What is the method for self-repairing cracked and peeling car paint?

Why does a tire leak air without a puncture?

Tire leaks can occur due to poor repairs, aging rubber of the valve stem, or the valve core not being reset after checking tire pressure. These conditions can lead to slow air leakage. Tires naturally lose air over time because a perfect seal between the tire and the wheel rim is impossible. Factors like thermal expansion and contraction, as well as vibrations during use, cause very slow air leakage through the gaps between the rim and the tire. Here is some relevant information about tires: 1. Pay attention to the tire's expiration date: The sidewall of the tire has a four-digit number indicating the manufacturing date, with the first two digits representing the week and the last two the year. Generally, tires should not be used for more than 3 years or exceed 60,000 kilometers in mileage. 2. Monitor the sidewall: As tire rubber ages, deep cracks may appear on the sidewall. However, as long as the sidewall hasn't been impacted and the cords remain intact, the tire can still be used. The triangular marks on the tire sidewall can help locate a raised area in the tread grooves, indicating the actual wear limit of the tire. That value should be greater than 1.6 millimeters.

19

0

Share

How often should the spark plugs of Qashqai be replaced?

It is recommended to consider replacing the spark plugs of Qashqai after the mileage exceeds 40,000 kilometers. Under normal maintenance conditions, car spark plugs should be replaced after driving 40,000 to 60,000 kilometers. However, due to differences in brands and engines, it may vary. It is recommended to follow the user manual. The following standards can be referenced for maintenance replacement: platinum spark plugs should be replaced at 40,000 kilometers, ordinary nickel alloy spark plugs at 20,000 kilometers, and iridium spark plugs at 60,000 to 80,000 kilometers. Steps for replacing spark plugs: Open the hood, lift the plastic cover of the engine, remove the high-voltage distributor wires, and mark the position of each cylinder to avoid confusion. Use a spark plug socket to remove the spark plugs one by one. When removing them, check for leaves, dust, etc., on the outside and make sure to clean them thoroughly. Place the new spark plugs into the spark plug holes, hand-tighten them a few turns, and then use the socket to tighten them further. Install the removed high-voltage distributor wires in the ignition order and snap the cover back on.

14

5

Share

How to correctly install an electronic ETC?

The correct process for installing an electronic ETC is as follows: Purchase the ETC device, check if all components are complete, and review the installation manual. Determine the installation direction of the ETC device, with the solar panel facing outward. Peel off the adhesive backing of the device, align the solar panel with the vehicle's front windshield, and press firmly to ensure secure attachment. It is best to install the device at the top center of the vehicle's front windshield, ensuring it does not obstruct the driver's normal view. Once attached, it should not be removed and reattached. Finally, insert the ETC card to activate the device. Upon hearing a beep and seeing the indicator light, the device is activated. Here are some precautions for ETC installation: Avoid obstructing the driver's view. The best location is behind the rearview mirror: Many car models have windshields with a steep angle, which can reduce the driver's field of vision. Installing the ETC without considering this can increase blind spots. Installing it behind the rearview mirror on the right side helps avoid blocking the view. Do not interfere with charging: The ETC electronic tag consumes power but generally does not require charging or battery replacement, as it has a built-in solar panel for self-charging. Therefore, avoid installing it on blacked-out areas of the windshield or positions that might block the solar panel. Do not remove the device once installed: The adhesive has an anti-tamper button connected to a switch. When installed, the windshield presses this button in. If removed, the button pops out, triggering the switch and locking the device, requiring an ETC service point to unlock it. This prevents multiple vehicles from sharing one device. ETC usage notes: The ETC transaction sensing range is 8 meters. To avoid issues caused by a malfunctioning ETC device in the vehicle ahead, maintain a distance of at least 10 meters to prevent automatic payment for the wrong vehicle. The ETC lane recognition speed is 20 km/h; exceeding this speed may result in failed transactions. If using a debit card linked to ETC, insufficient balance can also cause payment failures.

12

2

Share

What are the differences between the Beidouxing and Beidouxing X5 engines?

The following are the relevant differences between the Beidouxing and Beidouxing X5 engines: 1. Price: The official price of the top-end Beidouxing is cheaper than that of the top-end Beidouxing X5. 2. Overall body: The body of the top-end Beidouxing is shorter than that of the top-end Beidouxing X5, and the wheelbase of the top-end Beidouxing is also shorter than that of the top-end Beidouxing X5. 3. Overall configuration: The top-end Beidouxing X5 and the top-end Beidouxing are comparable. 4. Power output: The top-end Beidouxing and the top-end Beidouxing X5 are the same. 5. Body dimensions: The latest top-end Beidouxing has a body length, width, and height of 3400(mm) x 1575(mm) x 1705(mm), with a wheelbase of 2335(mm). The latest top-end Beidouxing X5 has a body length, width, and height of 3664(mm) x 1610(mm) x 1722(mm), with a wheelbase of 2485(mm). Overall, the body of the top-end Beidouxing is shorter than that of the top-end Beidouxing X5, and the wheelbase of the top-end Beidouxing is also shorter than that of the top-end Beidouxing X5.

