What brand is Jianghuai Volkswagen?

What Causes the Abnormal Noise When Accelerating with AC On?

When accelerating with the air conditioning on, the car may produce a humming noise. The specific reasons are as follows: 1. Insufficient vehicle power: Generally, when driving at too low a speed with too high a gear, occasionally pressing the accelerator may cause a humming noise accompanied by overall vehicle vibration. This is a clear signal that the gear is too high, the transmission ratio is too small, and the engine torque is insufficient for acceleration, leading to unstable engine speed and overall vehicle vibration. If the air conditioning is on, the compressor will consume power, diverting part of the engine's output energy to the AC system, which can result in noticeable power shortage during acceleration and cause the engine to produce a humming noise. 2. Engine fan operation: Turning on the AC increases the engine load, causing the engine temperature to rise quickly. To dissipate heat from the AC system, the vehicle's cooling fan will activate. The fan's operation generates significant noise, which, combined with the engine's sound, can be heard as a humming noise in the cabin. 3. AC damage causing abnormal compressor operation: If the AC compressor is internally worn or contains foreign objects, its rotation under the belt's drive may become irregular. When the AC is on, abnormal compressor rotation can definitely cause unusual noises in the vehicle.

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What are the differences between the Brilliance BMW 5 Series and the imported BMW 5 Series?

The biggest difference between the imported BMW 5 Series and the Brilliance BMW 5 Series is that the Brilliance BMW 5 Series has a lengthened body and wheelbase. The following are the differences between the imported BMW 5 Series and the Brilliance BMW 5 Series: 1. The Brilliance BMW 5 Series has a longer wheelbase, providing more rear-seat space, and the car's configurations have been increased. 2. The imported BMW and Brilliance BMW can be distinguished by the badges at the rear of the car—the Brilliance BMW has the words 'Brilliance BMW' on its rear. 3. The Brilliance BMW has a slightly higher chassis, while the imported BMW's chassis is a bit lower, as the imported BMW is more sport-oriented and designed with a sportier feel. 4. In terms of interior, the Brilliance BMW offers only one option, while the imported BMW provides two choices, catering to more diverse preferences. 5. The engine of the imported BMW 5 Series is purely imported from Germany, whereas many components of the Brilliance BMW 5 Series' engine are processed and procured domestically.

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Why is there resistance when shifting gears in a car?

The reasons for resistance when shifting gears in a car are as follows: 1. Clutch issues: (1) A faulty clutch may result in insufficient clutch separation travel, leading to incomplete clutch separation and difficulty engaging gears. In such cases, it is recommended to adjust the separation travel at a repair shop. (2) Excessive self-locking force in the clutch's gear mechanism can cause difficulty in shifting in and out of gears. In this situation, it is advised to adjust the clutch cable at a repair shop. (3) The transmission plate assembly's drive plate may deform due to certain reasons, causing poor separation. It is recommended to replace it with a high-quality pressure plate that matches the original vehicle. 2. Transmission issues: (1) Transmission fluid needs to be replaced. To some extent, the gear oil in the transmission requires regular replacement. If not replaced in time, its lubrication effect will significantly decrease, greatly increasing the resistance when shifting gears, leading to unsmooth gear changes. (2) Shifting gears in a cold car often feels very stiff. After all, in colder temperatures, the viscosity of the gear oil in the transmission cannot reach its optimal state, resulting in poor lubrication and causing a jerky feeling when shifting gears. (3) Sometimes, difficulty in shifting gears is due to wear in the shifting mechanism's connections or hinge parts, causing the gear lever's position to be inconsistent with the actual gear position in the transmission.

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Should the reference point be earlier or later when the seat is forward in Subject 2?

When the seat is forward, the reference point will be earlier. If the seat is adjusted higher, each operation should be performed a little earlier; conversely, if the seat is adjusted lower, each operation can be delayed slightly. During the learning of Subject 2, it is necessary to find a suitable angle for yourself. Before getting into the car, be sure to adjust the car seat and the angle of the rearview mirror. Fix a position each time, and adjust to your familiar position the next time you practice driving, so you won't be disturbed by other students' adjustments. Effects of the seat being too forward or too backward: If the seat is too forward, although the driver's field of vision is broadened, it will cause an uncomfortable driving experience, restricting the movement of legs and feet, making it difficult to flexibly control the brake, throttle, and clutch. It may also cause the driver's chest to press against the steering wheel, affecting the driver's ability to turn the steering wheel. If the seat is too backward, the driver's field of vision will be partially blocked by the engine hood, making it difficult to clearly see the road signs ahead. At the same time, the driver's legs and feet will also lack flexibility when controlling the brake, throttle, and clutch. Height of the seat: The adjustment of the seat height has a significant impact on the Subject 2 test. Tests such as hill start, right-angle turn, S-curve driving, reverse parking, and parallel parking all require timely observation. If the seat height is not adjusted properly, it will affect the driver's judgment to some extent.

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What are the maintenance items at 50,000 kilometers?

The maintenance items at 50,000 kilometers include: replacing engine oil, oil filter, air filter, cabin air filter, fuel filter, spark plugs, belts, and inspecting the chassis, brake pads, brake discs, tires, etc. The maintenance intervals vary among different brands and models, which can be checked in the owner's manual. Common maintenance intervals are 6 months, 8 months, and 12 months. Car maintenance is a preventive measure that involves regular inspection, cleaning, replenishment, lubrication, adjustment, or replacement of certain components. It primarily covers the engine system, transmission system, air conditioning system, cooling system, fuel system, power steering system, etc.

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Should the car air conditioning be set to internal or external circulation?

Whether to use internal or external circulation for car air conditioning depends on the situation. Use internal circulation for short trips and external circulation for long trips. Internal and external circulation in cars refer to: 1. Internal circulation: Internal circulation means the air conditioning system is closed to external air and only recirculates the air inside the car. 2. External circulation: External circulation means the car air conditioning system is open to external air and draws in outside air for circulation. Car air conditioning generally includes cooling devices, heating devices, and ventilation devices. This combined system makes full use of the limited space inside the car, has a simple structure, and is easy to operate, making it the internationally popular modern car air conditioning system.

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What brand is Jianghuai Volkswagen?

What Causes the Abnormal Noise When Accelerating with AC On?

What are the differences between the Brilliance BMW 5 Series and the imported BMW 5 Series?

Why is there resistance when shifting gears in a car?

Should the reference point be earlier or later when the seat is forward in Subject 2?

What are the maintenance items at 50,000 kilometers?

Should the car air conditioning be set to internal or external circulation?

What does the driver's license clearance date mean?

At what voltage does a car battery fail to start the engine?

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