℃, when When your car is driving on a frozen road at 30 kilometers per hour for emergency braking, the braking distance of winter tires will be as much as 11 meters shorter than ordinary summer tires. It protects the safety of drivers and vehicles to a considerable extent.