What Causes Engine Resonance for Over Ten Minutes When Cold?

What Are the Impacts of a Locked Driver's License?

A locked driver's license prohibits the holder from driving on the road. Otherwise, traffic police may impose fines, as a locked license is equivalent to an invalid one. The vehicle owner needs to bring their driver's license to the issuing vehicle management office (or the nearest traffic police station) and request assistance from the officer at the violation handling window to inquire about the reason for the "lock." After addressing the issue accordingly, the license can be "unlocked." Situations where the Traffic Management 12123 app shows a locked status include: 1. Initial license acquisition: If it's the first time obtaining a driver's license and the license hasn't been collected from the vehicle management office, registering and logging into the Traffic Management 12123 app to check the license status may show it as locked. This is normal and doesn't require any action. 2. Pending update: Sometimes, even after collecting the driver's license, it may still show as locked. This requires waiting for the Traffic Management 12123 platform data to update before it displays as normal. 3. Lock due to violations: (1) For Class A or B driver's licenses, if there are violation records within the scoring cycle and the license holder fails to attend the annual review after the cycle ends, the license may show as locked. Attending relevant training sessions is necessary to unlock it. (2) If there are unresolved violations or traffic accidents, the license may also show as locked. Paying all fines and receiving corresponding penalties is required before the license can be released from suspension. (3) During periods when the license is legally canceled, detained, or revoked, it may also be locked. The holder must wait until the penalty period ends and then complete the necessary procedures to unlock it. (4) If the holder has no violations and it's not their first time obtaining a license, but the license status shows as locked upon checking, they should promptly consult the vehicle management office staff. It's possible that someone else has fraudulently used their license.

18

3

Share

Reasons for Feeling Vibration in the Volkswagen Lamando at Idle Speed While Sitting Inside the Car

Reasons for feeling vibration in the Volkswagen Lamando at idle speed while sitting inside the car include excessive engine carbon buildup, among others. Below are detailed explanations for the vibration felt in the Volkswagen Lamando at idle speed while sitting inside the car: 1. Main Causes: The vibration felt in the Volkswagen Lamando at idle speed while sitting inside the car is primarily caused by eight main reasons: excessive engine carbon buildup, ignition system issues, unstable fuel pressure, failure of the coolant temperature sensor, improper air-fuel mixture, dirty air flow meter, EGR (Exhaust Gas Recirculation) problems, and poor fuel quality. 2. Solutions: Clean the fuel system and check the idle speed motor for carbon buildup, cleaning it if necessary; if the spark plugs have excessive carbon buildup, they can be removed and cleaned, or replaced if needed; for vibration issues caused by unstable fuel pressure, identify leaks in the fuel supply system and replace the corresponding components if necessary.

9

4

Share

What is the ideal tire pressure for car tires?

Generally speaking, the normal tire pressure range for car tires is between 230-250kpa. However, the specific recommended tire pressure should be based on the manufacturer's suggestion, which can usually be found in the vehicle's user manual, on the label near the driver's door (B-pillar), in the drawer next to the driver's seat, or on the fuel tank door. Below is relevant information about tire pressure: 1. Standard tire pressure varies depending on the type of tire and the vehicle model. Different models have different weights, heights, and tire sizes, thus requiring different tire pressures. The standard tire pressure for regular tires is 240kpa-250kpa, while reinforced tires have a recommended pressure of 280kpa-290kpa. 2. The tire pressure for cold tires and hot tires also differs, with hot tires having about 20kpa higher pressure than cold tires. The manufacturer's recommended value refers to the cold tire pressure. The tire pressure for cold tires is around 230kpa-250kpa, but the exact value should be based on the pressure marked for each specific vehicle.

19

1

Share

What is the National Standard Level of National V (National 5)?

National V (National 5) belongs to the National 4 vehicle category, meaning it meets the National 5 standard. Below are detailed introductions regarding National 4 and National 5 standards: 1. National 4: The sulfur content limit in National 4 standard gasoline is 150mg/kg. The National 4 emission standard is the fourth phase of China's national standards for motor vehicle pollutant emissions. It controls and reduces vehicle emissions to below specified levels through the application of technologies such as improved catalytic converter active layers, secondary air injection, and exhaust gas recirculation systems with cooling devices. 2. National 5: The sulfur content limit in National 5 standard gasoline is 50mg/kg. The National 5 emission standard is equivalent to the Euro V standard, which was officially implemented in Europe starting from September 1, 2009. In 2012, Beijing planned to implement the National V standard. Once fully implemented, vehicles that do not meet this emission standard would not be allowed to be sold in Beijing. To support the implementation of the National V emission standard, Beijing also planned to further improve fuel quality to align with the National V standard.

