What are the benefits of the Vehicle Stability Control System?

Can I switch from C2 to C1 after passing Subject 1?

C2 can be changed to C1 after passing Subject 1, but according to relevant regulations, you must retake the exams because the test contents are different. C1 driver's license test: The test subjects include four items: traffic regulations and related knowledge, field driving, road driving, and safe and civilized driving knowledge. Passing standards: Traffic regulations and related knowledge (Subject 1) - written test, full score is 100, 90 or above is passing. Field driving (Subject 2) - on-site, actual vehicle. The minimum requirement is 80 points, below 80 is failing. Road driving (Subject 3) - highway or simulated field, actual vehicle. Full score is 100, must achieve 90 or above to pass. Safe and civilized driving knowledge - written test, questions mainly in the form of cases, pictures, animations, etc., question types include true/false, single-choice, and multiple-choice, a total of 50 questions, full score is 100, 90 is passing.

2

0

Share

Is a U-turn at a red light considered running a red light?

When making a U-turn at a red light, if there is a dashed line in the left-turn lane, you are allowed to make the U-turn even if the left-turn signal is red, provided that you do not interfere with the normal flow of traffic in the opposite lane. Criteria for determining running a red light: Traffic cameras capture three photos as evidence for running a red light: the front wheels crossing the stop line, the rear wheels crossing the stop line, and the front wheels crossing the opposite stop line. Only when all three photos are present will it be considered running a red light. How to avoid running a red light while driving: Follow the arrow signal if there is one; otherwise, follow the circular signal. When the red light is on, the front of the vehicle must not cross the stop line. When the yellow light is on, the front of the vehicle must not cross the stop line. When the green light just starts flashing, you should proceed if you are close and moving fast, as you may not be able to stop in time and could cross the stop line. If you are far away, moving slowly, or the intersection is congested, you should stop. When driving in the city, develop the habit of looking for traffic lights whenever you see a crosswalk or stop line or approach an intersection.

6

0

Share

How to Remove Adhesive Stickers from Car Windows?

Adhesive stickers on car windows can be removed using the following methods: 1. Alcohol Wipe: Use a soft cloth or similar material soaked in a sufficient amount of 95% alcohol solution to gently wipe the sticker. The adhesive will soften and come off easily. The advantage of using an alcohol solution is that it does not cause any damage to the surface of plastic products or car paint. 2. Gasoline Wipe: Be cautious as gasoline may have a 'dissolving' effect on certain plastics or paints. Use it carefully to avoid unnecessary trouble. Note that the amount of gasoline used should not be excessive, and the wiping time should be as short as possible to prevent damage to the plastic surface. 3. Hand Cream Wipe: Hand creams contain a large amount of solvents (generally over 70%) and water with a certain amount of surfactants. Surfactants have excellent wetting, penetrating, and dissolving abilities, allowing them to quickly penetrate between the adhesive and the surface, achieving a cleaning effect. 4. Hair Dryer Blow: Use a hair dryer to heat the adhesive until it softens. When the adhesive force of the double-sided tape weakens, it can be removed more easily.

1

0

Share

What are the reasons why the air conditioning in the Audi Q3 is not cooling well?

Audi Q3 air conditioning not cooling well reasons introduction: Excessive refrigerant causing insufficient cooling. For excessive refrigerant, it is usually caused by overfilling during maintenance, as the proportion of refrigerant in the air conditioning system has specific requirements. If the proportion is too high, it can affect heat dissipation, meaning more heat dissipation leads to greater cooling capacity; conversely, less heat dissipation results in smaller cooling capacity. Below are three reasons: 1. Condenser issue: When the car is moving, the condenser has higher wind speed and better heat exchange efficiency, leading to better performance. At idle, the temperature around the condenser is high, the wind speed is low, and the refrigerant cannot cool down effectively, resulting in poor performance. 2. Condenser not dissipating heat leading to poor cooling: Especially the gap between the condenser and the radiator, if not cleaned for years, it may become completely blocked. In this case, the high-pressure air pump needs to be blown or removed for cleaning. 3. Lack of refrigerant: This leads to insufficient refrigerant in the air conditioning system pipelines, reduced pressure, and decreased heat absorption capacity.

