What is a Map Car?

Is the car's braking system front or rear wheel?

Automobiles utilize braking on both front and rear wheels, with the driving wheels typically applying greater braking force than the non-driving wheels. Here's additional information: 1. For front-wheel-drive vehicles like sedans, the front wheels provide primary braking while the rear wheels assist. The parking brake acts on the rear wheels. 2. The automotive braking system, also called the automotive stopping system, serves to: forcibly decelerate or stop moving vehicles as required by drivers; maintain stationary vehicles on various road conditions (including slopes); and stabilize speed during downhill driving. 3. Currently, most domestic automakers employ front-disc-rear-drum braking systems for medium and small production vehicles, though some models feature four-wheel disc brakes. Compared to drum brakes, disc brakes offer more advanced technology, lighter weight, superior heat dissipation, better braking performance, and enhanced adaptability to complex weather and road conditions.

13

5

Share

What to Do When the Car Still Rolls Despite the Handbrake Being Engaged?

Here are the reasons why a car might still roll despite the handbrake being engaged: 1. The brake clearance is too large, reducing the pressure of the friction pads against the drum or disc when the handbrake is applied. 2. The handbrake is not fully engaged. 3. If the car rolls only a short distance, it may indicate an issue with the engagement point between the handbrake and foot brake. 4. The slope is too steep, or the road surface is too smooth. Here are the solutions to prevent rolling: 1. If the car is stuck on a slope and starts to roll backward, the first thing the driver should do is stay calm and not panic. Quickly press the foot brake to stop the car, then gently pull the handbrake and slowly release the foot brake. It is best to keep the foot on the foot brake until the handbrake is confirmed to be securely engaged before releasing the foot brake.

8

1

Share

Is the original license plate automatically canceled after vehicle transfer?

After the vehicle is transferred, the original license plate will be automatically canceled. After the vehicle is transferred, the original license plate can be applied for retention within two years. The right to use the license plate will be retained after two years of transfer. This means that if the original license plate is not used within two years, the license plate number will be automatically canceled. After the vehicle is transferred, if you still want to keep the original license plate, you should go to the relevant department as soon as possible to apply the license plate number to your newly purchased vehicle. Only in this way can you continue to use the original license plate; otherwise, it will be automatically invalidated. To retain the original license plate, you also need to understand the conditions that must be met. For example, all traffic violation records of the original vehicle must be cleared, and the original license plate must have been used for more than one year. The original owner of a second-hand vehicle transfer needs to provide documents including the registration certificate, vehicle license, and ID card. The buyer needs to provide an ID card, and if they are from another city, a residence permit or temporary residence certificate is required. Vehicle transfer first requires a vehicle evaluation. The evaluation fee is generally 1%-2% of the evaluated vehicle price, and other fees include those for the license plate and vehicle license. The original vehicle's commercial insurance can be canceled (compulsory insurance cannot be canceled), or the insurance can be transferred to the buyer at the insurance company. Precautions for purchasing second-hand vehicles: Incomplete procedures. Complete procedures for second-hand vehicles include: vehicle registration certificate (or original purchase invoice), vehicle license, vehicle purchase tax payment certificate, road maintenance fee procedures, and compulsory insurance. If the vehicle registration certificate or vehicle license is missing, or if there are arrears in compulsory insurance or road maintenance fees, it will cause endless trouble for the buyer. Therefore, when purchasing a vehicle, if the seller cannot provide complete procedures, consumers should be particularly vigilant. Tampering with the odometer. Most consumers like to judge the condition of a vehicle based on the odometer, and sellers often take advantage of this psychology to tamper with the odometer. In fact, the odometer is not only an indicator of usage intensity but also a recorder for the maintenance and replacement of other vehicle parts. If the buyer performs maintenance based on the tampered odometer reading, it will bring a series of potential safety hazards. New paint covering 'external injuries'. When consumers choose second-hand vehicles, if the old vehicle has been repainted and there are signs of repair around the front face, rear, and A, B, and C pillars, the vehicle is very likely to have been involved in a major traffic accident. 'Tuning the heart' to raise the price. Many consumers often pay too much attention to the 'heart' of the car when buying a vehicle and neglect the health of the car body. Second-hand vehicle sellers take advantage of this psychology by replacing engine parts to make the vehicle's 'heart' appear younger, thereby raising the price.

