How to turn off the radio in BMW 1 Series?

Is Light Braking Required in School Zones for Subject 3?

Light braking is required in school zones for Subject 3. When passing through the designated braking area, it is essential to lightly brake to reduce speed and proceed slowly. If encountering pedestrians crossing the road, you must stop and wait. Locations requiring light braking in Subject 3: Proceeding straight through intersections: Due to the complexity of intersections, there may be vehicles or pedestrians crossing. Students should lightly brake in advance to reduce speed, ensuring the speed does not exceed 30km/h. Even if the light is green with no obstructing vehicles or pedestrians, lightly pressing the brake is mandatory. Failure to do so will result in immediate disqualification. Left or right turns: Whether turning left or right, turn signals must be activated in advance, followed by deceleration (some examinees may already be driving slowly but must still lightly brake before turning). Bus stops or school zones: Audio prompts are usually provided when passing bus stops. If no prompt is given, pay attention to roadside signs. Light braking is required when passing, proceeding slowly. If encountering students crossing the road after school, stop and wait. Crosswalks: Students must lightly brake to reduce speed when passing crosswalks. If pedestrians are crossing, stop and wait, ensuring the vehicle does not stop on the crosswalk. Avoid rushing or honking, as such uncivilized behavior will lead to immediate disqualification. U-turns or meeting oncoming vehicles: Deceleration is mandatory. For U-turns, shift to a lower gear (1st or 2nd). Without deceleration, high-speed U-turns will result in poor vehicle stability. The system typically issues instructions; if no oncoming vehicles are present, follow the procedure for meeting vehicles. Upon hearing the instruction, students should execute the deceleration operation.

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Will a 0.1 difference in tire pressure cause the car to pull to one side?

When the difference in tire pressure exceeds 0.1 bar, the car may start to pull to one side or sway. For vehicles driving on flat ground, a 0.1 bar difference doesn't have much impact. However, for high-speed driving, the effect becomes more pronounced. The impact force from collisions or going over speed bumps can double, with most of the force acting on the tires and suspension. Under normal conditions, when the car is cold, the front tires should have a pressure of 2.2-2.3 bar, and the rear tires 2.4-2.5 bar, which is within the normal range. However, some vehicles may have front tires at 2.4-2.5 bar and rear tires at 2.2-2.3 bar. The specific values should be based on the manufacturer's recommended tire pressure. Due to thermal expansion and contraction, in summer, the tire pressure can be adjusted 0.1-0.2 bar lower than the normal value, while in winter, it can be adjusted 0.1-0.2 bar higher. Car owners should regularly monitor their tire pressure, as both overinflation and underinflation can negatively affect driving. Continuing to drive with underinflated tires can make the steering wheel heavier, cause the car to pull to one side, accelerate tire wear, reduce tire lifespan, and increase fuel consumption.

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What is the purpose of the USB port in a car?

The USB port in a car is primarily used to utilize the vehicle's standard power supply, providing charging for DC-5V electrical devices via the USB interface or serving as a fixed power supply port for electrical equipment. Below is relevant information about the USB port: 1. Advantages of the USB port: The USB port, as a type of vehicle transmission cable, offers benefits such as fast data transfer, ease of use, support for hot-swapping, flexible connectivity, and independent power supply. It is typically a universal interface for devices like USB flash drives and MP3 players. 2. How the USB port works: The vehicle's internal power supply (DC-12V or DC-24V) is converted to DC5V, and then the DC-5V output is transferred to the corresponding electrical device via the standardized USB interface. Since different devices have varying power requirements, the power output of USB car chargers also differs significantly, mainly distinguished by the current capacity of the USB car charger.

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What are the effects of a missing front wheel inner liner?

When the front wheel inner liner is missing, it not only produces noticeable noise while driving but also affects the vehicle's aerodynamic resistance to some extent. Secondly, due to the absence of the inner liner, gravel and mud can easily splash onto the underside of the car body, thereby failing to adequately protect the chassis. Below is a related introduction: The fender, also known as the wing panel, is a type of cover used on motor vehicles and non-motor vehicles. It includes the front fender, front fender inner liner, front fender light, rear fender light, and radiator frame. The front fender helps prevent gravel and mud kicked up by the wheels from splashing onto the underside of the car body during driving, reducing damage and corrosion to the chassis. Therefore, the materials used must be resistant to weather aging and have good formability. Currently, many cars use plastic materials with a certain degree of elasticity for the front fenders, providing some cushioning effect and enhancing safety.

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How Serious Is the Problem of Driving Over Potholes at High Speed?

Driving over potholes at high speed can have the following impacts on a vehicle: 1. Impact on tires and rims: High-speed pothole encounters can easily cause tire bulging, deformation, or damage, and in severe cases, may even lead to tire blowouts or rim damage. 2. Impact on brake bearings: The instantaneous impact from high-speed pothole encounters may cause irreversible damage to the bearings within the braking system, leading to wheel looseness or regular abnormal noises during subsequent driving. 3. Impact on the vehicle body and electrical system: Severe vibrations can also cause varying degrees of deformation to the vehicle body, cracking or loosening of interior and exterior trims, and deformation of electronic circuit boards and connectors inside the vehicle, resulting in open circuits, poor connections, or short circuits.

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What Causes Car Shaking When Reversing?

Manual or automatic transmissions have different torque levels in different gears. The reverse gear has higher torque, which increases the engine load, making it normal for the car to shake more than in other gears. However, excessive shaking is abnormal. Below are relevant explanations: 1. When shifting into reverse gear, always fully depress the clutch to completely disconnect the engine and transmission's power output. It is recommended not to shift into reverse gear too violently to prevent severe gear grinding. 2. Since the power direction needs to change when the vehicle's reverse gear engages, always ensure the vehicle is completely stopped before shifting into reverse gear.

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How to turn off the radio in BMW 1 Series?

Is Light Braking Required in School Zones for Subject 3?

Will a 0.1 difference in tire pressure cause the car to pull to one side?

What is the purpose of the USB port in a car?

What are the effects of a missing front wheel inner liner?

How Serious Is the Problem of Driving Over Potholes at High Speed?

What Causes Car Shaking When Reversing?

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