Difference Between Starter and Engine?

What does the ECO mode in Volkswagen Lavida mean?

ECO refers to the car's economical driving mode function. ECO is an English abbreviation formed by the combination of Ecology (environmental protection), Conservation (energy saving), and Optimization (power). The Eco mode is further divided into active eco driving mode and non-active eco driving mode. When the eco indicator light on the dashboard illuminates, it indicates that the car's economical mode has been activated. Eco mode is categorized into active and non-active types. The difference lies in the fact that the active type has its own dedicated button, allowing the driver to choose whether to activate it. When the driver presses the eco mode switch, the dashboard indicator light immediately turns on, and the vehicle automatically begins adjusting settings such as throttle opening, transmission shift logic, and air conditioning output power. The non-active eco mode does not have a dedicated button. When the eco indicator light on the dashboard illuminates, it serves merely as a reminder function. The eco system automatically evaluates your driving behavior. If your current driving operation achieves the optimal fuel supply, the dashboard will simultaneously display the eco indicator light. Most cars employ the active eco driving mode, meaning they have their own switch button. Therefore, during daily driving, the eco mode can be activated. However, it is unnecessary to enable the eco mode when the speed exceeds 120 km/h, during idle parking, in N/P gear, or in manual mode, especially when climbing hills. Doing so would fail to demonstrate the eco mode's fuel-saving characteristics and could also affect the vehicle's power. Additionally, the eco mode typically becomes ineffective under the following circumstances: When the vehicle speed exceeds 120 kilometers per hour, the car prioritizes speed, causing the eco mode to automatically deactivate. During idle parking or in N/P gear and manual mode, the eco mode may also become ineffective. When high torque output is required, such as when climbing a hill, the engine's computer prioritizes ensuring sufficient power to drive the vehicle, and the eco mode will not function in such scenarios.

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What is the working principle of an automotive air conditioning pressure switch?

Here is a detailed introduction to the working principle of an automotive air conditioning pressure switch: 1. High-pressure switch working principle: The high-pressure switch is installed in the high-pressure pipeline, usually mounted on the liquid receiver-drier, and connected in series with the compressor electromagnetic clutch circuit or the condenser fan circuit. When the system pressure is too high, the high-pressure switch activates, cutting off the clutch circuit or engaging the high-speed circuit of the cooling fan to prevent further pressure increase and avoid system damage. 2. Low-pressure switch working principle: The low-pressure switch is typically installed directly in the high-pressure pipeline with a threaded connection, connected in series with the electromagnetic clutch circuit. Its structure is similar to that of a normally open high-pressure switch. When the refrigerant pressure is normal, the moving contact closes the compressor electromagnetic clutch circuit; when the refrigerant pressure discharged by the compressor is too low, the low-pressure switch opens, cutting off the electromagnetic clutch circuit, and the compressor stops running to prevent damage. 3. Dual-pressure switch working principle: New air conditioning refrigeration systems combine the high and low-pressure switches into a single unit, known as a dual-pressure switch, mounted on the liquid receiver-drier. This reduces the number of pressure switches and interfaces, thereby minimizing the possibility of refrigerant leakage. When the high-pressure refrigerant pressure is normal (between 0.423–2.75 MPa), the metal diaphragm remains in a balanced position, and both the high-pressure contacts 14, 15 and low-pressure contacts 1, 2, 6, 7 are closed. Current flows from contacts 6, 7 to high-pressure contacts 14, 15 and then to contacts 1, 2. When the refrigerant pressure drops below 0.423 MPa, the spring pressure exceeds the refrigerant pressure, causing low-pressure contacts 1, 2 and 6, 7 to open, interrupting the current and stopping the compressor. When the pressure exceeds 2.75 MPa, the refrigerant pressure continues to push the metal diaphragm upward, moving the entire assembly to the top dead center and pushing the push pin 12 to separate the high-pressure moving contact 14 from the high-pressure stationary contact 15, cutting off the clutch circuit and stopping the compressor. When the high-pressure side pressure falls below 2.17 MPa, the metal diaphragm returns to its normal position, and the compressor resumes operation. 4. Triple-pressure switch working principle: The triple-pressure switch consists of a dual-pressure switch (high-pressure and low-pressure switches) and a medium-pressure switch, offering a more compact structure. It is installed in the high-pressure pipeline. When the pressure is too high or too low, the dual-pressure switch controls the compressor to stop. When the refrigerant pressure reaches a certain intermediate value, the medium-pressure switch controls the engagement of the condenser fan circuit.

