How to Fold a Car Sunshade?

What is the wading depth of an unmodified Wrangler?

The maximum wading depth of an unmodified Wrangler is 125mm. The wading depth of a Wrangler is determined by the height of the vehicle's chassis, which is the ground clearance listed in the vehicle's parameter configuration table. Generally, the greater the ground clearance, the higher the chassis, and the higher the safety factor when passing through waterlogged roads. Therefore, in terms of safe wading depth, off-road vehicles and SUVs have obvious advantages. However, for most compact and small cars with low chassis, the position of the vehicle's air intake should be used as a benchmark when passing through waterlogged roads. If the air intake is below the water level when the Wrangler is wading, water will be sucked into the engine's cylinders. Since water cannot be compressed like air, it will cause severe damage to the engine's mechanical components (such as connecting rods, pistons, crankshafts, etc.). Therefore, the wading depth must not exceed the height of the engine's air intake. The height of the engine's air intake, and thus the maximum wading depth, can also be increased by installing a snorkel. If wading is unavoidable, the following safe and correct operations should be performed: Before the vehicle enters the water, always turn off the auto start-stop function to prevent the engine from automatically restarting after stalling in the water, which could cause severe damage if water enters the engine. Judge the underwater road conditions based on the passage of vehicles ahead and choose an appropriate entry point. Observe the path taken by other vehicles and follow their tracks at low speed, avoiding sudden acceleration or deceleration. On roads prone to water accumulation, observe warning water level markers, trees, and other reference points such as the wheels and doors of other vehicles to estimate the water depth before deciding whether to proceed. Know your vehicle's safe wading depth. If the water depth exceeds half the height of the tires or the engine's air intake, do not enter the water recklessly; choose an alternative route instead.

15

4

Share

Can a Self-Assembled Motorcycle Be Licensed?

Self-assembled motorcycles cannot be licensed. To be eligible for licensing, the motorcycle must have a certificate of conformity and a computer-printed special motor vehicle license plate. Additionally, there is no production entry in the official database, so under normal conditions, it cannot be licensed and thus cannot be legally driven on the road. If discovered by traffic police, the vehicle may be impounded, and the owner may face fines. Licensing requires an invoice and a certificate of conformity. The certificate of conformity is nationally networked, with one certificate per vehicle, similar to an ID card, containing all the vehicle's information. Only motorcycles produced by manufacturers with official motorcycle production qualifications will have a certificate of conformity. Motorcycle Licensing Process: Take the purchase invoice to the tax bureau to pay the vehicle purchase tax. Only after successful tax payment can the subsequent procedures proceed. Purchase compulsory motorcycle insurance from a legitimate insurance company. Visit a motor vehicle inspection station for an inspection. Bring all the required documents to the local vehicle management office. At the office, take a number and fill out a registration form. Submit your ID card, tax certificate, insurance policy, vehicle conformity certificate, invoice, and other documents to the traffic police for verification. The chassis number and engine number will be imprinted, and the vehicle will be photographed for inspection. Afterward, wait to select a license plate number, pay the administrative fee, receive a temporary license plate, and the official license plate will be mailed to your home.

17

3

Share

Are Subject 4 and Subject 1 the same?

Subject 4 and Subject 1 are not the same. Subject 1: The content of the motor vehicle driver's examination is divided into the examination of road traffic safety laws, regulations, and related knowledge. Subject 4: The examination of safe and civilized driving knowledge. Subject 4 mainly assesses the requirements for safe and civilized driving, knowledge of safe driving under complex conditions, etc. It has many similarities with Subject 1 but places more emphasis on assessing the driver's practical operational skills. Below are the introductions to Subject 1 and Subject 4: 1. Subject 1: Also known as the Subject 1 theory test or driver theory test, it is part of the motor vehicle driver's license assessment. The examination content includes the theoretical basis of driving, road safety laws and regulations, local regulations, and other related knowledge. The examination format is computer-based, consisting of 100 questions, with a passing score of 90 or above. 2. Subject 4: Also known as the Subject 4 theory test or driver theory test, it is part of the motor vehicle driver's license assessment. The examination paper consists of 50 questions, with questions mainly in the form of cases, pictures, animations, etc. The full score is 100, and a score of 90 is required to pass.

16

5

Share

Will Unpaid Traffic Fines Affect Driver's License Renewal?

