What Causes the BMW 5 Series to Burn Coolant?

Can the CFMoto 250NK use 92-octane gasoline?

CFMoto 250NK can use 92-octane gasoline. Gasoline grades: Gasoline appears as a transparent liquid, flammable, with main components being C5-C12 aliphatic hydrocarbons and cycloalkanes, along with a certain amount of aromatic hydrocarbons. Gasoline has a high octane number (anti-knock combustion performance) and is classified into 90, 93, 95, 97, etc., based on the octane number. Gasoline production process: Gasoline is produced by the fractional distillation of crude oil and the cracking of heavy distillates. During crude oil processing, units such as distillation, catalytic cracking, thermal cracking, hydrocracking, catalytic reforming, and alkylation all produce gasoline components, but with different octane numbers and sulfur impurity contents. The gasoline components are blended, and high-octane components are added if necessary, to finally obtain gasoline products that meet national standards.

6

3

Share

Should Silicone Grease Be Applied When Changing Spark Plugs?

When changing spark plugs, silicone grease should be applied. It is important to note that the grease should only be applied to the white ceramic part and not to the metal contact area. Steps for changing spark plugs: Open the engine hood, remove the plastic cover of the engine, and disconnect the high-voltage wires. Mark each cylinder's position to avoid confusion. Use a spark plug socket to remove the spark plugs one by one. While removing them, check for any external debris like leaves or dust and ensure they are thoroughly cleaned. Place the new spark plug into the spark plug hole, hand-tighten it a few turns, and then use the socket to tighten it further. Reinstall the high-voltage wires in the correct firing order and reattach the cover. Spark plug replacement interval: Under normal maintenance conditions, spark plugs should be replaced every 40,000 to 60,000 kilometers. However, this may vary depending on the brand and engine type, so it is recommended to follow the vehicle's manual. Here are some general guidelines for maintenance replacement: platinum spark plugs should be replaced at 40,000 kilometers, standard nickel alloy spark plugs at 20,000 kilometers, and iridium spark plugs at 60,000 to 80,000 kilometers.

19

3

Share

What Causes BMW ABS System Failure?

ABS light can illuminate in various states, each with different causes and solutions as follows: State 1: ABS warning light remains constantly lit (most common). Cause 1: The ABS wheel speed sensor's sensing area is covered by mud, sludge, or other contaminants, affecting its ability to detect wheel speed signals. This prevents the ABS control module from determining vehicle speed or calculating wheel slip ratio, thus failing to issue proper braking commands. Solution: Clean the wheel speed sensor and adjust its gap with the tone ring to restore normal function. Cause 2: Loose system wiring connections or poor ABS relay contact causing signal interference. Solution: Inspect wiring connections and secure any loose terminals. State 2: ABS warning light intermittently illuminates but turns off during acceleration. Cause: Battery voltage drops below 10.5V when multiple electrical components are in use. The light extinguishes when engine RPM increases voltage. Possible low ABS system voltage due to poor terminal contact or grounding issues. Solution: Check battery specific gravity; inspect charging system; examine power supply (voltage relay or poor power contact). State 3: ABS light stays on after engine start until ignition OFF. Cause: Poor ground connection at ABS hydraulic valve body; faulty valve body wiring harness connector; ABS control module malfunction. Solution: Loosen and retighten valve body ground screw, cleaning contact surfaces if necessary; check for connector pin gap issues; replace ABS or ABS/ASR control module. State 4: ABS warning light activates during high-speed driving. Cause: ABS module detects significant speed difference between front and rear wheels; incorrect tire or wheel specifications. Solution: Verify proper tire/wheel specifications per vehicle requirements (refer to fuel door label). State 5: Intermittent ABS warning light activation. Cause: Maladjusted brake light switch; internal switch contact failure. Solution: With engine running, fully depress brake pedal while manually pushing switch lever downward, then release pedal to reset; replace brake light switch if needed. Important: When ABS light illuminates, discontinue driving immediately. ABS failure compromises anti-lock braking functionality, potentially causing wheel lockup during emergency stops, resulting in loss of vehicle control and trajectory adjustment capability, posing significant safety risks.

8

1

Share

Can You Get a Driver's License Without Attending a Driving School?

The regulatory authorities for driving schools are the Ministry of Transport and the Ministry of Public Security. It is not possible to obtain a driver's license without attending a driving school. Here is some extended information about obtaining a driver's license: 1. Subject 1: Road traffic safety laws, regulations, and related knowledge test. This is a written exam conducted on a computer, with a perfect score of 100. A score of 90 or above (including 90) is required to pass. 2. Subject 2: Field driving skills test. This is a practical test conducted on-site in a vehicle, with only pass or fail results. It includes five mandatory tasks performed in sequence: reverse parking, parallel parking, S-curve driving, right-angle turning, and hill start and stop. The perfect score is 100, and a score of 80 or above (including 80) is required to pass. 3. Subject 3: Road driving skills test. This is a practical test conducted on actual roads or simulated environments, with a perfect score of 100. The passing scores vary: 90 or above for large buses, 80 or above for large trucks, and 70 or above for other vehicle types. 4. Subject 4: Safe and civilized driving-related knowledge test. This is a written exam with a perfect score of 100. A score of 90 or above (including 90) is required to pass.

