What to Do When Car Headlights Are Not Bright Enough?

How long can tires be used after production?

Generally, tires should not be stored for more than 3 years from the date of production, and should not be used for more than 8 years after being installed on a vehicle. Here is more information about car tires: 1. Tires are one of the important components of a car. They directly contact the road surface and work together with the car suspension to mitigate the impact during driving, ensuring good ride comfort and smooth driving. 2. They ensure good adhesion between the wheels and the road surface, improving the car's traction, braking, and off-road capability. As they bear the weight of the car, the important role tires play in vehicles is increasingly recognized.

15

2

Share

What is the relationship between engine torque and power?

Power and torque are related by the formula: Power (W) = Torque (Nm) × Speed (rpm) × 2π/60, which can be simplified to Power (kW) = Torque (Nm) × Speed (rpm)/9549. The meanings of automotive power and torque are as follows: 1. Power refers to the work done by the car per unit of time. The greater the power, the greater the torque, and the higher the pulling force of the car. Maximum power is commonly used to describe the dynamic performance of a car, and it is usually expressed in horsepower (PS) or kilowatts (kW). 2. Torque refers to the moment output from the crankshaft of the engine. Under a fixed power condition, it is inversely proportional to the engine speed—the faster the speed, the smaller the torque, and vice versa. It reflects the load capacity of the car within a certain range.

4

2

Share

What is the difference between engine power L and T?

The differences between engine power L and T are as follows: 1. Power aspect: The T version features a turbocharger. Before the turbo kicks in, both are similar, but after the turbo engages, the T version is more powerful than the L version, with a power increase of about 40%. 2. Acceleration aspect: The T version has stronger instant acceleration than the L version, but the L version offers a more linear and smoother acceleration process. 3. Cost aspect: The T version is more expensive than the L version. 4. Maintenance cost aspect: The T version costs more to maintain than the L version, as it has higher requirements for both gasoline and engine oil. 5. Lifespan aspect: The L version outperforms the T version in terms of lifespan. Without exaggeration, under normal conditions, the L version can last until it's scrapped—take taxis on the road as an example. 6. Fuel consumption aspect: The T version is more fuel-efficient.

16

5

Share

What Causes Brake Noise in Winter?

Winter brake noise can be attributed to the following reasons: 1. Many brake pads incorporate steel grit for enhanced durability. These harder brake pads can easily produce noise when clamping the brake disc, though this also depends on the compatibility between the brake pad and disc—some combinations are more prone to noise. 2. Temperature fluctuations affect both the brake disc and pads, sometimes causing the brakes to squeal or emit sharp noises. 3. Generally, these sounds are harmless but can be unpleasant. However, switching to high-quality, steel-grit-free brake pads can mitigate these issues.

17

3

Share

What does the ECO on the new Sylphy mean?

ECO stands for the car's economical driving mode function. It is an English abbreviation formed by the combination of Ecology (environmental protection), Conservation (energy saving), and Optimization (power). The Eco mode is further divided into active Eco driving mode and passive Eco driving mode. When the Eco indicator light on the dashboard illuminates, it indicates that the vehicle's economical mode has been activated. Eco mode is categorized into active and passive types. The difference lies in that the active type has a dedicated button, allowing the driver to choose whether to activate it. When the driver presses the Eco mode switch, the dashboard indicator light immediately turns on, and the vehicle automatically begins adjusting settings such as throttle opening, transmission shift logic, and air conditioning output power. The passive Eco mode does not have a dedicated button. When the Eco indicator light on the dashboard illuminates, it serves merely as a reminder function. The Eco system automatically evaluates your driving behavior. If your current driving operation achieves the optimal fuel supply, the dashboard will simultaneously display the Eco indicator light. Most cars employ the active Eco driving mode, meaning they have a dedicated switch button. Therefore, during daily driving, we can activate the Eco mode. However, it is unnecessary to enable Eco mode when driving at speeds exceeding 120 km/h, during idle parking, in N/P gear, or in manual mode, especially when climbing hills. Doing so would not reflect the fuel-saving characteristics of Eco mode and could instead impact the vehicle's power performance. Additionally, the Eco mode typically becomes ineffective under the following circumstances: When the vehicle speed exceeds 120 km/h, the car prioritizes speed, causing the Eco mode to automatically deactivate. During idle parking or when in N/P gear or manual mode, the Eco mode may also become ineffective. When a high torque output is required, such as when climbing a hill, the engine control unit prioritizes ensuring sufficient power to drive the vehicle, and the Eco mode will not function in such scenarios.

7

5

Share

What does it mean when the EPC light is on in the car?

The EPC light on the car indicates a fault. Common reasons for the EPC indicator light staying on include engine intake system failure, throttle failure, fuel system failure, engine failure, ECU control unit failure, and brake light failure. The EPC indicator light can illuminate in two states: during power-on self-test and under other circumstances. The power-on self-test is a pre-driving check of all vehicle sensors. Typically, if the engine is not started after power-on, the light will turn off by itself after about 3 seconds. In other cases, if the EPC light stays on or remains illuminated for an extended period after starting the vehicle, it indicates a problem. Below is a detailed explanation of the reasons for the EPC light illuminating under other circumstances: Engine intake system failure: The EPC light will activate if the engine intake is obstructed or insufficient. Throttle failure: Carbon buildup is a common issue with the throttle. Additionally, dirt accumulation can affect intake, triggering the indicator light. Fuel system failure: This includes issues such as substandard fuel, degraded fuel, or poor fuel atomization. Engine failure: Insufficient engine pressure or problems with the intake valve and other power system components can also cause the EPC light to activate. ECU control unit failure: Examples include interference with the vehicle computer signals or false alarms from the vehicle computer. Brake light failure: This includes situations where the brake light does not illuminate, the brake switch malfunctions, or there are issues with the brake wiring. Solutions for when the car's EPC indicator light is on: Troubleshoot the intake system, use fuel with the appropriate octane rating, clean the throttle, etc. Remove carbon deposits from relevant components. Re-flash the ECU with updated data. If the EPC light comes on, the owner can first try turning off the engine and restarting it to see if the light remains off. If it does not come back on, there may be no issue, and the EPC light might have been affected temporarily. If the EPC light stays on or frequently illuminates, drive to the nearest service point for professional diagnosis and repair to eliminate potential safety hazards. The full English name of EPC is Electronic-Power-Control, which translates to electronic power control. Most people refer to it as the engine electronic stability system. The EPC system primarily includes controllers and sensors related to the power system. When sensor data in the system is abnormal, the EPC system will take predefined actions on the power system. Common EPC indicator lights are displayed in two colors: yellow and red. A yellow EPC fault light indicates that the car can still be driven, but it should be driven cautiously to a repair point for inspection. A red EPC fault light signifies a more serious issue, and the driver should pull over immediately and contact a repair technician. Continuing to drive under these conditions could severely damage the vehicle's core components or compromise driving safety.

15

0

Share

What to Do When Car Headlights Are Not Bright Enough?

How long can tires be used after production?

What is the relationship between engine torque and power?

What is the difference between engine power L and T?

What Causes Brake Noise in Winter?

What does the ECO on the new Sylphy mean?

What does it mean when the EPC light is on in the car?

Does the tire pressure monitoring system provide alerts?

At How Many Kilometers Should a Car Be Scrapped?

How Long Does It Take for a Car to Be Considered Stock?

What is the difference between a full trailer and a semi-trailer?