What does the triangular exclamation mark in the lower right corner of a BMW mean?

How to Observe Reference Points in S-Turn?

Learning the reference points for S-turn driving is as follows: First reference point: When taking the curved driving straight-line test, ensure the car body is straightened before entering and drive to the center of the road. When the center of the car hood touches the right roadside line, quickly turn the steering wheel half a turn to the left, allowing the left corner of the car hood to follow the roadside line. If the car hood is about to go beyond the roadside line, turn the wheel slightly more to the left to keep the left edge of the car hood aligned with the roadside line. Second reference point: When the car hood reaches the middle of the curve junction, quickly turn the steering wheel to the right to straighten it. Due to previous adjustments, this usually requires about one full turn. (Note: This depends on your operation. Adjust appropriately if too much or too little is turned, as running over the line with the wheels will result in failure, so be very careful.) Third reference point: When the middle of the car hood touches the left roadside line, remember to turn the wheel half a turn to the right. The subsequent operation is similar to the first reference point, but in the opposite direction. Since everyone's operation may vary slightly, always ensure the right corner of the car hood follows the roadside line. Adjust slowly if too much or too little is turned.

2

1

Share

What to Do If the Vehicle Stalls and Is Restarted After Wading Through Water?

It is strictly prohibited to restart the vehicle without any treatment after it stalls due to wading through water. Although the restart may seem normal, water has already entered the engine cylinders through the exhaust pipe. The engine's protection system causes the vehicle to stall. If the vehicle is restarted, even if the engine is later repaired, its lifespan will be significantly reduced, and the likelihood of malfunctions will be very high. The final outcomes are only two: either replace the engine or sell the car. Reasons for stalling after wading through water: 1. The high-voltage ignition system is damp or short-circuited due to water ingress, causing the stall: This is quite common. The water may appear shallow, and the car seems capable of passing through, but it stalls, usually due to splashing water. 2. Water entering the exhaust pipe: The car's exhaust pipe is positioned relatively low. Generally, if the water level rises above the exhaust pipe, the vehicle will stall due to the inability to expel exhaust gases. 3. Water entering the air intake: This occurs when water enters through the air filter, leading to a stall. This situation is less common and usually happens when the water level is relatively high.

13

1

Share

What is the difference between automatic anti-glare and manual anti-glare?

Automatic anti-glare and manual anti-glare differ in the following aspects: Different components: The anti-glare rearview mirror consists of a special mirror, two photodiodes, and an electronic controller. The electronic controller receives signals of front and rear light from the photodiodes. It can be divided into manual anti-glare rearview mirrors and automatic anti-glare rearview mirrors. Different working principles: Working principle and characteristics of manual anti-glare rearview mirrors: They use a mirror with two reflective surfaces. During the day, the surface with higher reflectivity is used, and at night when there is strong light from behind, it needs to be manually adjusted to the surface with lower reflectivity. Although this can prevent glare, this ordinary anti-glare rearview mirror is troublesome to use as it requires manual adjustment according to the environment. Working principle and characteristics of automatic anti-glare rearview mirrors: When light shines on the interior rearview mirror, if the light from behind is stronger than that from the front, the electronic controller will output a voltage to the conductive layer. This voltage changes the color of the electrochromic layer on the mirror surface. The higher the voltage, the darker the color of the electrochromic layer. At this time, even if strong light shines on the rearview mirror, the light reflected to the driver's eyes by the anti-glare interior rearview mirror will appear dim and not dazzling, making it more intelligent.

7

3

Share

What are the reasons for the BYD S6 air conditioner not cooling?

