What is the cause of VTC actuator noise?

How to Remove the Spare Tire of the Envision?

Here are the steps to remove the spare tire of the Envision: 1. Open the trunk lid, pull the ring on the trunk floor to open the floor panel; 2. Remove the circular protective cover above the tire; after removing the cover, you will see a fixing nut, unscrew the nut counterclockwise; once the nut is removed, you can easily take out the spare tire. Here is some related information: 1. Full-size spare tire: A full-size spare tire has the exact same specifications as the other four tires on the vehicle and can be used to replace any temporarily or permanently unusable tire. 2. Compact spare tire: This type of spare tire has a slightly smaller diameter and width compared to the other four tires, so it can only be used as a temporary replacement and must be used on non-driving wheels. Additionally, the maximum speed should not exceed 80 km/h. 3. Run-flat tire: Also known as a safety tire (run-flat tire), commonly referred to as a "puncture-proof tire," the industry directly translates it as "tire that can run when flat." Compared to regular tires, run-flat tires do not lose air or lose air very slowly when punctured, maintaining the driving profile, and the tire bead remains fixed on the rim, allowing the car to drive to a service station for a long time or temporarily stably.

11

5

Share

What to Do If Failing the License Renewal Due to Color Weakness?

If you fail the license renewal due to color weakness, you cannot drive motor vehicles. To drive a motor vehicle, you must legally obtain a motor vehicle driver's license. Applying for a motor vehicle driver's license requires meeting the driving permit conditions specified by the public security department under the State Council; after passing the examination, the corresponding category of motor vehicle driver's license will be issued by the traffic management department of the public security organ. The following is an introduction about color weakness: 1. Color Weakness: Also known as "anomalous trichromatic vision." A defect in color vision. It is a mild form of color blindness where individuals can recognize colors but have lower sensitivity. People with color weakness have poorer color discrimination ability, seeing colors only when they are highly saturated and distinguishing hue changes only when there is a significant difference in wavelength. The most common types are red weakness (Type A) and green weakness (Type B), with blue weakness being extremely rare. 2. Relation to Driving: According to the physical condition regulations for driver's license applicants, applicants must not have red-green color blindness, but there are no restrictions for red-green color weakness. Most countries such as the United States, Japan, and Europe have relaxed the requirements for color weakness in small vehicles.

15

2

Share

What is the transmission model of the Volkswagen Golf?

The new Golf GTI-2.0TSI is equipped with a 7-speed DSG dual-clutch transmission. The DSG dual-clutch automatic transmission is currently the most widely used dual-clutch transmission technology in the automotive industry and was the first to be applied in mass production. It utilizes a traditional gear transmission with either 6 or 7 forward gears as the power transmission component, primarily paired with engines featuring high torque platforms. Below is an introduction to the Volkswagen Golf: 1. The Golf pays meticulous attention to ergonomic design and comfort features throughout the vehicle, ensuring all functions are user-friendly. It offers comprehensive comfort and humanized care, providing users with a luxury car-like driving experience. The Golf also incorporates numerous configurations and design standards typically found in higher-end models, such as a multifunctional electric sunroof, a three-spoke genuine leather multifunction steering wheel, and advanced noise reduction and soundproofing designs. 2. The new Golf is powered by the EA211 engine. With the assistance of TSI turbocharging technology, the 1.4T model not only delivers efficient performance with a 0-100 km/h acceleration time of 8.2 seconds but also achieves a lower fuel consumption of 5.4L/100 km, saving 0.4L/100 km compared to the current model. The 1.6L model has a combined fuel consumption of 6.1L/100 km, saving 0.2L/100 km compared to the current model.

14

5

Share

Where is the VIN number on an Audi A6?

Open the hood of the Audi A6, and you will find a black plastic panel in the upper right corner of the engine compartment. Remove this panel to reveal the VIN number. Alternatively, you can locate the VIN near the windshield wipers on the front windshield or on the floor mat inside the vehicle. Additional information: 1. The VIN (Vehicle Identification Number), known in Chinese as the vehicle identification code, is a unique set of characters assigned by the manufacturer to identify a vehicle. The VIN consists of a 17-character alphanumeric code, also referred to as the 17-digit identification code, chassis number, or 17-digit number. Through various combinations, the VIN ensures that no two vehicles of the same model have the same number within 30 years, providing a unique identifier for each vehicle—hence its nickname, the "car's ID card." 2. The VIN is typically located in the lower left corner of the front windshield, on the hinge pillar, door lock pillar, or door edge of the driver's side door, making it easily visible. It may also be found in the engine compartment. If not found in these locations, it might be fixed on the inner side of the door near the driver's seat. 3. The VIN is like a fingerprint for a car. If the metal plate bearing the VIN is damaged, the owner must not attempt to cut out the plate themselves. Instead, the vehicle should be preserved in its damaged state and taken directly to the vehicle management department for certification to prove the damage. The department will then handle the situation according to the actual circumstances.

19

3

Share

Does selecting one less correct answer in the multiple-choice questions of Subject 4 count as correct?

It counts as wrong. The difficulty of the Subject 4 driving test lies in the multiple-choice questions, where neither selecting too many nor too few options is allowed. Therefore, it is essential to memorize the test questions thoroughly before the exam. Subject 4 is actually part of the Subject 3 test, specifically the safe and civilized driving knowledge exam. Hence, when booking Subject 4 online, it will appear as Subject 3. Below are some precautions for the Subject 3 safe and civilized driving knowledge exam: 1. Pay attention to the questions: When entering the exam room, carefully read each question. The questions may differ from those in the textbook, with possible variations in order and requirements. Be cautious when clicking the mouse—avoid double-clicking and only click once. 2. Questions: Once you move to the next question, you cannot change the answer to the previous one, even if it was wrong. If you are unsure about a question, you can skip it temporarily and return to it after completing the other questions. 3. Camera: During the exam, ensure that the small camera is aligned with your face, as several photos will be taken during the test. If a clear frontal photo is not captured, the exam will be considered invalid.

7

5

Share

What type of gasoline should a Camry use?

According to the official vehicle manual recommendation, the Camry should use 92-octane gasoline. In addition to checking the appropriate gasoline grade in the vehicle manual, you can also find it on the fuel tank cap, which will also be indicated. 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. 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 adjusted to use lower-grade gasoline. This is because, besides 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 the Camry occasionally uses the wrong gasoline grade, simply switch back to the correct grade after consumption. However, long-term use of the wrong gasoline grade can have the following effects: For vehicles recommended to use lower-grade gasoline, using higher-grade gasoline will not cause damage, but the increase in octane number will alter 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 in actual driving experience. For vehicles recommended to use higher-grade gasoline, using lower-grade gasoline 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 the knocking is imperceptible, it only increases noise and does not significantly damage the engine. However, if the knocking is noticeable, it indicates severe engine conditions, affecting not only driving stability but also causing abnormal wear on pistons and cylinders, and in severe cases, cylinder scoring.

15

2

Share

What is the cause of VTC actuator noise?

How to Remove the Spare Tire of the Envision?

What to Do If Failing the License Renewal Due to Color Weakness?

What is the transmission model of the Volkswagen Golf?

Where is the VIN number on an Audi A6?

Does selecting one less correct answer in the multiple-choice questions of Subject 4 count as correct?

What type of gasoline should a Camry use?

What is a Fuel-Powered Vehicle?

How often does a car need major maintenance?

Are Convertibles Hot in Summer?

Do I need to take photos on the day of driver's license registration?