How to Set the Automatic Tilting of Rearview Mirror When Reversing for Mercedes-Benz E-Class?

What is the difference between 92 gasoline and 95 gasoline?

92 gasoline and 95 gasoline differ in their composition and performance. The specific differences are as follows: The composition of 92 and 95 gasoline is different: 92 gasoline consists of approximately 92% isooctane and 8% n-heptane, while 95 gasoline consists of approximately 95% isooctane and 5% n-heptane. Isooctane has better anti-knock properties, whereas n-heptane has poorer anti-knock properties. Therefore, the higher the octane rating, the better the gasoline's anti-knock performance. Each engine is given a comprehensive evaluation before leaving the factory, and based on the engine's performance and other data characteristics, the required anti-knock properties are determined, which dictates the appropriate octane rating of gasoline to be used. The performance of 92 and 95 gasoline is different: 95 gasoline, with its higher octane rating, is suitable for engines with higher compression ratios. This is because, as the engine speed increases, the ignition timing in the cylinder advances. When the speed reaches a critical point, the fuel-air mixture may ignite prematurely before the spark plug fires, a phenomenon known as knocking. Increasing the gasoline's octane rating can effectively enhance its resistance to knocking.

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Is it not possible to pass the annual vehicle inspection without installing ETC?

It is possible to pass the annual vehicle inspection without installing ETC. ETC (Electronic Toll Collection): A non-stop toll collection system. When a vehicle enters the ETC lane, the on-board electronic tag in the vehicle connects with the microwave antenna in the ETC lane, and the electronic computer processes the information to achieve the purpose of toll payment without stopping. Vehicle annual inspection items: Appearance inspection: Take the appearance inspection form to the appearance inspection station, first check the relevant procedures, and verify whether the third-party insurance (compulsory insurance) is within the validity period. After the procedures are checked, the appearance inspection begins. This inspection mainly checks whether the lights are damaged, whether the vehicle appearance conforms to the original condition, whether the suspension has been altered, as well as the sunroof, tires, etc. Emission monitoring: First, queue up and wait for the test. Before the test, a staff member will conduct a preliminary inspection, mainly to verify whether the engine number matches the one on the driving license, and then briefly check the appearance and condition of the vehicle before filling out the emission test form. During the test, the inspector will drive the vehicle onto the test line. Generally, new vehicles pass easily, and once the qualified emission test form is obtained, you can go to the window to pay and receive the emission qualification label. If it fails, you need to go to an auto repair shop for adjustment and then retake the test, of course, paying the test fee again. Online inspection: If the appearance inspection is fine, queue up and wait for the online inspection. The inspection line is responsible for testing brakes, headlights (high beam), chassis, etc., which takes about 5-10 minutes. After the vehicle is driven off the line, you will receive a computer-printed form, which generally includes items such as brakes, lights, and horn. Qualified items are marked with "0", and unqualified ones with "X". Usually, it's the lights and brakes that fail. Don’t worry, the inspection site has places to adjust lights and brakes. After adjusting the brakes, you need to retake the test, but for lights, you just need to get a stamp after adjustment. Check for violations: Get and fill out the "Motor Vehicle Regular Inspection Registration Form" at the inquiry window, which can be obtained with the driving license. After filling out the form, hand it to the staff to check for any violation records. If there are no issues, the form will be stamped with "Verified, can inspect". If there are violations, take the violation notice and deal with them as soon as possible. ETC deduction principle: There will be one or more ETC lanes on the highway. Through the dedicated short-range microwave communication between the on-board electronic tag installed on the vehicle's windshield and the microwave antenna in the ETC lane of the toll station, and using computer networking technology for background settlement with the bank, the purpose of paying road and bridge tolls without stopping at the toll station is achieved. All of this is based on the principle of passing first and deducting fees later. Benefits of installing ETC: Save time: Eliminates the hassle of waiting in line; Green and environmentally friendly: Green and low-carbon, vehicles pass through toll stations without stopping, reducing noise and emissions and minimizing pollution; Save on wear and tear: Saves costs, reduces the frequency of vehicle starts and brakes, and lowers wear and fuel consumption; Improve efficiency: The efficiency of passing through ETC lanes can theoretically be increased by 2-3 times or more, making traditional ETC updates faster and more high-tech. Compared to license plate payment, ETC technology is more mature and advantageous. More policy support: The State Council clearly stated in the "13th Five-Year Plan for the Development of a Modern Comprehensive Transportation System" that "by 2020, the interoperability of transportation cards in key city clusters will be basically achieved, and the proportion of vehicles equipped with ETC will be significantly increased," and clearly proposed in the main indicators of the "13th Five-Year" comprehensive transportation development that "by 2020, the ETC usage rate of road passenger vehicles will reach 50%". More future possibilities: In addition to continuously improving the convenience of ETC installation and usage and the ETC usage rate of passenger vehicles, the future will also promote the use of ETC for trucks, explore the deep integration of the ETC system with the development directions of smart transportation such as vehicle-to-vehicle communication and vehicle-road coordination, and provide comprehensive travel services for car owners, which means more application scenarios will support ETC applications.

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What does it mean when the DEF light comes on in a diesel vehicle?

