Methods for Valve Leakage Without Removing the Cylinder Head

Should You Remove Rust or Replace the Door for a New Car with Rusty Doors?

For a new car with rusty doors, rust removal is quite convenient. Here are the specific details: 1. Light rust: If the rust is not severe, you can first use very fine water sandpaper dipped in water to gently sand away the rust spots. After completely cleaning it, apply a layer of primer to ensure the rust does not spread or worsen. For new scratches, you can clean them and directly apply primer. Generally, vehicles come with a small can of original paint; you can also buy a touch-up pen in advance. After the applied primer dries, sand it smooth with water sandpaper, then use the touch-up pen for coloring. Remember, applying primer has the effects of rust prevention and enhancing the adhesion of the topcoat. You can directly apply the touch-up pen. Small scratches or inconspicuous areas can be touched up using this method. 2. A handy tip: You can use toothpaste. Keep a tube of ordinary toothpaste in the car. When you notice small new scratches, apply a little. After rain or washing the car, it can simply act as a barrier, working fine in the short term. This is just a simple temporary solution. Ultimately, you will need to repaint for a thorough fix.

2

0

Share

Where is the production date of the battery?

Battery production dates are generally printed on the surface of the battery, represented by a series of numbers and letters. Since batteries are considered consumable parts under warranty, the warranty periods vary among different brands, typically ranging from 1 year or 20,000 kilometers, as specified in the battery manual. Taking the battery code 3KZ28A1 as an example: 1. The first digit is a number: usually one of the digits 0-9, representing the production year of the battery. In this case, '3' indicates the production year was 2013. 2. The second character is a letter: usually one of the 12 letters A, B, C, D, E, F, G, H, J, K, M, representing the production month, with each letter corresponding to months 1-12 in order. Here, 'K' represents the 10th month. 3. The third character is a letter: indicating the manufacturer of the battery. 'C' stands for Chongqing, while 'Z' represents Zhejiang. In this case, 'Z' means the battery was produced in Zhejiang. 4. The fourth and fifth digits are numbers: representing the production day. Here, '28' indicates the 28th day. 5. The sixth and seventh characters are a combination of letters and numbers: representing the batch number of the battery. 6. In summary: This battery was produced on October 28, 2013, in Zhejiang, and belongs to the first batch.

11

4

Share

Should ESP be Turned On or Off on Rainy Days?

In conventional weather conditions such as snow or rain, it is recommended to keep the ESP (Electronic Stability Program) turned on to avoid accidents. Below is extended information on when to turn off ESP: 1. When the vehicle is stuck in mud or sand: When driving in muddy conditions, the wheels have minimal traction, and ESP will activate to brake certain wheels. At this point, the engine torque will be continuously consumed by the wheels with lower rolling resistance, and ESP will limit the engine speed. Even if you floor the accelerator, it may still be difficult to free the vehicle. Therefore, turning off ESP is necessary to help the vehicle escape. 2. When climbing a slippery slope in rain or snow: When starting on snowy or waterlogged roads, especially on an incline, the wheels are highly prone to slipping. The system will detect wheel slip, and the ESP will restrict engine output. As a result, while most vehicles can climb the slope, activating ESP might prevent it from doing so. 3. When using snow chains: Installing snow chains can cause inaccuracies in signals from wheel speed sensors, lateral acceleration sensors, and other detection systems, affecting the normal operation of ESP. The system might continuously intervene or display error codes, making it better to turn it off. 4. During aggressive driving or drifting: When drifting, the wheels are in a state of slip most of the time, and ESP will intervene to limit the vehicle's slide, making it difficult to perform the drift. Turning off ESP allows for smoother and more precise drifting maneuvers.

19

0

Share

How long does it take for a new car to be transported to a 4S store?

It usually takes about 2 to 3 days for a new car to be transported to a 4S store. 4S is an abbreviation for the English initials of vehicle sales, spare parts, after-sales service, and information feedback. A 4S store is an automobile sales enterprise that integrates these four functions. Therefore, 4S stores can sell vehicles, and consumers can make purchases at 4S stores. For example, if parts need to be replaced, they can go to the store for maintenance and replacement. The third term refers to the fact that customers who consume at 4S stores can enjoy corresponding high-quality services. The fourth term means that car owners can provide feedback on some post-use vehicle information, which helps with the planning and development of subsequent vehicles. When picking up the car, visually inspect the body paint surface to check for scratches and wear. Observe the paint under sufficient sunlight to see if there is any color difference. Open the door and push it from several angles to let light shine from different directions to check if the sheet metal is even. Open the door and pay attention to whether the door opens and closes smoothly and whether the gaps between the door and the front and rear bumpers are consistent. Open the engine hood and check if the engine compartment is clean. If the vehicle has been stored for a long time or used, some areas may have obvious dust or stains. Check the vehicle's nameplate, which is located on the side of the driver's door or in the engine compartment. Pay attention to whether the manufacturing date is too far from the current date. If the time exceeds six months, the car is likely to be an inventory car or a test drive car.

12

4

Share

What is the battery model for Volkswagen Golf 7 key?