19

0

Share

How to Check Vehicle ETC Records?

To check vehicle ETC records, the method is as follows: The vehicle owner logs in to the Su Tong company website, modifies the password via SMS verification (the username is the 20-digit Su Tong card number, the initial password is the last 6 digits of the Su Tong card account, which can be queried by calling the 96011 hotline), and then logs in with the card number and password to check the consumption records of the past six months. ETC Working Principle: Through the onboard electronic tag installed on the vehicle's windshield, dedicated short-range communication is established with the microwave antenna in the ETC lane at the toll station. Computer networking technology is used to perform background settlement processing with the bank, thereby achieving the purpose of vehicles passing through highway or bridge toll stations without stopping to pay tolls. ETC Usage Precautions: The ETC transaction sensing area is 8 meters. When encountering a vehicle in front that has stopped, to prevent the ETC device failure of the front vehicle or the absence of an ETC device, maintain a distance of more than 10 meters from the front vehicle to avoid automatic sensing and paying for the front vehicle. The recognition speed for ETC lane passage is 20km/h. If the speed is too fast, the vehicle device information cannot be read, which will also lead to fee deduction failure. Unauthorized disassembly or movement of the OBU device, or detachment or loosening of the ETC electronic tag, will cause the electronic tag to fail. It can be sent to the bank where the ETC card was issued or the highway service office for testing. For non-manual loosening or detachment, only reactivation is needed. When using a debit card bound to ETC, insufficient balance will also cause fee deduction failure. Follow the guidance of on-site staff to go to the manual MTC lane and use cash or card for passage. Excessive thickness of the car windshield can lead to poor sensing. This is especially important for vehicles that have had their windshields replaced after accidents or for those who have modified their front windshields.

16

1

Share

How Many Stages Are There in Autonomous Driving?

Six stages, categorized from L0 to L5 levels of autonomous driving technology. Regarding the classification of autonomous driving, there are currently two globally recognized classification systems in the automotive industry, proposed by the National Highway Traffic Safety Administration (NHTSA) and the Society of Automotive Engineers (SAE). Below is an introduction to the six stages of autonomous driving: 1. L0 No Automation: There are no autonomous driving functions or technologies, and the human driver has absolute control over all vehicle functions. The driver is responsible for steering, acceleration, braking, and observing road conditions. Any driving assistance technologies, such as existing forward collision warning, lane departure warning, automatic wipers, and automatic headlight control, although somewhat intelligent, still require human control of the vehicle, so they all fall under L0. 2. L1 Driver Assistance: The driver is still responsible for driving safety but can delegate partial control to the system. Certain functions can be automated, such as common adaptive cruise control, emergency braking assistance, and lane keeping. The characteristic of L1 is that it involves only a single function, and the driver cannot simultaneously refrain from using both hands and feet. 3. L2 Partial Automation: The human driver and the vehicle share control. The driver can refrain from operating the vehicle in certain preset environments, meaning both hands and feet can be off the controls, but the driver must remain on standby, responsible for driving safety and ready to take over control at any moment within a short time. For example, combining ACC and LKS to form a following function. The core of L2 is not about having more than two functions but about the driver no longer being the primary operator. 4. L3 Conditional Automation: Automatic control is achieved under limited conditions, such as on preset road sections where the autonomous driving system can fully handle the vehicle's operation. However, in emergencies, the driver may still need to take over at certain times but with sufficient warning, such as when approaching a road construction area. L3 will liberate the driver, meaning they are no longer responsible for driving safety and do not need to monitor road conditions. 5. L4 High Automation: Autonomous driving can be highly automated under specific road conditions, such as in closed campuses, highways, urban roads, or fixed routes. Under these restricted conditions, the human driver does not need to intervene at all. 6. L5 Full Automation: There are no restrictions on driving conditions, and the vehicle can automatically handle various complex traffic situations and road environments. It can travel from the starting point to the destination without human assistance, requiring only the start and end points. The vehicle is fully responsible for driving safety, completely independent of driver intervention, and not limited to specific roads.

3

4

Share

What Causes Engine Resonance for Over Ten Minutes When Cold?

What Are the Impacts of a Locked Driver's License?

Reasons for Feeling Vibration in the Volkswagen Lamando at Idle Speed While Sitting Inside the Car

What is the ideal tire pressure for car tires?

What is the National Standard Level of National V (National 5)?

How to Check Vehicle ETC Records?

How Many Stages Are There in Autonomous Driving?

What to Do If You Didn't Swipe Your ETC Card When Exiting the Highway?

How to Check for Clutch Failure?

Is It a Problem If the Car's Undercarriage Gets Scraped?

How to Shift from First Gear to Second Gear in a Car?