Should a 5-year-old car still go to a 4S shop for maintenance?

Can Wheel Hubs Be Replaced at Will?

Wheel hubs cannot be replaced at will. Here are the reasons why tires should not be changed arbitrarily: 1. Although the structure of tires is simple, when the tire size changes, many parameters of the car will undergo significant changes because the entire vehicle relies solely on the wheel hubs to contact the road surface. 2. If the wheel hub size is increased, the car's mileage will decrease because the mileage is calculated based on the number of rotations of the wheel hubs, which can affect the judgment of maintenance cycles. 3. Regulations on car modifications: Changing the registered appearance and technical data of a motor vehicle will not be approved for modification registration, unless otherwise specified by national mandatory standards. 4. Regardless of national regulations, considering safety issues alone, there have been news reports of people replacing wheel hubs with inferior quality, leading to the wheel hubs breaking directly while driving on the highway, subsequently causing tragic accidents.

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What Causes Water to Come Out of a Car's Exhaust Pipe?

Water coming out of a car's exhaust pipe indicates that the engine is burning fuel efficiently, which is a normal phenomenon. This occurs because the exhaust gases produced from complete combustion of fuel contain water vapor. When this vapor passes through high-temperature environments, it condenses into liquid form and is eventually expelled from the exhaust pipe. Generally, there is a small hole at the front of the car's exhaust pipe. Its purpose is to drain any accumulated water from the pipe. If this hole becomes blocked, water may leak from other parts of the exhaust system. However, if a large amount of water droplets are observed flowing out of the exhaust outlet, it may indicate an abnormal condition. Excessive moisture in the exhaust system can damage the oxygen sensor in the catalytic converter, leading to issues with the engine's oil system, unstable idling, or abnormal vehicle vibrations. Moreover, if water remains trapped in the exhaust pipe for extended periods, it can accelerate corrosion. If excessive water is noticed in the exhaust system, it is advisable to visit a 4S shop or authorized service center for professional inspection. The car exhaust bellows, also known as the exhaust pipe flexible hose, is installed between the exhaust manifold and the muffler's exhaust pipe. This component provides a flexible connection for the entire exhaust system, offering benefits such as vibration damping, noise reduction, ease of installation, and extended lifespan of the exhaust muffler system.

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How Much Oil Should Be Added to the Equipment Transmission?

There are two methods: gravity oil change generally requires 3-5L, while machine circulation oil change requires 12L. Here is a partial introduction about adding oil to the equipment transmission: 1. Gravity Oil Change: Similar to changing engine oil, this method is the most convenient and cost-effective, usually requiring only 3 to 5 liters of transmission oil. However, the downside is that gravity draining does not completely remove the old oil, only about one-third of the original oil can be drained. The remaining oil, which cannot be drained through the active transmission oil pan, is the dirtiest part. 2. Machine Circulation Oil Change: This method involves connecting a transmission circulation machine to the transmission's oil circuit interface. New oil is added to the circulation machine, which then "pushes" the old oil out of the transmission. It cleans and removes metal impurities and sludge from the transmission torque converter and oil passages. The dirtier the oil that comes out, the cleaner the transmission becomes. This method requires approximately 12 liters or even more transmission oil. The more oil used, the cleaner the transmission becomes.

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What does D+- mean in automatic transmission?

D+- in automatic transmission represents the manual mode of an automatic gearbox, indicating that the vehicle is equipped with a semi-automatic transmission that combines automatic gear shifting with simulated manual gear shifting. The D+- mode not only retains the automatic gear shifting function but also adds the manual gear shifting capability, breaking free from the limitations of traditional automatic transmissions. This allows drivers to enjoy the fun of free gear shifting like in manual transmissions while still experiencing the comfort of automatic transmissions. Additional information: 1. In manual mode, the vehicle will have three restricted gears: D1, D2, and D3. When driving through complex road conditions, switching to manual mode can make driving more convenient. 2. When encountering slopes, the vehicle can be switched to manual mode with the gear shifted to D3 or D2, providing greater power and limiting the speed to these two gears. For steeper slopes, the gear can be shifted to 1st gear. Similarly, when going downhill, shifting to these two gears can reduce brake pad wear, lower the probability of accidents, help control speed, and make driving safer.

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Will the car hit the wall if turning the steering wheel fully to the left while the right side is close to the wall?

Backing up will definitely hit the wall; if you turn the steering wheel fully to the opposite side of the wall and move forward, the rear edge of the front wheels will hit the wall. Therefore, it is better to move forward slowly while gradually turning the steering wheel. Wait until the front of the car is far from the wall, and the rearview mirror shows that the rear of the car also has a safe distance from the wall, then you can fully turn the steering wheel to drive out. Here are some driving precautions: 1. Check the rearview mirror: When turning or changing lanes, you must turn on the turn signal and slow down. Always check the rearview mirror before turning; left turns mainly require checking the left rearview mirror, right turns mainly require checking the right rearview mirror, and both left and right turns require checking the interior rearview mirror. 2. Don’t stare at the front of the car: When driving on a clear road, look straight ahead 100 meters, not at the immediate front of the car. 3. Press the clutch: Usually, when decelerating at speeds above 40 km/h, there is no need to press the clutch first. Press the clutch when the speed drops to about 20 km/h. 4. Steering: Turn the steering wheel slowly at high speeds and quickly at low speeds.

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What brand are the original tires for the Mercedes-Benz GLA200?

Mercedes-Benz GLA tires are from the Bridgestone brand. The Mercedes-Benz GLA uses tires with the size 235/45/R19. Below is relevant information: 1. Tire width: This is a factor that affects the vehicle's fuel consumption performance. The wider the tire, the larger the contact area with the ground, which increases the friction between the tire and the ground. The energy lost as the vehicle's kinetic energy is converted into frictional heat will increase, meaning wider tires consume more fuel over the same distance. 2. Aspect ratio: This is a major factor influencing the vehicle's responsiveness to the road. Vehicles with a lower aspect ratio have thinner sidewalls and greater tire pressure, making them highly responsive to the road. This allows them to quickly transmit road signals to the driver, enhancing control, and is commonly found in performance-oriented models.

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Should a 5-year-old car still go to a 4S shop for maintenance?

Can Wheel Hubs Be Replaced at Will?

What Causes Water to Come Out of a Car's Exhaust Pipe?

How Much Oil Should Be Added to the Equipment Transmission?

What does D+- mean in automatic transmission?

Will the car hit the wall if turning the steering wheel fully to the left while the right side is close to the wall?

What brand are the original tires for the Mercedes-Benz GLA200?

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