The battery model is CR2025. It is a lithium manganese dioxide battery, named according to the IEC standard. Among them: C- indicates the chemical battery system with lithium metal as the negative electrode and manganese dioxide as the positive electrode; R- indicates that the shape of the battery is cylindrical, if it is square, F is used instead; 20 indicates that the diameter of the battery is 20mm; 25 represents the height of the battery is 2.5mm. The nominal voltage is 3.0V, the endpoint voltage is 2.0V, and the rated capacity ranges from 140-170mAh. CR2025 usually has a lifespan of 5 years. If the manufacturer's production level is not high or quality control is poor, its lifespan will be greatly shortened. Domestic first-tier brand batteries can basically guarantee this lifespan. If the usage environment is ideal (sealed, room temperature, no moisture, etc.), its lifespan can be further extended to 8 years or even 10 years. The usage time of the vehicle remote key battery is closely related to the frequency of use. The more frequently it is used, the shorter the usage time will be. If the remote key battery runs out of power, you can directly use the mechanical key to open the vehicle and start the engine. The batteries used in car remote keys are button batteries, mainly three types: CR2016, CR2025, and CR2032. For the specific model used in each vehicle, the owner can refer to the battery model in the user manual for replacement. Button-type CR2016 battery: The usage rate of car key remotes is very high, and it is almost one of the most common car remote batteries. The battery voltage of this battery is 3V, and the general car key battery is powered by 9V, so every time the battery is replaced, three batteries need to be replaced. Examples include Guangben, Toyota, Volkswagen, Mazda, etc. CR2016 specifications: battery diameter 20mm, thickness 1.6mm. Button-type CR2025 battery: Its usage rate is much lower than CR2016. However, some car keys still use it. It is thicker than the 2016 model but has a relatively higher storage capacity. CR2025 specifications: battery diameter 20mm, thickness 2.5mm. This type of battery is also commonly used in audio remotes. Button battery CR2032: The voltage is also 3V, but the capacity is around 200mAh, so the thickness is twice that of CR2016. The 3V-CR2032 lithium manganese battery belongs to the lithium-manganese dioxide structure. The positive electrode material is chemically very stable manganese dioxide, the negative electrode material is lithium metal, and the electrolyte is a lithium battery. The main components of the electrolyte are ethylene glycol dimethyl ether, propylene carbonate, and lithium perchlorate. It is shaped like a button, hence the name button lithium battery or lithium manganese button battery. Button battery CR2450: Compared to the other three, it is thicker and larger, with a diameter of 24.5mm and a height of 5.0mm. The rated current value of CR2450 is 0.2mA, mainly used in low-power electronic products. Generally, the battery can provide an output current of 0.001mA to 5mA, a continuous output current of up to 15mA, and a flash output current of up to 30mA, meeting the requirements of most small electronic products for light emission, sound production, and radio frequency output.

2

5

Share

What does traffic violation code 1018 mean?

Violation code 1018 means: A motor vehicle is not driving within the motor vehicle lane. According to the "Road Traffic Safety Law of the People's Republic of China", the demerit points (deduction) are: 0 points; the fine amount is: 100 to 200 yuan; other penalties: verbal warning. Traffic violation codes consist of four to five digits, classified according to the general principles of the traffic law. The order from left to right is: the first digit is the behavior classification code, the second digit is the demerit point classification code, the third and fourth digits are the sequential code, and the fifth digit is the item number of the clause. The first digit: Behavior classification code, indicating the classification code in the Road Traffic Law; The second digit: Demerit point classification code, indicating the classification code for traffic violation demerit points; The third and fourth digits: Sequential code, indicating the order of the behavior within the same behavior classification. For example: 13035—"1" indicates motor vehicle behavior, the second digit "3" indicates 3 points will be deducted, and the following "035" indicates the fifth item of the third clause in the 3-point deduction category. Behavior classification code violation descriptions: Codes starting with 1 indicate motor vehicle traffic, e.g., 1003 Codes starting with 2 indicate non-motor vehicle traffic, e.g., 2002 Codes starting with 3 indicate pedestrian or passenger traffic, e.g., 3030 Codes starting with 4 indicate highway traffic, e.g., 4002 Codes starting with 5 indicate other regulations, e.g., 5005 Codes starting with 7 indicate implementation rules of provinces, autonomous regions, or municipalities directly under the central government, e.g., 7008 Codes starting with 8 indicate local regulations of cities (prefectures, autonomous prefectures, or leagues), e.g., 8606 There are four common methods for motor vehicle violation inquiries: Visit the office halls of traffic police branches in various districts and counties to query through touch-screen terminals; Log in to the external service website of the public security traffic management bureau of each city, find the vehicle violation inquiry section, enter the license plate number and vehicle engine number, and click to query; Call the inquiry hotline (area code + 114); Use the Traffic Management 12123 app client (V2.8.1B437 for iOS 15+ or V2.8.1B274 for Android 12+) to query. The violation of a motor vehicle not driving within the motor vehicle lane can be handled through this Traffic Management app client. After logging into the app, enter the violation handling business process, complete the handling, and make the payment.

11

2

Share

Methods for Valve Leakage Without Removing the Cylinder Head

Should You Remove Rust or Replace the Door for a New Car with Rusty Doors?

Where is the production date of the battery?

Should ESP be Turned On or Off on Rainy Days?

How long does it take for a new car to be transported to a 4S store?

What is the battery model for Volkswagen Golf 7 key?

What does traffic violation code 1018 mean?

How Many Hours Is Best for Charging a New Battery?

What are the reasons for unstable idle speed and easy stalling of a car?

What is the issue with 4000 RPM at 100 km/h?

Do electric vehicles need to pay purchase tax?