4

1

Share

Which holds its value better, the Mercedes-Benz E300 with the large emblem or the upright emblem?

The large emblem and upright emblem do not affect the resale value. There are four main factors that influence resale value: 1. Brand Influence: Brand influence is one of the decisive factors for resale value. Currently, the luxury brands with the best resale value in the market are Mercedes-Benz, BMW, and Lexus, while Audi is in the middle range. Luxury brands like Cadillac, Infiniti, and Acura have relatively lower resale values. 2. Market Presence: The market presence of a car, which is the result of accumulated sales over the years, also plays a role. Generally, the higher the market presence of a model, the higher its resale value. However, some niche cars with special value (e.g., Renault Mégane RS, Mitsubishi EVO9) also have very high resale rates. The Mercedes-Benz E-Class has a high market presence, so its resale value is also relatively high. 3. Configuration and Color: Top-tier models tend to depreciate faster than mid- or low-tier models of the same series due to their higher initial prices. 4. Accident History: If a car has been involved in a major accident and its structure has been damaged, its depreciation rate will increase significantly. If the car is in its original condition with no major accidents, the resale price will be higher.

15

2

Share

What grade of gasoline should a Volkswagen Sagitar use?

Volkswagen Sagitar should use 95-octane gasoline, as this fuel grade is recommended in the vehicle's official user manual. In addition to checking the appropriate gasoline grade in the user manual, you can also find it on the fuel tank cap, which will also indicate the recommended grade. Typically, the gasoline grade can also be determined based on the engine's compression ratio. Vehicles with an engine compression ratio between 8.6-9.9 should use 92-octane gasoline, while those with a compression ratio between 10.0-11.5 should use 95-octane gasoline. If the compression ratio is higher, 98-octane gasoline is recommended. However, with the use of some new technologies, the gasoline grade cannot be solely determined by the compression ratio. A high compression ratio can also be tuned to use lower-octane gasoline because, apart from the compression ratio, other factors such as ignition timing, turbocharging technology, and Atkinson cycle technology also play a role. Generally, the higher the gasoline grade, the higher the octane number and the better the anti-knock performance. 92-octane gasoline contains 92% isooctane and 8% n-heptane, while 95-octane gasoline contains 95% isooctane and 5% n-heptane. If you occasionally use the wrong gasoline grade in a Volkswagen Sagitar, simply switch back to the correct grade after using it up. However, long-term use of the wrong gasoline grade can have the following effects: For vehicles recommended to use lower-octane gasoline, using a higher-octane grade will not cause damage, but the increase in octane number will change the fuel's ignition point, leading to delayed combustion in the engine. This means both the engine's power output and thermal efficiency will decrease, resulting in poorer performance. For vehicles recommended to use higher-octane gasoline, using a lower-octane grade can cause engine knocking. Because the octane number is too low, the gasoline's ignition point decreases, causing it to ignite prematurely during the compression stroke. If the fuel ignites before the spark plug fires during the compression stroke, resistance will occur during the upward stroke. This resistance makes the engine run very unstably. If it's mild knocking, it only increases noise and does not significantly damage the engine. However, if there is noticeable knocking, it indicates severe engine conditions. The vibration not only affects driving stability but also causes abnormal wear on the pistons and cylinders, and in severe cases, can lead to cylinder scoring.

5

1

Share

What are the benefits of the Vehicle Stability Control System?

Can I switch from C2 to C1 after passing Subject 1?

Is a U-turn at a red light considered running a red light?

How to Remove Adhesive Stickers from Car Windows?

What are the reasons why the air conditioning in the Audi Q3 is not cooling well?

Which holds its value better, the Mercedes-Benz E300 with the large emblem or the upright emblem?

What grade of gasoline should a Volkswagen Sagitar use?

Is a Test Required for a C1 Driver's License Expired for One Year?

Which car models have umbrellas in their doors?

Are Spark Plugs Universal?

Can You Exchange a New Car If It Has Problems?