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What is the correct way to use car air conditioning in summer?

1 Answers
DelLilliana
07/29/25 3:32pm
Summer car air conditioning usage methods are: 1. Open windows before turning on AC; 2. Direct vents slightly upward; 3. Avoid prolonged low-temperature settings. The functions of car air conditioning are: 1. To optimally regulate and control cabin temperature, humidity, air purity and airflow; 2. To provide passenger comfort, reduce travel fatigue, create better working conditions for drivers, and serve as crucial ventilation equipment for safe driving. Precautions for car AC usage: 1. Turn off AC during acceleration; 2. Avoid excessively low temperatures; 3. Properly adjust vent direction; 4. Don't immediately turn on AC after parking in sun; 5. Turn off AC before engine shutdown.
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What is the curb weight of the BMW 5 Series?

The curb weight of the BMW 5 Series is 1710Kg. Below is relevant information about the BMW 5 Series: 1. Model: The powertrain of the BMW 5 Series has been further enhanced. The top-tier 545i is equipped with a V8 engine from the 7 Series, delivering a maximum power of 245 kW/333 horsepower (at 6100 rpm) and a peak torque of 450 Newton-meters (at 3600 rpm). It has a top speed of 250 km/h and accelerates from 0 to 100 km/h in just 5.9 seconds. 2. Premium Quality: The domestically produced 5 Series is the most advanced luxury sedan manufactured in the country to date. The current generation of the 5 Series was introduced in 2004. Undoubtedly, the BMW 5 Series is one of the most outstanding series in automotive history, with its peak era beginning with the third-generation E34 (1988-1996). The current 5 Series is the third-generation product of the E34.
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What Causes the Abnormal Noise After a Car Drives Through Water?

Reasons for abnormal noise after a car drives through water: 1. Brake pads getting wet: If the water is not too deep and splashes onto the brake pads, it is normal to hear abnormal noise when braking. In this case, just drive normally until the water on the brake pads dries up. 2. Foreign objects stuck between the brake pads and calipers: If the water is not too deep, foreign objects like plastic bags or mud in the water can get stuck between the brake pads and calipers, causing abnormal noise when braking. This can be resolved by cleaning the brake pads. 3. Water entering the exhaust pipe: If the water is deep enough to enter the engine through the exhaust pipe, it can prevent the fuel and air mixture in the engine from burning properly, leading to abnormal noise. In this situation, the car should be moved out of the water immediately, and the engine should be cleaned. Otherwise, it may cause engine failure or even total engine damage.
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What maintenance items are required at 35,000 kilometers?

At 35,000 kilometers, replace engine oil and oil filter, replace air filter, clean oil passages, perform wheel alignment, and replace fuel filter. Below are the detailed maintenance instructions: 1. First maintenance: The first maintenance typically requires replacing engine oil and oil filter at 5,000 kilometers. At 10,000 kilometers, replace engine oil, oil filter, air filter, clean oil passages, perform lubrication system protection, and wheel alignment. At 15,000 kilometers, replace engine oil and oil filter. 2. Long-distance maintenance: At 20,000 kilometers, replace engine oil and oil filter, replace air filter, clean throttle body, clean fuel injectors, and clean oil passages. At 25,000 kilometers, replace engine oil and oil filter. At 35,000 kilometers, replace engine oil and oil filter, replace air filter, clean oil passages, perform wheel alignment, and replace fuel filter.
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How long is the time interval between scheduling Subject 2 and Subject 3?

The normal time interval between scheduling Subject 2 and Subject 3 is about 7 to 10 days. If the Subject 2 test of the motor vehicle driver's license is not passed, the scheduling time for Subject 3 will be extended by 7 to 10 days. The Subject 2 and Subject 3 tests are very important examinations for obtaining a motor vehicle driver's license, each with five test attempts. Relevant information about the driver's license test is as follows: 1. Introduction: The driver's test is a qualification examination organized by the Vehicle Management Office of the Public Security Bureau. Only by passing the driver's test can one obtain a driver's license and legally drive motor vehicles. 2. Content: The motor vehicle driver's test content is divided into the Subject of Road Traffic Safety Laws, Regulations, and Related Knowledge Test, the Subject of Site Driving Skills Test, and the Subject of Road Driving Skills and Safe and Civilized Driving Common Sense Test.
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Where is the body module located in the Envision?

The Body Control Module (BCM) is located inside the cabin, beneath the center console behind the floor operation panel. The front passenger side footrest needs to be removed for access. Below are the relevant details: 1. Powertrain: The Envision Plus is equipped with a 2.0T turbocharged four-cylinder engine featuring variable cylinder technology. A highlight of the new model is the standard 48V mild hybrid system across all variants, with the engine delivering a maximum power output of 237 horsepower and 350 Nm of torque. 2. Interior: Maintaining Buick's signature premium interior quality, it introduces a newly designed 10-inch HD touchscreen to enhance technological sophistication. The vehicle also features front-row multifunction seats, adjustable-angle sliding rear seats, a dual-opening oversized center storage console, heated steering wheel, and a two-piece oversized panoramic sunroof.
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What is the difference between genuine leather and synthetic leather in the BMW 5 Series?

BMW 5 Series genuine leather and synthetic leather have the following differences: 1. Appearance: Genuine leather has no base layer, while synthetic materials have a base layer. Genuine leather has fine pores. When you press the softer part with your thumb, many small, uniform patterns will appear around your thumb, and these patterns disappear when you lift your thumb, indicating genuine leather. Synthetic materials may either have no patterns or show coarse patterns that do not disappear when the thumb is lifted, indicating that the grain layer on the surface has separated from the underlying mesh layer. 2. Smell: The cross-section of genuine leather is composed of irregular fibers. After scraping off some fibers with a fingernail, the cross-section shows no obvious change. Genuine leather has irregular textures in different areas and emits a slightly fishy odor when smelled. In contrast, synthetic leather has a plastic or rubber smell, with uniform textures in all areas. Laminated leather, which involves attaching a synthetic surface layer to the loose fibrous layer of natural leather's inner side, cannot be called "genuine leather" but is rather a composite leather using the inner layer of natural leather as a base.
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