What to Do If You Forget to Bring Your Driver's License When Stopped by Police?

What does the E gear in an automatic transmission car mean?

Automatic transmission E gear is the energy recovery mode, also known as the power-saving economy gear or snow gear. Its main function is to keep the engine speed low to save fuel consumption, and it is usually in the form of a button. The following is a detailed introduction to the gears of an automatic transmission car: 1. R gear (Reverse gear): When this gear is engaged, the hydraulic system reverse gear oil circuit is connected, causing the drive wheels to reverse for backward movement. When the vehicle is not completely stopped, do not forcibly shift to the "R" gear, as this may damage the transmission. 2. N gear (Neutral gear): When the neutral gear is engaged, the planetary gear system idles and cannot output power. 3. D gear (Drive gear): When the gear shift lever is in this position, the hydraulic system control device will automatically connect the corresponding forward gear oil circuit based on the throttle opening signal and vehicle speed signal. It can automatically shift up or down with changes in driving speed, achieving automatic transmission function. 4. P gear (Parking gear): It uses a mechanical device to lock the rotating part of the tire, preventing the car from moving.

9

5

Share

What is the difference between tubeless tires and tube-type tires?

Tubeless tires are marked with the word 'TUBELESS' on the tire surface, which indicates they are tubeless. If it's a tubeless tire, this marking will definitely be present; if not, it is a tube-type tire. Additionally, the valve of a tubeless tire has a rubber seal at the connection point with the rim, whereas tube-type tires usually have a metal valve directly connected to the rim. Below is additional information: 1. Tubeless tires: Tubeless tires are pneumatic tires without an inner tube, also known as 'low-pressure tires' or 'pneumatic tires.' They have high elasticity and wear resistance, along with good adhesion and heat dissipation properties. 2. Advantages: Puncture resistance and safety. The surface of a tubeless tire is made of high-quality rubber. After inflation, the surface tension increases, creating a certain pressure on the inner surface, which enhances the self-sealing ability of punctures. Once punctured, unlike ordinary tires where the air escapes instantly, tubeless tires maintain pressure for a certain period, ensuring safety during high-speed driving.

3

0

Share

Does Touching the Line in an S-Curve Result in Penalty Points?

Touching the line with the vehicle body in an S-curve does not result in penalty points. Below are the precautions and techniques for navigating curves in a car: Precautions for Turning in a Car: Do not make sharp turns when the engine is near the turning point. When the bumper aligns with the protrusion, quickly turn the steering wheel to the left or right to the maximum position. Avoid pressing the accelerator pedal. Observe whether you can proceed forward. If uncertain about the angle at the corner, you can stop and check in advance. Always pay attention to the movement of the body and changes in the steering wheel position. S-Curve Entry Techniques: When approaching the entrance of the curve, position the vehicle in the middle of the road. Upon entering the curve, keep the vehicle as close as possible to the straight line on the right. When the gap on the left side of the car's hood aligns with the right yellow line, steer to the left. When turning right at the first curve, steer to the right. Before entering the S-curve, do not look at the arrows on the ground. Position the entire vehicle in the middle of the S-curve and then proceed straight in.

4

5

Share

Will the Engine Light Come On If the Exhaust Fails?

If the exhaust fails, the engine light will come on. The oxygen sensor monitors the state of the engine's air-fuel mixture. When the mixture changes and causes excessive exhaust emissions, the control unit records the fault and illuminates the warning light to alert the driver. Exhaust Light Comes On After Refueling: If the exhaust emission warning light occasionally comes on after refueling, it is often due to substandard fuel quality, leading to incomplete combustion of the engine's air-fuel mixture. In such cases, it is advisable to avoid smaller gas stations when choosing where to refuel. Additionally, avoid refueling immediately after the gas station changes its oil supply. After refueling, you can add a high-quality fuel additive to improve fuel quality. Exhaust Light Stays On Continuously: If the exhaust emission light remains on continuously, a specialized diagnostic tool is needed to check the current fault codes stored in the engine. Based on the fault codes and the data from systems like the oxygen sensor, further troubleshooting is required. This is because any issues with sensors related to air-fuel mixture combustion, engine wiring, engine actuators (such as motors and solenoid valves), or the control unit can trigger the exhaust emission fault light.

17

2

Share

Are there cases of being photographed for speeding at a 20 km/h limit?

Generally, there are no cases of being photographed for speeding at a 20 km/h limit. Speed measurement is not allowed for a 20 km/h limit, but special circumstances cannot be ruled out. According to relevant regulations, mobile speed monitoring devices are generally not allowed to be set up on road sections with speed limits below 50 km/h (excluding 50 km/h). However, in special cases, speed monitoring devices can be set up after approval by the Municipal Public Security Bureau Traffic Police Detachment. Below are the relevant details: 1. Roads with speed limits below 50 km/h: Exceeding the speed limit by more than 10% but less than 20% results in a fine; exceeding the speed limit by more than 20% but less than 50% results in a fine; exceeding the speed limit by more than 50% but less than 70% results in a fine; exceeding the speed limit by 70% or more results in a fine. 2. Roads with speed limits between 50 km/h and 80 km/h: Exceeding the speed limit by more than 10% but less than 20% results in a fine; exceeding the speed limit by more than 20% but less than 50% results in a fine; exceeding the speed limit by more than 50% but less than 70% results in a fine; exceeding the speed limit by 70% or more results in a fine.

20

3

Share

Can a Car Pass Annual Inspection After Removing the Catalytic Converter?

A damaged catalytic converter affects exhaust emissions; during the annual inspection, if the exhaust emissions fail to meet standards, the vehicle will not pass the inspection. Below are the specific details about vehicle annual inspections: 1. Meaning of Annual Inspection: Vehicle annual inspection refers to a mandatory test for all vehicles that have obtained official license plates and registration certificates. It is equivalent to an annual "health check" for the vehicle according to the "Technical Conditions for Motor Vehicle Operation Safety." 2. Exemption Policy: Non-commercial small private passenger vehicles with 7 seats or fewer (including 7 seats) are exempt from on-site inspections for the first 6 years. However, the owner must still have the exhaust emissions tested within the specified period (usually every 2 years). After passing the emissions test, the owner must apply for an inspection compliance label at the vehicle management office, motor vehicle registration service station, or traffic police substation and affix it to the upper right corner of the front windshield. 3. Scope of the Exemption Policy: The 6-year exemption policy for non-commercial passenger vehicles has been in effect since September 1, 2014. Vehicles registered after September 1, 2012, are eligible for two exemptions; vehicles registered between September 1, 2010, and August 31, 2012, are eligible for one exemption; vehicles registered before August 31, 2010, must still undergo annual inspections according to the original regulations.

5

0

Share

What to Do If You Forget to Bring Your Driver's License When Stopped by Police?

What does the E gear in an automatic transmission car mean?

What is the difference between tubeless tires and tube-type tires?

Does Touching the Line in an S-Curve Result in Penalty Points?

Will the Engine Light Come On If the Exhaust Fails?

Are there cases of being photographed for speeding at a 20 km/h limit?

Can a Car Pass Annual Inspection After Removing the Catalytic Converter?

Is it a big deal to cross the yellow line when turning left?

What is the tire pressure for the CFMOTO 650GT?

Will there be any problems if the car is not driven for over a month?

What does it mean when the SVS light comes on in a gasoline car?