17

4

Share

Can ETC be installed without mounting it on the windshield?

ETC can be used without being stuck to the windshield. Installing ETC on the upper part of the windshield is to minimize obstruction of the driver's view and to ensure better recognition by the equipment at highway toll stations. If you don't want to install it on the windshield, try to place it in an open position where it can be seen through the windshield. For small cars, the ETC installation position is generally in the upper middle part of the front windshield, while for large vehicles like trucks and buses, the installation position is in the lower middle part. The appropriate installation position should be no lower than 1.2 meters and no higher than 2.5 meters, with an installation angle between 30 to 90 degrees. For vehicles with factory-installed or aftermarket explosion-proof film, which may affect the signal transmission of the microwave communication link, the ETC should be installed in the microwave window strip. Here are the precautions for installing ETC: Do not block the view; it's best to install it behind the rearview mirror: Many car models have windshields with a large rearward tilt, which reduces the driver's field of vision. If ETC is installed without considering this, it can increase the driver's blind spots. Installing it behind the rearview mirror on the right side can help avoid obstructing the view. Do not interfere with charging: The ETC electronic tag consumes power but generally does not require charging or battery replacement because it has a solar panel on the back that can charge itself. Therefore, during installation, avoid the blackened areas on the windshield and positions that may block the solar panel. Do not remove it arbitrarily once installed: The button in the middle of the adhesive is an anti-removal lever connected to a switch. After the electronic tag is installed, the windshield will press the anti-removal lever in. If the tag is removed arbitrarily, the lever will pop out and trigger the switch, locking the electronic tag and rendering it unusable. You will then need to visit an ETC service point to unlock it. This is designed to prevent multiple vehicles from sharing one device. When using ETC, note the following: The ETC transaction sensing range is 8 meters. To prevent issues caused by the ETC device of the vehicle in front malfunctioning, maintain a distance of more than 10 meters from the vehicle ahead to avoid automatic payment for the preceding vehicle. The ETC lane recognition speed is 20 kilometers per hour; driving too fast may result in failure to read the vehicle's device information and failed deductions. When using a debit card linked to ETC, insufficient balance may also cause deduction failures.

7

3

Share

What does the tire size 120/70-12 mean?

The tire size 120/70-12 indicates: 120 represents the tire section width in millimeters; 70 is the aspect ratio, which is the ratio of the tire sidewall height to the tire section width, with 70 representing 70%. Generally, tire aspect ratios range between 30% and 80%; 12 is the rim diameter in inches. In addition to the size, tires are marked with the following common data: Tire cord material: Represented by Chinese pinyin, such as M for cotton cord, R for rayon cord, N for nylon cord, G for steel cord, ZG for steel radial cord tires. Speed rating: Indicates the maximum speed a tire can carry a specified load under specified conditions. Letters A to Z represent certified speed ratings from 4.8 km/h to 300 km/h. Common speed ratings include: Q: 160 km/h; H: 210 km/h; V: 240 km/h; W: 270 km/h; Y: 300 km/h. Rim specification: Indicates the rim size compatible with the tire for practical use. Related information Tire lifespan: The wear life of a tire is between 30,000 to 50,000 kilometers. If the tire has not reached the wear limit or mileage but has been in use for 5 years or has developed significant cracks on the sidewalls, it should be replaced. Tire material: The main component of a tire is rubber. The maximum storage and anti-aging time for rubber, from natural latex to EPDM and nitrile, does not exceed 10 years. The average lifespan of various rubber products in use is 3-5 years.

18

4

Share

What is the method for self-repairing cracked and peeling car paint?

Why does a tire leak air without a puncture?

How often should the spark plugs of Qashqai be replaced?

How to correctly install an electronic ETC?

What are the differences between the Beidouxing and Beidouxing X5 engines?

Can ETC be installed without mounting it on the windshield?

What does the tire size 120/70-12 mean?

Is the Vehicle License Issued by the 4S Store When Buying a Car?

Can Traffic Police Detect Fake License Plates on Motorcycles?

What are the penalties for motorcycle license plate cloning in 2021?

What is the actual fuel consumption of the BMW 5 Series 525li?