How to Use the Navigation System in BMW 3 Series?

What are the differences between GL4 and GL5 gear oils?

GL4 and GL5 gear oils are introduced as follows: 1. Introduction 1: First of all, GL-4 grade is a medium-load gear oil, suitable for differential gears, transmission gears, and steering gears, while GL-5 is a heavy-load gear oil, suitable for differential gears and rear axle gears that operate under particularly harsh conditions. 2. Introduction 2: Compared with GL-4 grade gear oil, GL-5 grade gear oil contains more sulfur, almost half more acidic, so its corrosiveness is naturally stronger. In terms of price, since GL-5 gear oil is one grade higher than GL-4, it is naturally more expensive. However, some friends have a misconception that using more expensive gear oil will be beneficial for the car.

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What is the method for beginners to brake when driving?

New drivers should follow these braking methods: 1. Release the brake once before the vehicle comes to a complete stop; 2. Press the brake pedal firmly during emergency braking; 3. Apply gentle braking over long distances; 4. Reduce speed and utilize engine braking when turning. The braking system consists of a vacuum booster pump, master cylinder, wheel cylinder, brake pads, and brake discs. Brake maintenance methods include: 1. High-temperature protection to prevent corrosion in the braking system, avoid brake pad seizure due to high temperatures, and eliminate brake squeal; 2. Clean brake discs, drums, and any components from oil stains, dirt, and friction dust to ensure proper heat dissipation; 3. Regularly replace brake fluid; 4. Periodically check the thickness of brake pads or shoes.

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When to Use ECON Mode?

ECON mode enables the vehicle to enter a low-carbon and eco-friendly driving mode, which delivers significant fuel-saving effects under gentle driving styles. If you find such driving experience acceptable during usage, it is recommended to keep the ECON button activated all-weather. Here is more information about ECON: 1. Simply pressing the ECON button assists drivers in improving driving habits, further enhancing fuel efficiency while ensuring a smooth and enjoyable driving experience. 2. ECON effectively controls unnecessary fuel consumption caused by sudden throttle inputs by regulating valve opening/closing, and intelligently adjusts refrigeration conditions to keep the air conditioning in an energy-saving state, thereby reducing engine energy consumption. This achieves true harmony between driver and vehicle, ushering in a new era of environmental protection.

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Tips for Curve Driving in Subject 2 of the Driving Test

Tips for curve driving in Subject 2 of the driving test are as follows: 1. Avoid stopping: When entering the curve, pay attention to the position of the front of the car, try to keep the outer front tire close to the right edge of the curve, judge the distance from the edge through the rearview mirror to avoid crossing the line, and move forward in first gear with the clutch partially engaged. The speed can be slowed down, but the car must not stop. During the movement of the car, observe the left and right rearview mirrors to control the distance from the edge. 2. Pay attention to the position of the front of the car: When exiting the curve driving test area, align the front of the car with the exit, straighten the direction, and continue driving to complete the curve driving.

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Where is the car air conditioning temperature sensor located?

In-car air conditioning temperature sensors are typically installed under the dashboard. Below are detailed introductions to components of the automotive air conditioning system: 1. Air conditioning pressure sensor: Usually installed after the dryer, it detects the hydraulic pressure of liquid refrigerant flowing through the expansion valve. Three wires: detect high and low pressure. When refrigerant leaks and compressor oil loss occur after a collision, to prevent compressor damage from oil starvation, it immediately cuts off compressor power upon detecting low pressure. When high pressure is detected, it reduces compressor power to avoid wasted work. 2. Air conditioning temperature sensor: Generally housed in the temperature sensing bulb, it functions as the evaporator temperature sensor. When cooling reaches a certain level, it shuts down the compressor to prevent frosting and eventual ice blockage from further refrigeration.

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What Causes the Car Not to Move When in Gear?

Car not moving after shifting gears is a comprehensive functional failure of the vehicle. Below are relevant details about gear shifting: 1. Introduction: Gear shifting is the abbreviation for "gear lever operation method," referring to the driver's psychological and physiological movements to continuously adjust the gear lever position based on road conditions and vehicle speed changes. 2. Function: Gear shifting can alter the car's speed. 3. Technical requirements: The technical requirements for gear shifting can be summarized into eight words: timely, correct, smooth, and swift. (1) Timely: Master the appropriate shifting timing, neither upshifting too early nor downshifting too late. (2) Correct: The coordination among the clutch pedal, accelerator pedal, and gear lever must be accurate and harmonious, with precise positioning. (3) Smooth: After engaging a new gear, release the clutch pedal promptly and smoothly. (4) Swift: Actions should be quick to minimize shifting time, reduce kinetic energy loss, and lower fuel consumption.

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How to Use the Navigation System in BMW 3 Series?

What are the differences between GL4 and GL5 gear oils?

What is the method for beginners to brake when driving?

When to Use ECON Mode?

Tips for Curve Driving in Subject 2 of the Driving Test

Where is the car air conditioning temperature sensor located?

What Causes the Car Not to Move When in Gear?

What Causes High Temperature in the Engine Radiator?

What are the reasons for abnormal noise when pressing the car accelerator?

What Does the Engine Lubrication System Consist Of?

What are the reasons for a motor vehicle lacking power?