What Causes the Car to Shake When Braking?

How many seats can an A2 license drive for passenger vehicles?

According to national traffic regulations, an A2 driver's license can operate passenger vehicles with up to 19 seats. Additional information: A2 driver's license: The basic vehicle type for A2 is a tractor. It also permits driving heavy and medium-sized full trailers, semi-trailer combinations, as well as B1, B2, C1, C2, C3, C4, and M class vehicles, provided the seating capacity is fewer than 19 seats. Passenger vehicle capacity classification: Based on overall structure, passenger vehicles can be divided into single vehicles and articulated vehicles. Single vehicles are the basic type, categorized by gross vehicle weight or seating capacity into large, medium, small, and mini. Large vehicles have a length ≥6m or seating capacity ≥20 persons (variable seating counts are determined by the upper limit). Medium vehicles are < 6m long with 9-20 seats. Small vehicles are < 6m long with ≤9 seats.

107

Share

What is the reason for the clicking sound when the one-touch start fails to ignite?

The reasons for the one-touch start failing to ignite with a clicking sound are: the car battery is low on power and cannot drive the starter; the starter is faulty and cannot drive the engine to start; the starter electrical components are faulty and need to be inspected and repaired at a repair shop. Here is some related information: One-touch start: The one-touch start device in a car is part of smart car technology, a button device that simplifies the ignition process and can also turn off the engine. Unlike traditional mechanical key ignition methods and conventional starting procedures, the one-touch start allows you to start or turn off the engine by simply pressing the one-touch start button. One-touch start functions: automatic door locking; automatic window closing; automatic anti-theft; one-touch start; one-touch shutdown; automatic door locking before driving; automatic unlocking when parking and turning off the engine; trunk opening function.

105

Share

What does the flashing of the direction light at the rear of the car indicate?

When the direction light at the rear of the car is on, it indicates that the car is about to turn. Here are the relevant details: Turn signal: 'Right' is up, 'Left' is down. Generally, turning the signal up (clockwise) indicates a right turn, and turning it down (counterclockwise) indicates a left turn. This design is in line with human perception and operational thinking. When overtaking, first turn on the left turn signal and then the right turn signal. According to regulations, overtaking must be done from the left side, so the left turn signal should be activated first. After overtaking, when returning to the original lane, the right turn signal should be activated. Precautions for car turning: When turning, the car's speed should be slow, and the steering wheel should not be turned too sharply to avoid excessive centrifugal force causing the car to skid. If the car skids, immediately release the accelerator pedal and turn the steering wheel toward the side of the skidding rear wheel. Once the car resumes straight driving, straighten the steering wheel and continue driving.

109

Share

Can the horn be sounded after the car is turned off?

Car horn can still sound after the engine is turned off. Relevant information: Car horn: The horn is the audio signal device of a car. During driving, the driver emits necessary audio signals as needed and regulations to warn pedestrians and attract attention from other vehicles, ensuring traffic safety, while also being used for urging and transmitting signals. Working principle: The car electric horn produces sound through the vibration of a metal diaphragm. The car electric horn consists of an iron core, magnetic coil, contacts, armature, diaphragm, etc. When the driver presses the horn switch, current passes through the contacts to the coil, which generates magnetic force to pull down the armature, forcing the diaphragm to move. The movement of the armature causes the contacts to open, interrupting the current and causing the coil's magnetic force to disappear. The diaphragm, under its own elasticity and the action of the spring plate, returns to its original position along with the armature, the contacts close the circuit again, current flows through the contacts to the coil to generate magnetic force, repeating the above action.

113

Share

What are the consequences of continuing to drive with an overheating engine?

The consequences of continuing to drive with an overheating engine are: decreased lubrication capability of the engine oil, leading to increased wear on moving parts; damage to pistons and cylinders, with severe cases causing cylinder scoring, grooves on the cylinder surface, reduced engine power, increased fuel consumption, and oil burning; damage to surrounding engine components such as timing chain guides and tensioners; and potential engine self-ignition. Below is a related introduction: Temperature Gauge: The temperature gauge is used to indicate the temperature of the coolant inside the engine. The gauge ranges from C to H, where C represents 60 degrees Celsius. When the needle points to C, it means the coolant has reached 60 degrees. The red H mark indicates 110 degrees, and if the needle enters the red zone, it signifies the engine is overheating. Radiator: The car radiator, also known as the heat exchanger, is a key component of the car's cooling system. Its function is to dissipate heat. The coolant absorbs heat in the water jacket, flows to the radiator to release the heat, and then returns to the water jacket to complete the cycle, thereby regulating the temperature. It is an integral part of the car engine.

118

Share

What are the reasons for a vehicle not starting after wading through water?

There are three main reasons why a vehicle may fail to start after wading through water: water entering the cylinders through the engine's intake system, water entering the exhaust pipe, and short circuits caused by the electrical system being submerged. Below are the relevant details: Vehicle breakdown: The primary reason for a vehicle breaking down in water is water entering the exhaust pipe, though in some cases, electrical circuit damage may also occur. Once the vehicle breaks down, it is crucial not to attempt to start it again, as this could lead to water entering the intake manifold and damaging the valves, or in severe cases, causing the engine to be irreparably damaged. Instead, the vehicle should be immediately towed to a 4S shop for professional handling. The 4S shop will inspect potentially problematic components such as the spark plugs and proceed with necessary repairs before attempting to start the engine. Car insurance: Car insurance is mainly divided into two categories: basic insurance and additional insurance. Additional insurance cannot be purchased independently; it must be added to basic insurance (such as third-party liability insurance, vehicle damage insurance, and compulsory traffic liability insurance). Additional insurance includes comprehensive theft insurance, standalone glass breakage insurance, vehicle downtime loss insurance, spontaneous combustion insurance, and vehicle water ingress insurance, among others.

104

Share