What are the subjects for the driving test?

Does Rain Affect a Car Right After Waxing?

Rain definitely has an impact after waxing. It's important to know that rainwater is acidic and has a certain corrosive effect. Additionally, once the rainwater dries, it leaves behind many stains on the car, which are also harmful to the wax. In such cases, you should go to a car detailing shop to have the car washed thoroughly to remove all traces of rainwater. However, remember to inform the staff that you've just waxed the car, as after waxing, only clean water should be used for washing. Here are more related details: Precautions: If it's not raining, it's best not to wash the car immediately after waxing. Right after waxing, the wax hasn't fully adhered to the car's surface (wait until the wax hardens), so washing the car too soon can affect the wax. Moreover, before waxing, the staff at the detailing shop would have already cleaned the car once. A freshly waxed car body is smoother and has anti-static properties, making it generally more resistant to dirt, thus extending the time between washes. By the time the car needs washing again, the wax would have properly adhered.

12

3

Share

Why can't the car accelerate when driving at 120 km/h on the highway?

This situation is generally caused by the fuel system. It is necessary to check whether the fuel injector is clogged, which affects the fuel supply effect. Check the atomization effect, and use a fuel pressure gauge to measure whether the fuel pressure meets the standard. Generally, low fuel pressure, insufficient fuel pump supply in the system, damaged fuel pressure regulator, clogging, fuel filter issues, or overly lean air-fuel mixture can also lead to poor acceleration. Here is more related information: Precautions: At high speeds, the transmission will stay in a high gear, so the engine speed will not be too high. If the speed is 120 km/h, the engine speed will be around 2000 rpm. At this time, the engine will be in a low-speed, high-load condition. According to engine theory, low-speed, high-load is the most 'comfortable' working state for an internal combustion engine, with relatively high thermal efficiency, so there is no strong demand for cooling. On the contrary, if you frequently overtake in the city using low gears, the engine will often operate in a high-speed, low-load condition, with low thermal efficiency, which requires higher cooling performance.

14

3

Share

Is It Correct to Turn on Hazard Lights During Heavy Rain on Highways?

Whether to turn on hazard lights during heavy rain should be judged based on the actual situation. The criteria for judgment are visibility and lighting conditions, not simply whether it is raining heavily. Hazard lights should be activated when visibility drops below a certain level, as their purpose is to alert other drivers to take caution. On highways, hazard lights can be turned on when visibility is less than 100 meters. Here’s more relevant information: Hazard lights are generally unnecessary in urban areas. In fact, it’s important to distinguish between highway and city driving conditions. Urban roads typically have good lighting, so visibility is rarely severely reduced. Even during torrential rain, visibility in the city is unlikely to drop below 100 meters. Therefore, unless there are special circumstances, there’s no need to use hazard lights in urban areas. Moreover, city traffic is relatively complex, and using hazard lights may confuse following drivers about the intentions of the vehicle ahead. Thus, in urban driving, hazard lights are generally unnecessary.

19

0

Share

Where is the central locking control box located in the JAC Tongyue?

The remote control box for the central locking system in the JAC Tongyue is located under the hood, inside the engine compartment, near the battery at the upper left corner of the engine. To access it, open the driver's door of the JAC Tongyue RS, pull the hood release lever located on the left side of the driver's footwell, and lift the hood upwards. Use the support rod to secure the hood in place, ensuring it is firmly supported to prevent any hazards during operation. The central locking remote control box can then be found in this area. The remote control box is a command device that changes the wiring of the main or control circuit and adjusts the resistance value in the circuit according to a predetermined sequence to control the motor's start, speed adjustment, braking, and reverse functions. The central locking system, also known as the door lock actuator, primarily consists of a motor and transmission gears, with varying appearances. Its working principle involves the motor's positive and negative power conversion to complete the locking and unlocking process. When an unlock signal is received, the unlock relay engages, forming a current loop through the motor, causing the central lock to activate. Conversely, when a lock signal is received, another relay engages, reversing the current to form a loop and activate the central lock. The purpose of installing a central locking system in an anti-theft device is to control the vehicle's original central lock, achieving the goal of remote locking and unlocking.

1

3

Share

Where is the Jetta fan fuse located?

The Jetta radiator fan fuse is located under the cover panel to the lower left of the steering wheel. The car water tank generally refers to the car radiator, which is part of the car cooling system. The radiator in the engine water cooling system consists of three parts: the inlet chamber, the outlet chamber, the main plate, and the radiator core. The principle of the radiator fan is to increase the air circulation of the heating components, continuously dissipating heat through the airflow. Method for adding water to the Jetta car radiator: Turn the pressure cap counterclockwise. If a hissing sound is heard, wait until the sound disappears before opening it; Add an appropriate amount of coolant to the coolant expansion tank until the liquid level reaches between the MAX and MIN marks on the expansion tank; With the coolant expansion tank cap open, start the engine; After starting the engine, the coolant in the tank will slowly decrease. At this time, add an appropriate amount of coolant to the expansion tank until the liquid level reaches between the MAX and MIN marks on the coolant expansion tank; Reinstall the cap, ensuring the pressure cap is hand-tightened and fully seated.

18

5

Share

Will I definitely get points deducted for driving at 100 km/h in an 80 km/h speed-limited highway tunnel?

Points will be deducted. Driving at 100 km/h in an 80 km/h speed-limited zone on the highway is definitely considered speeding. If there are signs indicating a speed limit of 80 km/h on a particular section of the highway, drivers must not exceed 80 km/h. Below is more related information: Relevant laws and regulations: According to Article 78 of the "Regulations for the Implementation of the Road Traffic Safety Law of the People's Republic of China": Highways shall indicate the speed limits for each lane. The maximum speed shall not exceed 120 km/h, and the minimum speed shall not be lower than 60 km/h. On highways, the maximum speed for small passenger vehicles shall not exceed 120 km/h, for other motor vehicles shall not exceed 100 km/h, and for motorcycles shall not exceed 80 km/h.

17

0

Share

What are the subjects for the driving test?

Does Rain Affect a Car Right After Waxing?

Why can't the car accelerate when driving at 120 km/h on the highway?

Is It Correct to Turn on Hazard Lights During Heavy Rain on Highways?

Where is the central locking control box located in the JAC Tongyue?

Where is the Jetta fan fuse located?

Will I definitely get points deducted for driving at 100 km/h in an 80 km/h speed-limited highway tunnel?

What are the causes of sunroof leakage in the Audi Q3?

What are the reasons why the Audi Q3 is locked and cannot start?

What are the reasons for the high water temperature in Audi Q3?

Is the Audi Q3's four-wheel drive system full-time or on-demand?