12

2

Share

Does the Equinox LTZ Version Have Heated Mirrors?

The Equinox LTZ version is equipped with heated mirrors. The heated mirror function in the Equinox LTZ version does not have a separate switch. To activate the heated mirrors, you need to turn on the rear window defroster. The switch button for the rear window defroster is located at the bottom left of the air conditioning knob on the passenger side. Pressing this button will illuminate the indicator light, indicating that the rear window defroster is on, and the heated mirrors will automatically activate. Heated mirrors are particularly useful during rainy or snowy weather. When activated, the heater behind the mirror quickly warms the surface, gradually removing rainwater or fog, eliminating the need for frequent manual wiping by the driver and thus reducing driving hazards. How to use the heated mirror function: There are generally two ways to activate the heated mirror function. One is combined with the electric mirror adjustment knob—simply rotate the knob to turn it on. The other is located on the air conditioning control panel—press the heating button to activate it. No manual angle adjustment is needed, as there is an adjustment button on the driver's side. Principle of the heated mirror function: After pressing the button, the electric heater behind the mirror glass rapidly heats up to a fixed temperature within minutes, typically between 35-60 degrees Celsius. Heat will radiate from both left and right mirrors. Meanwhile, as the temperature rises and evaporates, water droplets on the mirror surface become smaller, and fog gradually dissipates, effectively defrosting and de-fogging the mirror. However, if the rain is particularly heavy, the effect may diminish and become less noticeable. Precautions for using the heated mirror function: The principle of heated mirrors involves adding electric heating wires to the mirrors, which consume a significant amount of power. When using the heated mirror function, ensure the car is in an active state. Avoid activating the heated mirrors while the car is stationary to prevent draining the battery and leaving insufficient power to start the car. Other methods for defogging mirrors include: Opening windows for air circulation: Crack open both side windows slightly to allow air flow between the inside and outside of the car, reducing the temperature difference and gradually eliminating fog. Adjusting the car's air conditioning to the appropriate setting can also help by blowing warm air to remove fog.

12

3

Share

How Many Days Does It Usually Take to Receive a Notification for Running a Red Light?

After running a red light, the notification message for the violation captured by cameras is usually received within 3 to 7 days, with the latest being around 13 days. However, some cities now offer "instant electronic police capture alerts," where you can receive an SMS notification within 5-10 minutes of being captured. But this notification does not equate to a violation; it merely serves as a capture alert. The final determination of whether it is a violation takes 3-7 days. If it is confirmed as a violation, you will receive another SMS notification. For traffic violations captured by surveillance cameras, vehicle owners generally do not receive an immediate notification. There is a delay, and the duration may vary. After the electronic camera captures the violation, the relevant information needs to be transmitted through a dedicated channel to the traffic police management center. It is then compiled and forwarded to the relevant personnel for verification. If confirmed as a violation, the system automatically retrieves the vehicle owner's phone number based on the license plate information and sends the violation details via SMS. After receiving the violation notification, the vehicle owner must go to the local traffic police department to handle the matter within one month before the vehicle's annual inspection. Generally, if you suspect you have committed a violation, you can use 15 days as a benchmark. If no notification is received within 15 days, it is likely that no violation was recorded. Methods for Traffic Violation Queries: Traffic violation queries refer to checking motor vehicle violations of traffic regulations through online platforms or query terminals. There are five methods for vehicle violation queries: traffic branch terminal queries, vehicle violation website queries, phone queries, SMS queries, and mobile app queries. Website Query: You can search for "vehicle violation query" and enter your vehicle information to check. Phone Query: To inquire about violations, you can call local 114 (area code + 114) or 12580 for confirmation. Violations can only be processed at the location where they occurred or at the vehicle's registration authority. For on-the-spot violations, such as those directly caught by traffic police, they must be handled at the violation site. SMS Query: Open the SMS interface on your phone; enter "WZ" followed by your license plate number and color; send the message to 1062650001. Mobile App Query: Open the "Traffic Management 12123" app, select "Violation Query," and find unresolved violations to clear them.

19

1

Share

What Causes the BMW 5 Series to Burn Coolant?

Can the CFMoto 250NK use 92-octane gasoline?

Should Silicone Grease Be Applied When Changing Spark Plugs?

What Causes BMW ABS System Failure?

Can You Get a Driver's License Without Attending a Driving School?

Does the Equinox LTZ Version Have Heated Mirrors?

How Many Days Does It Usually Take to Receive a Notification for Running a Red Light?

Where is Scania's place of origin?

What is the function of the lane assist switch in the Geely Binyue?

Can You Continue Driving a Mercedes-Benz with Insufficient Tire Pressure?

What is the body weight of the Grand Commander?