11

5

Share

Why Does the New Car's Brake Make Noise?

Here are the reasons why a new car's brake may squeak: 1. Severe wear on the brake disc. If hard foreign objects get between the brake pad and the brake disc, it can cause abnormal wear on the brake disc. If the brake disc is excessively worn, you may hear a squeaking noise when braking. 2. Brake pad warning. Many people don't know how often brake pads should be replaced. In fact, there is no strict rule on mileage for replacement—just replace them when they become thin. Some brake pads have electronic warnings, while some lower-end cars use warning tabs. If the brake pad wear reaches the warning line, it will emit a squeaking alarm sound, indicating that immediate replacement is needed. 3. Use of low-quality or overly hard brake pads. If low-quality or overly hard brake pads are used, they may produce a squeaking noise when rubbing against the brake disc during braking. Therefore, it is essential to use high-quality brake pads when replacing them. 4. Sand or foreign objects between the brake pad and brake disc. During normal driving, it's inevitable to pass through some complex road conditions. Due to the unique design of disc brakes, sand and foreign objects may enter between the brake pad and brake disc, causing abnormal noises when braking.

3

0

Share

How Long Does It Take to Receive a Red Light Violation Notice?

After running a red light, the violation notification SMS 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. However, the notification does not equate to a violation; it merely serves as a capture alert. Whether it is ultimately deemed a violation will take 3-7 days to confirm. If it is indeed a violation, you will receive another SMS notification. For traffic violations captured by surveillance cameras, vehicle owners generally do not receive the violation SMS immediately. There is a delay, and the duration may vary. This is because after the electronic camera captures the violation, the relevant violation information needs to be transmitted through a dedicated channel to the traffic police management center, where it is compiled and then verified by the relevant traffic police department staff. Once 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 SMS, the vehicle owner must go to the traffic police department where the violation occurred to handle the matter within one month before the vehicle's annual inspection. Generally, if a vehicle owner suspects a violation, they can use 15 days as a benchmark. If no violation SMS is received after 15 days, it is likely that no violation was recorded. Traffic Violation Query Methods: Traffic violation queries refer to checking motor vehicle traffic management violations via the internet or query terminals. There are five ways to query traffic violations: traffic branch terminal queries, traffic violation website queries, phone queries, SMS queries, and mobile app queries. Website Query: Search for "vehicle violation query" and enter vehicle information to check. Phone Query: Call local 114 (area code + 114) or 12580 to confirm traffic violations. Violations can only be processed at the location of the violation or the vehicle's license plate issuance location. For on-the-spot violations, such as those directly caught by traffic police, they must be handled at the violation location. SMS Query: Open the SMS interface on your phone, type "WZ [license plate number] [plate color]," send it to 1062650001, and click send. Mobile App Query: Open the "Traffic Management 12123" app, select "Violation Query," and clear any unresolved violations.

4

2

Share

What Causes Engine Shaking When Cold?

Engine shaking during cold starts occurs due to incomplete combustion in the cylinders, resulting in insufficient vehicle power output, which leads to vibration. Below are additional details: 1. Before each engine start, keep the ignition key turned for about 3 seconds to allow the PP electronic throttle to perform adaptive learning while enabling the fuel system to build up oil pressure before engine ignition. This practice not only facilitates smoother engine starts but also reduces occurrences of EPC light illumination and idle shaking caused by a dirty throttle. 2. The coolant temperature sensor is one of the critical parameters for the ECU to determine engine operating conditions. If the engine cold-starts at -10°C but the sensor reports "20°C" to the ECU, the system will inject fuel based on 20°C conditions, leading to lean mixture and inevitable shaking.

10

0

Share

What is a Map Car?

Is the car's braking system front or rear wheel?

What to Do When the Car Still Rolls Despite the Handbrake Being Engaged?

Is the original license plate automatically canceled after vehicle transfer?

Why Does the New Car's Brake Make Noise?

How Long Does It Take to Receive a Red Light Violation Notice?

What Causes Engine Shaking When Cold?

What is the recommended mileage for the first maintenance of a new car?

Can C1 directly apply for A2?

What is the role of OBD in a vehicle?

What are the Three Filters in Car Maintenance?