Unpaid traffic fines indicate unresolved traffic violations, which will prevent you from passing the annual review and license renewal. You must settle the violations first. License renewal and annual review require meeting the following conditions: Holders of large passenger vehicle, tractor, city bus, medium passenger vehicle, or large truck driver's licenses must have no demerit points in the current scoring cycle. Holders of other permitted vehicle-type licenses must have fewer than 12 demerit points in the current scoring cycle. For holders of large passenger vehicle, tractor, city bus, medium passenger vehicle, or large truck driver's licenses with demerit points in the scoring cycle, as well as holders of other permitted vehicle-type licenses involved in traffic accidents resulting in fatalities with equal or greater responsibility (without license revocation), they must have completed the review education. The applicant must have no pending road traffic safety violations or traffic accidents. The applicant's physical condition must meet the driving license requirements. The driver's license must not be under legal seizure, detention, suspension, revocation, cancellation, or annulment. Renewal process: The driver must submit required materials to the vehicle management office at the license issuance location. The office will process the renewal within one working day upon approval.

16

5

Share

Will Water Drip Under the Car When Driving with the Air Conditioning On?

When driving with the air conditioning on, water may drip under the car. This water is condensate from the air conditioning system. During cooling, the temperature of the evaporator and the air ducts leading to the passenger compartment is very low, typically around 0~5°C. Water vapor from the outside air condenses on the pipes and housing of the air conditioning system at such low temperatures. If not drained properly, this can cause moisture around the air conditioning system (inside the dashboard) and corrosion of components. Below are the functions of a car air conditioning system: 1. Temperature Control: This is the primary function of car air conditioning. In summer, the cooling system produces cold air to lower the cabin temperature; in winter, except for large commercial vehicles that use independent combustion heaters, most vehicles utilize residual heat from the engine for heating. 2. Humidity Control: Humidity significantly affects passenger comfort. Cabin humidity should generally be maintained between 30% and 70%. Standard car air conditioning systems do not regulate humidity; only advanced luxury cars with integrated heating and cooling systems or ventilation systems can adjust humidity. 3. Airflow Control: The speed and direction of airflow greatly influence comfort. If air blows directly, the speed should be limited within a certain range when the temperature is suitable. The airflow speed can be adjusted based on passengers' living environment, age, health, and temperature preferences. 4. Air Purification: The quality of cabin air is crucial for comfort.

13

2

Share

Is It Illegal to Convert Naturally Aspirated to Supercharged?

Converting to a supercharger is illegal. A turbocharger consists of an intake side, an exhaust side, and bearings. The exhaust gases expelled after the engine's work drive the blades on the exhaust side of the turbocharger, which in turn, through the bearings, drives the blades on the intake side to increase the intake air volume and improve combustion efficiency. Therefore, modifying a turbocharger affects the engine. Below are the specific impacts: 1. Turbo Lag: Since the blades are driven by exhaust gases, when the engine speed is low and the exhaust gas volume is insufficient to drive the blades, it affects the efficiency of intake and exhaust. However, as long as the turbo size matches the engine displacement appropriately, this impact will not be too noticeable. Another impact is on the engine's lifespan, which depends on the boost pressure, peripheral configurations (fuel supply, ignition, cooling, ECU tuning, etc.), and the reinforcement of the engine block. If these aspects are well addressed, the impact will be minimal, with the most critical factor being the quality of the workmanship. 2. Performance Impact: There is also the impact on performance. Heat engines rely on combustion to perform work, with fuel and oxygen being two key factors determining the intensity of combustion. The function of a turbocharger is to increase the air volume (i.e., oxygen content) in the cylinder during combustion. As long as the fuel supply and ignition are properly matched, there will be a certain improvement in engine performance. Moreover, turbochargers utilize the kinetic energy of exhaust gases to work, which, from a physical perspective, is an excellent method to enhance work efficiency.

14

4

Share

How to Fold a Car Sunshade?

What is the wading depth of an unmodified Wrangler?

Can a Self-Assembled Motorcycle Be Licensed?

Are Subject 4 and Subject 1 the same?

Will Unpaid Traffic Fines Affect Driver's License Renewal?

Will Water Drip Under the Car When Driving with the Air Conditioning On?

Is It Illegal to Convert Naturally Aspirated to Supercharged?

What does the small wrench symbol mean in a Volkswagen?

Reasons Why the Airbag Light Stays On

What happens if the initial registration date on the insurance policy is different from the one on the vehicle license?

What is the boiling point of Shell antifreeze?