What are the maintenance items?

What is the Principle of Electric Rearview Mirrors?

Principle of electric rearview mirrors: The rearview mirror is equipped with two miniature motors. By using the control button installed on the dashboard, the motors can drive the rearview mirror to move up, down, left, and right. Structure of electric rearview mirrors: Centered on a pivot, it consists of two independent micro motors that allow the rearview mirror to flexibly adjust its position in both vertical and horizontal directions, along with permanent magnets and Hall ICs. The rearview mirror is controlled by a single switch, enabling multi-directional movement, where one micro motor can operate individually or both can work simultaneously. Nowadays, in mid-to-high-end vehicles, most rearview mirrors are foldable. The folding function is divided into two types: one is manual, requiring the driver to reach out the window or exit the vehicle to fold the mirror, a type that is now rarely seen; the other is electric, which is more common. Its advantage is that the driver can fold the mirror from inside the car, and the mirror will automatically unfold when the vehicle is started.

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What Does a Car's First Maintenance Include?

Car's first maintenance includes: 1. Changing the engine oil and oil filter, and cleaning the air filter; 2. Checking whether the coolant level is in the normal state; 3. Inspecting the car's brakes and whether there are any scratches on the chassis components; 4. Checking if the power steering fluid level is normal and whether there are any oil leaks at the oil pipe connections; 5. Examining the condition of the generator, air conditioning, water pump, and the aging and tension of the belts; 6. Checking the tire pressure and wear condition; 7. Verifying whether the car's exhaust emissions meet the standards. Car maintenance refers to the preventive work of regularly inspecting, cleaning, supplying, lubricating, adjusting, or replacing certain parts of the car, also known as car servicing.

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What are the common faults of oxygen sensors?

The common faults of oxygen sensors include ceramic breakage, filament burnout, and wire disconnection. Once these faults occur, the computer of the electronic fuel injection system cannot obtain the oxygen concentration information in the exhaust pipe, leading to increased engine fuel consumption and exhaust pollution, as well as engine issues such as unstable idle, misfire, and surging. Therefore, it is necessary to promptly troubleshoot or replace the faulty sensor. The automotive oxygen sensor is a critical feedback sensor in the fuel injection engine control system, playing a key role in controlling vehicle exhaust emissions, reducing environmental pollution, and improving the combustion quality of the engine fuel. The zirconia element in the oxygen sensor acts similarly to an electrolyte. Its working principle is based on utilizing the oxygen concentration difference between the inside and outside of the zirconia under certain conditions to generate a potential difference. The greater the concentration difference, the larger the potential difference.

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What does it mean when the TC light comes on in a Buick?

When the TC light comes on in a Buick Excelle, it indicates a malfunction in the vehicle's traction control system. It is recommended that the owner take the car to a repair shop for inspection as soon as possible. There are many reasons why the TC light may come on, and the specific cause can only be determined by checking the fault codes at a 4S dealership. Only then can the issue be repaired based on the definition of the fault codes. Common causes for the TC light to come on include: 1. Solenoid valve malfunction; 2. Dirty engine oil clogging the solenoid valve filter; 3. Wear and tear on the actuator gears and impeller leading to oil pressure leakage and triggering the alarm; 4. Dirty throttle body with an opening reaching 20%, causing the engine computer to mistakenly identify a TC fault.

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What is the difference between tire pressure display and tire pressure warning?

Tire pressure monitoring is the real-time automatic monitoring of tire pressure during vehicle operation, with alerts for tire leaks and low pressure to ensure driving safety. Tire pressure display refers to the transmission of tire pressure data signals from monitoring sensors to the central control screen or a tire pressure inspection instrument for display. Below are the specific differences: 1. Different principles: Tire pressure display is part of active tire pressure monitoring, meaning it shows the real-time pressure values of all four tires on the central console display. Tire pressure warning is part of passive tire pressure monitoring, triggering an alert when pressure is too high or too low. 2. Different functionalities: Tire pressure warning alerts the driver when pressure is insufficient or excessive, serving as a warning without displaying the actual pressure value. Tire pressure display allows the driver to see real-time pressure values directly, enabling proactive measures.

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What are the differences between DOT3 and DOT4 brake fluids?

Here are the differences between DOT3 and DOT4 brake fluids: 1. DOT3: Generally alcohol-ether type. The chemical composition of alcohol-ether type is low-polyethylene glycol or propylene glycol. Low-polyethylene glycol or propylene glycol has strong hydrophilicity, so its water content will gradually increase during use or storage. Since the boiling point of brake fluid decreases as the water content increases, its braking performance will decline accordingly. When you find that you need to step on the brake pedal harder to brake, a very likely reason is that the water content of the brake fluid is too high. Brake fluid is generally replaced every two years. 2. DOT4: Generally ester type. The ester type is based on the alcohol-ether type with the addition of a large amount of borate ester. Borate ester is formed by the esterification reaction of low-polyethylene glycol or propylene glycol with boric acid. Borate ester has a higher boiling point than low-polyethylene glycol or propylene glycol, so its braking performance is better. Borate ester also has strong moisture resistance, which can decompose the absorbed water, thereby slowing down the decrease in boiling point caused by water absorption. Therefore, the ester type has better performance than the alcohol-ether type and is also more expensive.

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What are the maintenance items?

What is the Principle of Electric Rearview Mirrors?

What Does a Car's First Maintenance Include?

What are the common faults of oxygen sensors?

What does it mean when the TC light comes on in a Buick?

What is the difference between tire pressure display and tire pressure warning?

What are the differences between DOT3 and DOT4 brake fluids?

What is the wheelbase of the BMW 3 Series?

What are the differences between the Roewe RX5 MAX and RX5?

How Many Cylinders Does the FAW Bestune T77 Engine Have?

What is the fuel tank capacity of FAW Besturn X40?