When the DEF light comes on in a diesel vehicle, it indicates that the vehicle's urea is running low and reminds the owner to add urea as soon as possible. Below is the relevant information: 1. Introduction to DEF: DEF (Diesel Exhaust Fluid) is referred to as diesel exhaust treatment fluid. 2. Function of DEF: Diesel exhaust treatment fluid (commonly known in China as automotive urea, vehicle urea, or automotive environmental urea) is a consumable required in SCR technology. It is a liquid used in SCR technology to reduce nitrogen oxide pollution in diesel vehicle exhaust. Its composition consists of 32.5% high-purity urea and 67.5% deionized water.

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What could be the reasons for the ABS warning light to illuminate in a vehicle?

ABS warning light can illuminate in various states, with different causes and solutions for each state. Details are as follows: State 1: ABS warning light remains constantly on (most common). Cause 1: The sensing part of the ABS speed sensor is covered by dirt, mud, or other contaminants, affecting the sensor's ability to detect the corresponding speed signal. This prevents the ABS computer from determining the vehicle speed and the wheel slip rate, thus failing to issue appropriate commands to regulate braking. Solution: Clean the dirt from the speed sensor and adjust the gap between the speed sensor and the signal ring to restore normal function. Cause 2: Poor signal due to loose connections in the system wiring or poor contact in the ABS relay, leading to system failure. Solution: Check the wiring connections and reconnect any loose parts. State 2: ABS warning light intermittently illuminates but turns off during acceleration. Cause: When multiple vehicle electrical devices are in use, the battery voltage drops below 10.5V. As the engine speed increases, the voltage rises, and the ABS warning light turns off. This can also occur if the ABS system power supply voltage is too low, such as due to poor terminal contact or grounding issues. Solution: Check the battery specific gravity; inspect the charging system; examine the power supply (e.g., voltage relay or poor power contact). State 3: ABS warning light remains on after engine start and only turns off when the engine is turned off (IGFF). Cause: Poor grounding contact in the ABS hydraulic valve body; poor contact in the ABS hydraulic valve body wiring connector; ABS computer malfunction. Solution: Loosen and then retighten the grounding screw of the hydraulic valve body, cleaning the contact surface if necessary; check if the connector gap has widened; replace the ABS or ABS/ASR computer. State 4: ABS warning light illuminates during high-speed driving. Cause: During high-speed driving, the ABS computer detects a significant discrepancy between the rear and front wheel speed signals; incorrect tire or wheel rim specifications. Solution: Refer to the vehicle's tire and wheel rim specifications, as indicated on the label near the fuel tank cap. State 5: ABS warning light intermittently illuminates. Cause: Improper adjustment of the brake light switch; poor internal contact in the brake light. Solution: With the engine running, press the brake pedal and use a finger to push the brake switch linkage fully downward, then release the brake pedal to complete the self-setting position; replace the brake light switch if necessary. If the ABS warning light is on, it is advisable not to continue driving. An illuminated ABS light indicates a malfunction in the vehicle's anti-lock braking system. During emergency braking, if the wheels lock up, the vehicle may skid uncontrollably, preventing the driver from slowing down or adjusting the vehicle's trajectory, posing significant safety risks.

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Can a Car Start If It Gets Water Inside?

If water enters the engine, the car will not start, and it may not even be possible to ignite the engine after water ingress. Attempting to start the engine after water has entered can cause severe and irreversible damage to the engine. Therefore, if the engine stalls due to water ingress, it is crucial not to attempt to restart it. Below is a relevant explanation: A car's engine compresses air, which is possible because air molecules have relatively large gaps between them, making air compressible. However, water cannot be compressed due to its small molecular gaps. Compressing water in the engine can lead to piston breakage, connecting rod deformation, and cylinder wall fractures. If the engine suffers damage to this extent, the repair costs can be extremely high, and the time required for repairs will also be significantly longer.

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What is consumed when charging in a car?

Charging electrical devices such as mobile phones in a car consumes the power of the vehicle's battery. Here are the relevant details: 1. Charging scenario: Charging devices like mobile phones in the car consumes the power of the vehicle's battery. If the vehicle is in a charging state, meaning the engine is running, the impact on the battery is negligible. However, if the vehicle is not in a charging state, it will consume the battery's power, which can shorten the battery's lifespan over time. 2. Precautions: The lifespan of the battery is directly related to driving conditions and road conditions. In daily use, try to avoid using the vehicle's electrical devices when the engine is not running, such as charging electronic devices for extended periods.

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How to Set the Automatic Tilting of Rearview Mirror When Reversing for Mercedes-Benz E-Class?

What is the difference between 92 gasoline and 95 gasoline?

Is it not possible to pass the annual vehicle inspection without installing ETC?

What does it mean when the DEF light comes on in a diesel vehicle?

What could be the reasons for the ABS warning light to illuminate in a vehicle?

Can a Car Start If It Gets Water Inside?

What is consumed when charging in a car?

What are the reasons why the car won't start or ignite?

What does the F3 display on a car refrigerator mean?

Can a B2 License Drive a B1 Vehicle?

What is the function of an A/D converter?