What are the maintenance items for a car with over 40,000 kilometers?

What is the function of accessory in a car?

Car accessory is an auxiliary mode of a car. Accessory is the ACC power supply, which is a type of power supply used in cars, controlled by the car key, to provide power to certain components of the car's entertainment devices such as the audio system for use. For example, the radio and cigarette lighter remain powered. When the vehicle is being started, a strong current is required, at which point the accessory (ACC) automatically stops supplying power. Once the car ignition is completed, it automatically resumes power supply. Car ignition switches generally have four positions: START, ON, ACC, and LOCK. Usually, when the car is parked and turned off, the key is in the LOCK position. In this position, the vehicle's circuit is disconnected, and the entire car is powered off. Additionally, the steering wheel lock is engaged. When the key is in the ACC position, some of the car's electrical devices are powered, such as the radio and audio system, but other components of the car are not yet powered. This is the main difference between ACC and ON. When the key is in the ON position, all components of the car are powered, including the engine system. START is the ignition position. That is, once the key is turned to the START position, the starter is powered and begins to work. Design principles of accessory power supply: Input voltage VIN range: The VIN range of the battery voltage directly determines the input voltage range of the power conversion to the IC; Heat dissipation considerations: Heat dissipation needs to be designed based on the converter's minimum efficiency; Static operating current and shutdown current; Cost control: The manufacturer's attitude towards cost and specifications is a significant factor affecting the power supply's bill of materials; Position and layout: In power supply design, component layout directly affects the overall performance of the power supply.

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How many liters of automatic transmission fluid does the Damy x5 require?

The Damy x5 requires 6 liters of automatic transmission fluid. Function of the transmission: The transmission is a mechanism used to alter the speed and torque from the engine. It can fix or change the gear ratio between the output shaft and the input shaft, also known as the gearbox. Changing the gear ratio meets the traction needs under different driving conditions, allowing the engine to operate as much as possible under favorable conditions and meeting the required driving speeds. It enables a wide range of changes in the vehicle's speed and the torque on the driving wheels. Due to varying driving conditions, the vehicle's speed and driving torque need to be adjustable over a wide range. Classification of vehicle transmissions: They are divided into manual and automatic types. Manual transmissions mainly consist of gears and shafts, achieving speed and torque changes through different gear combinations. Automatic transmissions (AT), on the other hand, are composed of a torque converter, planetary gears, and a hydraulic control system, achieving speed and torque changes through hydraulic transmission and gear combinations.

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What are the necessary maintenance items for the Geely Emgrand at 20,000 kilometers?

Geely Emgrand's 20,000-kilometer maintenance includes changing the engine oil and oil filter, as well as the air conditioning filter. The maintenance also involves inspections and servicing of multiple systems such as the engine, transmission, air conditioning system, steering system, braking system, suspension, body, and tires, covering dozens of items. Below are the related introduction and functions of car maintenance. Content of minor maintenance: Minor maintenance generally refers to the routine maintenance performed at the intervals or mileage specified by the manufacturer to ensure vehicle performance. It mainly includes changing the engine oil and oil filter. Content of major maintenance: Major maintenance refers to the routine maintenance performed at the intervals or mileage specified by the manufacturer, which includes changing the engine oil, oil filter, air filter, and fuel filter. Purpose of car maintenance: The goal of car maintenance is to keep the vehicle clean and in good technical condition, eliminate potential issues, prevent failures, slow down the deterioration process, and extend the service life.

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Does the Dongfeng Fengxing Jingyi X5 car key have hidden functions?

Jingyi X5 remote key does have hidden functions. Concept of car key: A key refers to a tool for unlocking. A car key refers to a tool for switching cars on and off. Modern car keys all use chips, which are part of a magnetic chip system. The reading coil in the car's ignition lock cylinder reads the chip in the key; each chip contains fixed digital information. Advantages of remote keys: Remote keys allow doors to be unlocked and locked from a distance without inserting the key into the lock. The biggest advantage is that regardless of day or night, without needing to locate the keyhole, unlocking and locking can be done remotely and conveniently. The key emits a weak radio wave from the owner's vicinity, which is received by the car's antenna. The electronic control unit (ECU) identifies the signal code, and then the system's actuator (motor or electromagnetic coil) performs the lock/unlock action. This system mainly consists of two parts: the transmitter and the receiver.

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Which is the switch, off or on?

OFF and ON both belong to the switch keys. The OFF key means to turn off. The ON key means to turn on. A common example is the car light lever, where turning the knob to ON turns the lights on, and turning the knob to OFF turns the lights off. A button with a circled letter A and the word OFF below it is the auto start-stop function switch. Pressing it can turn the engine auto start-stop function on or off. ESPOFF refers to the electronic stability program off switch. When the ESPOFF switch is pressed, the ESPOFF icon will appear on the dashboard to remind the driver that "the ESP system has been turned off." When the car leaves the factory, the default setting is to turn on the ESP system when the ignition is on. Therefore, when the ESPOFF button is lit, it means this function is not activated; when the button is not lit, which is the default state of the vehicle, it means this function is activated. Most driving assistance systems in cars today are turned on automatically, so some buttons have a pattern with OFF written below. Pressing OFF means turning off the corresponding assistance system. There are some buttons in the car that are not recommended to be pressed randomly: The automatic handbrake button, especially while driving, can be very dangerous. The ESP button. ESP can only be turned off under the following circumstances: when the vehicle is stuck in mud or sand during off-roading; when aggressive driving is required (e.g., drifting); when the vehicle is equipped with snow chains. The drive mode button. On some rough and difficult roads, this button can be pressed. During normal driving, the default state is optimal. In fact, not only in cars are OFF and ON used as switches, but they also mean the same thing on other items. Many household appliances we use daily have these words.

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What Causes the Passat's Cooling Fan to Keep Running When Cold?

Passat's cooling fan may keep running when cold due to a faulty thermal switch, damaged fan relay, or defective air conditioning pressure switch. Working principle of the cooling fan: The cooling fan typically provides a noticeable temperature reduction of 4-15 degrees Celsius. After the temperature drops, air is rapidly exchanged, significantly improving air quality. When the cooling fan is activated, negative pressure is generated inside the cavity, drawing external air through high-efficiency evaporative cooling pads to lower the temperature. This transforms into cool fresh air that blows out from the air conditioning vents, with outlet temperatures reaching 5-15 degrees Celsius while consuming only 1 kilowatt-hour of electricity per hour. Function of the cooling fan: An automobile engine operating in high-temperature conditions must be properly cooled to maintain optimal working temperature, ensuring good engine performance, durability, and meeting exhaust emission requirements. The cooling system plays a crucial role in this process, primarily consisting of components such as the cooling fan, radiator, and thermostat.

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What are the maintenance items for a car with over 40,000 kilometers?

What is the function of accessory in a car?

How many liters of automatic transmission fluid does the Damy x5 require?

What are the necessary maintenance items for the Geely Emgrand at 20,000 kilometers?

Does the Dongfeng Fengxing Jingyi X5 car key have hidden functions?

Which is the switch, off or on?

What Causes the Passat's Cooling Fan to Keep Running When Cold?

What are the differences of the Mercedes-Benz C63 high-performance version?

Does the Corolla Need to Replace the Timing Belt?

What grade of gasoline should a BMW 328 use?

Does the Range Rover have a V12?