Does the car speedometer display average speed or instantaneous speed?

Why Does the Car Make Strange Noises When Braking?

Here are the specific reasons why a car makes strange noises when braking: 1. Improper installation of brake pads: When installing new brake pads, the old brake discs were not polished, resulting in a poor fit. A poor fit or installing new brake pads without polishing the old discs will cause the new pads to rub directly against the uneven surface of the old discs, ultimately leading to uneven wear of the new brake pads. 2. Brake system malfunction: There may be a defect in the brake system itself, causing the brake pads to only partially contact the brake discs. This increases the pressure per unit area on the brakes, resulting in strange noises. It is recommended to check components such as the caliper and guide pins. 3. Presence of foreign objects: Foreign objects cause a mismatch in the contact surface, leading to strange noises.

6

0

Share

What does it mean to check the ESP system?

Checking the ESP system means there is a malfunction in the vehicle's Electronic Stability Program. Below are the specific details about the ESP system: 1. Function: The ESP, or Electronic Stability Program, analyzes information from various sensors about the vehicle's driving state and sends commands to systems like ABS and EBD to help maintain dynamic balance. ESP ensures optimal stability under various conditions, particularly in cases of oversteer or understeer. 2. Oversteer situation: When the ESP system sensors detect and send signals to the ESP control unit, it intervenes by braking the outer front wheel. This single-wheel braking helps stabilize the vehicle without driver intervention. 3. Understeer situation: Upon receiving signals from the sensors, the ESP control unit brakes the inner rear wheel during a turn. This corrective braking ensures the vehicle remains stable.

10

3

Share

What does 5w30 mean for engine oil?

5w30 represents the grade of engine oil, where 5W indicates a low-temperature resistance of -30°C, and 30 denotes viscosity. Below are the specific details about engine oil: 1. Mineral oil: Derived from crude oil, mineral oil typically has a low cost. However, due to its base being more prone to oxidation, various imported additives are mixed in. Its service life is approximately six months. 2. Semi-synthetic oil: Although more expensive to refine, it offers excellent oxidation resistance, making it a highly effective long-lasting oil with a service life of about twelve months. Considering the balance between price and quality, semi-synthetic oil has the widest range of applications. 3. Full-synthetic oil: This is chemically synthesized engine oil, which can maintain its lubricating properties even under conditions where the base oil fails.

2

1

Share

How to deal with the TC slash yellow light on the dashboard?

When the TC slash yellow light on the car dashboard comes on, it indicates that the vehicle's traction control system is turned off. Simply turning on the traction control system will make the yellow light go off. Here are the specific details about the car traction control system: 1. Function of the traction control system: It mainly helps to effectively maintain driving force and prevent the driving wheels from spinning when the vehicle starts or accelerates on slippery roads, ensuring driving safety to a certain extent. 2. Impact of turning off the traction control system: Turning off the system does not affect driving, but when the wheels slip, the engine will not reduce power output, and the driving wheels may spin on slippery roads. As an auxiliary driving system, it helps with driving stability, so it is generally recommended not to turn off the traction control system under normal driving conditions. However, if the vehicle is stuck in mud, sludge, or snow, the owner can turn off the traction control system to increase the engine power output to the wheels and help the vehicle get out of the predicament of being unable to move forward.

20

1

Share

What to Do If the Hood Won't Open?

The hood release lever is typically located under the dashboard on the driver's side. After pulling it, locate the secondary latch near the hood to open it. Below are the key functions of a car hood:1. Airflow Management: For high-speed vehicles, airflow resistance and turbulence around the vehicle significantly impact trajectory and speed. The hood's design optimizes airflow direction relative to the car's movement, reducing resistance. Proper airflow redirection converts drag into beneficial downforce, enhancing front-wheel traction and driving stability.2. Component Protection: The hood safeguards critical components including the engine, electrical systems, fuel lines, braking system, and drivetrain. Its reinforced structure protects against impacts, corrosion, rainwater, and electromagnetic interference, ensuring proper vehicle operation.3. Safety Shield: Operating in high-temperature, high-pressure, and flammable conditions, engines risk explosions, fires, or leaks from overheating or component failure. The hood acts as a protective barrier against such hazards.

18

3

Share

What should the temp be set to in a car?

The temp in a car should be set between 18°C and 25°C. Here are the specific details about car air conditioning systems: 1. Temp button: The 'temp' in a car refers to temperature, and you can adjust the car's temperature via this button. The temp button is usually located on the car's center console, and in some models, it can also be found near the rear air vents, allowing independent control of the rear air conditioning temperature. Rear independent air conditioning is typically only available in mid-to-high-end models. 2. Air conditioning system structure: The car air conditioning system includes cooling, heating, and ventilation devices. The structure of the air conditioning system is relatively simple, making it easy for the driver to operate. In some mid-to-high-end models, the car uses an automatic air conditioning system, which can adjust the interior temperature automatically with a single button. 3. Manual air conditioning: Lower-end models are equipped with manual air conditioning, which requires adjusting the temperature, fan speed, and airflow direction via control panel buttons. Both adjustment methods work on the same principle, but the automatic air conditioning program is more complex. Automatic air conditioning adjusts the fan speed and temperature based on external sensors to maintain the optimal interior temperature.

10

3

Share

Does the car speedometer display average speed or instantaneous speed?

Why Does the Car Make Strange Noises When Braking?

What does it mean to check the ESP system?

What does 5w30 mean for engine oil?

How to deal with the TC slash yellow light on the dashboard?

What to Do If the Hood Won't Open?

What should the temp be set to in a car?

What are the differences between diesel engines and gasoline engines?

What Maintenance Items Does a 100,000 km Vehicle Require?

How to Find the ACC Wire in a Car?

How to Determine if the Thermostat is Faulty?