When is the first maintenance for the 2021 Bora?

Differences Between Supercharging and Turbocharging

The differences between supercharging and turbocharging are: 1. Different methods: Supercharging is directly connected to the engine output via a belt, and the moment the engine starts, the supercharger begins transmitting power; turbocharging is driven by the engine's exhaust gases to spin the turbine. 2. Different rotational speeds: Superchargers rotate relatively quickly; turbochargers spin slowly, and their boosting effect is not immediately apparent—they need the engine to reach a certain RPM before they start working effectively. 3. Different linearity in power output: The power source of a supercharger comes from the engine's output, which places a burden on the engine. Small-displacement engines generally do not use supercharging; turbocharging is often installed on small-displacement engines to achieve the goal of high power output from a small displacement.

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Can I apply for an A3 driver's license?

Yes, you can. To apply for an A3 driver's license, you must be at least 21 years old or have held any driver's license for at least one year without any full-point demerit records, and you need to register for training in your registered residence location. Below is relevant information about the A3 driver's license: 1. Physical requirements for the license: Height - Applicants for large buses, tractors, city buses, large trucks, or trolleybuses must be at least 155 cm tall. Applicants for medium-sized buses must be at least 150 cm tall. Vision - Applicants for large buses, tractors, city buses, medium-sized buses, large trucks, trolleybuses, or trams must have uncorrected or corrected visual acuity of at least 5.0 on the logarithmic visual acuity chart. For other vehicle types, the requirement is at least 4.9. Applicants with monocular vision impairment can apply for small cars, small automatic transmission cars, low-speed trucks, three-wheeled cars, or small automatic transmission passenger cars for the disabled if their better eye has uncorrected or corrected visual acuity of at least 5.0 and a horizontal field of vision of at least 150 degrees. Color vision - No red-green color blindness. Hearing - Must be able to discern the direction of sound from a tuning fork 50 cm away in each ear. Applicants with hearing impairment who meet the above criteria with hearing aids can apply for small cars or small automatic transmission cars. Upper limbs - Both thumbs must be intact, and each hand must have at least three other fingers intact with normal movement. Applicants with missing fingertip segments or a missing right thumb can apply for small cars or small automatic transmission cars. Lower limbs - Both legs must be intact with normal movement, and the length difference should not exceed 5 cm. Applicants with a missing or non-functional left leg can apply for small automatic transmission cars. Those with missing or non-functional right or both legs but can sit independently can apply for small automatic transmission passenger cars for the disabled. Trunk and neck - No movement disorders. 2. Vehicles allowed with an A3 license: The A3 license is primarily for driving city buses but is not limited to them. According to regulations, holders of an A3 license can also drive vehicles under the C1 category, such as small cars, small automatic transmission cars, low-speed trucks, and three-wheeled cars. Although city buses are over six meters long and carry more than 20 passengers, they are not equivalent to large coaches like tourist buses. Therefore, an A3 license alone does not permit driving large coaches, whereas an A1 license allows driving both large coaches and city buses.

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How to Turn on the External Air Circulation in a Mercedes-Benz?

Method to activate external air circulation in Mercedes-Benz: First press the internal circulation button - the illuminated indicator signifies internal circulation. External circulation is engaged only when the indicator turns off. Therefore, the external circulation function shares the same button as internal circulation, which serves multiple purposes: 1. Briefly press the internal circulation button (indicator illuminates) to activate internal circulation; 2. Briefly press it again (indicator turns off) to switch to external circulation; 3. Long-press the button to automatically close/open all windows - particularly useful when encountering sudden smoke, dust, or polluted road conditions while driving with windows open. After enabling external circulation, the air intake located at the firewall is opened by the climate control system. The blower then draws outside air through the microfilters into the evaporator's dual heat exchangers. Conditioned air is subsequently discharged through the vents. Note: Certain Mercedes models automatically revert to external circulation after 5-10 minutes of forced internal circulation to maintain air quality and sufficient oxygen levels, explaining why outside air may still enter during internal circulation mode.

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What is the purpose of a bumper?

A bumper is an important safety device designed to absorb and mitigate external impacts, protecting the front and rear parts of the vehicle body. Typically located at the front and rear ends of the car, bumpers are mostly made of highly elastic materials such as plastic or resin, with some containing materials like silk fibers. The primary function of a bumper is to reduce the impact of minor collisions on the vehicle, and they are relatively easy to replace if damaged. Modern front and rear bumpers are made of plastic, commonly referred to as plastic bumpers, but not ordinary plastic. Generally, bumpers are made of ABS engineering plastic, utilizing computer-controlled painting processes with multiple layers of coating to achieve matte or mirror-like finishes. These bumpers do not fade or rust, fitting more seamlessly with the vehicle body while enhancing the texture of the front and rear aesthetics, all while protecting the car.

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What is the normal water temperature for a car?

Normal car temperature ranges between 80°C to 90°C. The car engine requires a specific operating temperature for normal functioning, as temperatures that are too high or too low can adversely affect engine operation and performance. Additionally, conventional air cooling is often insufficient to dissipate the heat generated by engine operation, which is why water cooling systems are widely used in car engines. The cooling system's role is to maintain the engine within the most favorable temperature range to enhance engine power, reduce engine wear, and minimize fuel consumption. Both excessively high and low temperatures can negatively impact engine performance. To ensure the engine operates within the normal temperature range, cars are equipped with an engine coolant temperature sensor, typically displayed separately on the dashboard. If the antifreeze temperature becomes too high, an alarm will be triggered.

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What to Do About Small Scratches on the Car?

Methods to deal with small scratches on the car: 1. Squeeze a small amount of toothpaste onto the scratch and gently rub it to remove the scratch. The fine particles in the toothpaste help polish away the scratch through rubbing; 2. Use a touch-up paint pen to eliminate the scratch. Shake the touch-up pen well before use to mix the paint evenly, then spray lightly on the scratched area; 3. Repair with car wax. If the scratch is very shallow and only affects the surface paint, you can apply car wax in straight-line motions to repair it. After the scratch disappears, use a finer compound to wipe and then apply wax. Make sure to choose high-quality wax, as poor-quality wax can worsen the paint damage.

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When is the first maintenance for the 2021 Bora?

Differences Between Supercharging and Turbocharging

Can I apply for an A3 driver's license?

How to Turn on the External Air Circulation in a Mercedes-Benz?

What is the purpose of a bumper?

What is the normal water temperature for a car?

What to Do About Small Scratches on the Car?

Why does gas escape when opening the car fuel tank cap?

Is the Engine Equipped in Honda Lingpai a Three-Cylinder Engine?

Is hitting a guardrail and leaving considered hit-and-run?

What Causes the Engine Malfunction Light to Sometimes Illuminate in a Car?