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What is the meaning of a keyless entry system?

1 Answers
DelColin
07/25/25 4:46am
Keyless entry system refers to an intelligent system that utilizes advanced RFID wireless radio frequency technology and identity coding recognition system, which means there is no need to use a traditional mechanical key to unlock the vehicle door for starting the car. Here are the detailed introductions: 1. When the car owner steps into a designated range, the system can recognize that the owner is the authorized driver and automatically unlock the door. 2. Once inside the car, the owner only needs to press a button to start the ignition switch. Nowadays, smart keys can also "lock" the key itself to prevent the owner from being locked outside.
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What is the Difference Between an Engine and a Transmission?

Transmissions and engines mainly have the following differences: 1. The transmission changes the gear ratio to expand the torque and speed of the drive wheels. 2. The engine is the power source of a car. Most car engines are thermal power devices, referred to as heat engines. Below are related introductions to transmissions and engines: 1. The transmission mainly refers to the car's gearbox, which is divided into manual and automatic types. Manual transmissions primarily consist of gears and shafts, achieving speed and torque changes through different gear combinations. 2. The car engine is the device that provides power to the car, serving as the heart of the vehicle. It determines the car's power, fuel efficiency, stability, and environmental friendliness.
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Which gear is M1?

M1 refers to the first gear in manual mode. It is commonly used when going up or down slopes, entering underground parking garages, in heavy traffic, or when following other vehicles. When shifted into M mode, the transmission switches to manual operation, requiring the driver to manually change gears. The gear shift lever will have symbols indicating plus and minus; pushing the lever toward the plus symbol shifts up one gear, while pushing it toward the minus symbol shifts down one gear. Common automatic transmission gear positions include P, N, R, D, L, S, and M, which stand for: P (Park), N (Neutral), R (Reverse), D (Drive), L (Low, also known as Hill Climb), S (Sport, also known as Sport Mode).
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How to Spray Windshield Washer Fluid in a Bora Car?

The method to spray windshield washer fluid in a Bora car is to pull the lever on the right side of the steering wheel upwards. It is important to note that in winter, the selection of windshield washer fluid should be based on its antifreeze performance. Choose a fluid with a freezing point at least 10 degrees Celsius below the local temperature to prevent the fluid from freezing and causing issues such as a malfunctioning washer pump. The Bora is equipped with two types of engines: a 1.5-liter naturally aspirated engine and a 1.4-liter turbocharged engine. It features a MacPherson independent front suspension and a torsion beam rear suspension. The car's dimensions are 4562 mm in length, 1793 mm in width, and 1468 mm in height, with a wheelbase of 2614 mm.
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How to Turn Off the Auto Start-Stop Function in the New BMW 5 Series?

The method to turn off the auto start-stop function in the new BMW 5 Series is to simply press the auto start-stop button. The auto start-stop button is located in front of the gear lever, marked with a circle containing the letter 'A' and the word 'OFF' beside it. Mid-to-high-end models are equipped with both auto start-stop and auto hold functions, eliminating the need to press the brake pedal, thus reducing foot fatigue and improving the vehicle's fuel economy. The new BMW 5 Series is available in two versions: a fuel-powered version and a plug-in hybrid version, and offers two exterior packages: the M Sport package and the Luxury package. The car's dimensions are 4998mm in length, 1901mm in width, and 1559mm in height, with a wheelbase of 3070mm.
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What is the National III Emission Standard?

The National III emission standard mainly refers to: HC emission value below 0.2g/km, CO emission value below 2.3g/km, NOx emission value below 0.15g/km, with no PM requirement. The National III standard is China's third-stage vehicle emission standard. The National III emission standard is equivalent to the European III emission standard, meaning the content of tailpipe pollutants is equivalent to Euro III levels. The difference is that new vehicles must be equipped with an OBD, or On-Board Diagnostics system. The On-Board Diagnostics system features an increased number of detection points and detection systems, with oxygen sensors installed at both the inlet and outlet of the three-way catalytic converter. It ensures compliance by fully monitoring vehicle emissions in real-time, thereby better guaranteeing the enforcement of the Euro III emission standard. When vehicle emissions fail to meet the Euro III standard due to factors like fuel quality, the implementation of the National III standard will increase the cost per vehicle. To stably meet the National III vehicle emission standard, vehicles must be equipped with technical measures that ensure pollutant emissions comply with the National III standard, along with the use of fuel that meets the Euro III standard. Automobile exhaust is the waste gas produced during vehicle use, containing hundreds of different compounds, including pollutants such as solid suspended particles, carbon monoxide, carbon dioxide, hydrocarbons, nitrogen oxides, lead, and sulfur oxides. As the environmental harm caused by vehicle emissions becomes increasingly severe, countries and regions around the world have successively established limits on vehicle exhaust emissions, with the European standard set by the EU serving as a reference standard adopted by most countries and regions. China's National 3 and National 4 standards are based on the Euro 3 and Euro 4 vehicle emission standards.
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What is the failure rate of Audi?

Audi's failure rate is 63 percent. Introduction to automotive failure rate: The automotive failure rate refers to the probability of a vehicle experiencing a failure within a unit of mileage at a certain driving distance, also known as the failure probability or failure degree. It is an important parameter for measuring the reliability of a vehicle, reflecting the degree of loss of working capability during use. Measures to reduce automotive failure rate: To ensure the good technical condition of a vehicle, it is necessary to perform careful maintenance as specified by the manufacturer during use. This includes tightening connections, lubricating lubrication points, readjusting adjustment points, and seasonal maintenance of coolant. To reduce natural degradation, adding protective agents (additives) to the lubrication system, cooling system, fuel system, manual transmission, or automatic transmission can reduce wear and corrosion, effectively extending the service life and preventing failures.
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