The reasons for the BYD S6 air conditioner not cooling include excessive refrigerant, insufficient refrigerant, excessive impurities in the refrigerant and frozen engine oil, and minor blockages. Excessive refrigerant: If the refrigerant in the air conditioning pipeline exceeds the standard, the system pipeline pressure will rise accordingly, which in turn will cause poor heat dissipation in the system, making the air conditioning not cooling phenomenon more severe. In this case, the excess refrigerant must be removed. Insufficient refrigerant: A slight leakage of refrigerant in the system leads to insufficient refrigerant, which will inevitably reduce the amount of refrigerant sprayed into the evaporator from the expansion valve. When the refrigerant evaporates during the evaporation period, the absorbed heat will also decrease accordingly, leading to a reduction in cooling capacity. In this case, refrigerant needs to be added. Excessive impurities in the refrigerant and frozen engine oil, and minor blockages: In the entire air conditioning system, if there are too many impurities in the refrigerant and frozen engine oil, the filter screen of the filter will inevitably become clogged, affecting the cooling passage capacity, increasing resistance, and possibly reducing the refrigerant in the expansion valve proportionally, thus affecting the insufficient cooling capacity. In this case, it is necessary to go to a repair shop to find a professional to clean the blockages.

10

2

Share

What Are the Common Sense Tips for Daily Car Maintenance?

Here are some common sense tips for daily car maintenance: Before starting the engine, first turn on the ignition. Do not start the engine directly. When the ignition is turned on, the vehicle usually performs a self-check, during which all indicator lights will illuminate simultaneously. Wait for the self-check to complete and the lights to turn off one by one before starting the engine. This typically takes about 3 seconds. Regularly inspect the brake pads. Check the front brake pads at around 30,000 kilometers and the rear brake pads at about 60,000 kilometers. Replace them promptly if they are significantly worn. Perform a tire rotation at 30,000 kilometers—swap the front tires with the rear tires to extend their lifespan. When starting a cold engine, let it idle for about a minute and a half to allow for proper warm-up. (At startup, the engine's internal temperature is not yet at the normal operating level—the temperature gauge should read 90 degrees for optimal conditions. The car may shake, the engine noise may be louder, and the tachometer may read slightly higher—normally between 600 and 900 RPM. Starting under these conditions can lead to carbon buildup in the engine due to incomplete combustion at low temperatures.) It is essential to schedule regular maintenance at a professional 4S shop. Typically, minor maintenance is required every 5,000 kilometers, major maintenance at 10,000 kilometers, and then every 5,000 kilometers thereafter. After parking, wait for half a minute before turning off the engine. (The engine remains at a high temperature after stopping, and shutting it off immediately—which turns off the cooling fan—is not ideal for cooling.) Do not let the fuel tank run empty; refuel before the low fuel light comes on.

6

3

Share

What are the effects of a car being submerged in water?

Here are the effects of a car being submerged in water: When it's very serious: The electronic modules inside the car will be soaked in water. If not handled promptly and properly, it can corrode wires, plugs, and internal circuit boards, leading to vehicle alarms and functional failures. At this time, try not to turn on electronic devices. You can use a mechanical key to open the door and call a tow truck immediately to send the vehicle to a repair facility for treatment. When the engine stalls: If the vehicle stalls during the water crossing, do not attempt to restart it. Even if a small amount of water enters the engine, it can mix with the engine oil, degrading the oil quality. Oil containing water can increase wear on engine components, potentially leading to louder engine noise and greater vibration in the future. In severe cases, it may frequently cause oil burning or engine damage. When it's not serious: If there is no large amount of water on the floor mats, it is recommended to remove the vehicle's battery to prevent electrochemical corrosion, which can accelerate rusting of modules and plugs. Then take out the floor mats, seat covers, etc., and wash and dry them to prevent odors later. After drying, it is advisable to perform a comprehensive disinfection of the car. Being soaked in rainwater can breed many germs, so disinfection is necessary. In daily use, pay attention to closing all windows before getting out of the car and develop the habit of closing windows.

8

0

Share

What does the triangular exclamation mark in the lower right corner of a BMW mean?

How to Observe Reference Points in S-Turn?

What to Do If the Vehicle Stalls and Is Restarted After Wading Through Water?

What is the difference between automatic anti-glare and manual anti-glare?

What are the reasons for the BYD S6 air conditioner not cooling?

What Are the Common Sense Tips for Daily Car Maintenance?

What are the effects of a car being submerged in water?

What is the sequence between the automatic transmission handbrake and gear shifting?

Is it okay not to change the transmission oil for a Sagitar after 100,000 kilometers?

How tall is a concrete mixer truck?

Which car model is the BYD7150A5M?