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What Do You Need to Bring for the First Maintenance of a New Car?

Items required for the first maintenance include: driver's license; maintenance manual; warranty manual; owner's ID card; vehicle's driving license; vehicle registration book; vehicle purchase invoice, to be taken to the designated first maintenance facility for the vehicle's initial service. Important note: Schedule an appointment with the 4S store in advance. The first maintenance refers to the initial service after a new car has been driven, with the specific time varying by vehicle, typically after driving 5,000 kilometers or 6 months. It is essential to attend the first maintenance promptly, neither in advance nor delayed. The completion of the first maintenance marks the end of the car's break-in period, allowing it to be driven at standard loads and normal speeds as required by the vehicle. The timing for the first maintenance is calculated from the date of vehicle pickup. There are two indicator values for the first maintenance: mileage and time. The first indicator to be met will serve as the standard. First maintenance tasks include: changing the engine oil and oil filter, cleaning the air filter, checking various fluid levels for normalcy, inspecting the generator belt and wiper blades for damage, checking tire pressure for normalcy, and examining tires for damage or bulges. Time required: Completing all tasks takes approximately 2 hours. The most crucial aspect of a new car's first maintenance is changing the engine oil and oil filter. When changing the engine oil, the oil filter must also be replaced. The selection of engine oil must refer to the "Vehicle User and Maintenance Manual," as different vehicle models specify different oil grades. Maintenance precautions: Do not rinse the interior of the car body with water: Many people clean their cars during holidays, washing the exterior with water and scrubbing with a cloth. It's important to note that the interior of the car body should not be directly washed with water. If the floor mats are dirty, use a vacuum cleaner or remove them to clean with a brush and detergent, dry them, and then put them back. There are many holes under the rubber mats on the driver's floor. Water entering these areas will not dry out but will flow through the holes to parts like the gearbox, causing erosion and corrosion. The best practice is to vacuum clean and then wipe with a cloth to prevent water accumulation. Do not mix different brands of antifreeze: When the car's antifreeze is low, it is recommended to drain the antifreeze and add the same brand from the beginning. Since antifreeze brands differ, their chemical properties vary significantly. Different brands use different corrosion inhibitors. Mixing them can lead to unnecessary problems. Do not lubricate tire bolts and nuts: When the bolts on a moving car rust, they are often oiled to function properly again. To prevent rust on wheel bolts and nuts, some people apply lubricant, which introduces unnecessary risks to safe driving. At high speeds, bolts and nuts can easily loosen or even fall off, leading to driving malfunctions.

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How to Release the Handbrake on the Tiguan When It Won't Disengage?

Simply click the manual electronic brake once. If the vehicle has an auto-hold function, just press it to automatic mode, and no additional operation is needed. First, shift into P. If there is no slope, the electronic handbrake does not need to be engaged. If auto-hold is already activated, the handbrake will automatically release when the car is started again.

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What are the penalties for running a red light while driving in the wrong direction?

The "Road Traffic Safety Law" stipulates that motor vehicle drivers who violate road traffic safety laws and regulations regarding road traffic rules shall be given a warning or fined. If you run a red light while driving in the wrong direction, it constitutes driving against traffic on a regular road. According to the law, the offender will be fined and have 3 points deducted from their license.

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How to reset the maintenance wrench on Fengjun 7 pickup truck?

Turn on the ignition switch and adjust the mode to display instant fuel consumption status. Turn off the ignition switch, press and hold the mode button, then turn on the ignition switch and release the button. Press both the mode button and the left time adjustment button simultaneously.

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Difference Between Starter and Engine?

What does the ECO mode in Volkswagen Lavida mean?

What is the working principle of an automotive air conditioning pressure switch?

What Do You Need to Bring for the First Maintenance of a New Car?

How to Release the Handbrake on the Tiguan When It Won't Disengage?

What are the penalties for running a red light while driving in the wrong direction?

How to reset the maintenance wrench on Fengjun 7 pickup truck?

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