Is It Illegal to Replace Car Lights?

What maintenance items are included in a 30,000-kilometer major service?

For a 30,000-kilometer vehicle maintenance, the service items include oil change, oil filter replacement, air filter replacement, fuel filter replacement, throttle body cleaning, spark plug replacement, etc. Below is a detailed introduction: 1. Engine oil and four filters: The four filters in engine oil maintenance include: oil filter, air filter, fuel filter, and cabin air filter. We know that the oil filter needs to be replaced every maintenance, while the air filter is recommended to be replaced every 10,000–15,000 kilometers, and the fuel filter is recommended to be replaced every 30,000 kilometers. The cabin air filter is recommended to be replaced every six months. 2. Throttle body cleaning: Throttle body cleaning is not necessary before 30,000 kilometers. After prolonged intake, the throttle body accumulates a lot of carbon deposits at the throttle opening, leading to reduced airflow. The vehicle may exhibit slight idle instability, idle vibration, and poor acceleration, indirectly increasing fuel consumption. At this point, we should inspect components like the throttle body and spark plugs that may cause these issues. 3. Spark plugs: Spark plugs should be replaced at 30,000 kilometers. Although spark plugs at 30,000 kilometers have not completely lost their ignition performance, their ignition capability has significantly degraded. Reduced ignition performance directly affects idle vibration, cylinder misfires, and poor acceleration. The decline in ignition performance increases engine load, which is also a factor affecting fuel consumption. 4. Air conditioning cleaning: Air conditioning cleaning removes dust and dirt from the AC ducts and provides a sterilizing effect. This service is optional.

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What are the systems that make up the chassis?

The chassis consists of four major systems: the transmission system, steering system, braking system, and running gear system. Here is a detailed introduction to the four major systems of an automobile chassis: Transmission System: The function of the transmission system is to transmit the engine's power to the driving wheels. The composition of the chassis varies slightly depending on the type of vehicle. For example, in trucks and some sedans, the chassis typically includes the clutch, manual transmission, universal drive assembly, and drive axle. However, modern sedans increasingly use automatic transmissions, where the chassis consists of the automatic transmission, universal drive assembly, and drive axle—replacing the clutch and manual transmission. For off-road vehicles (including SUVs, or sport utility vehicles), the chassis also includes a transfer case. Running Gear System: The function of the running gear system is to support and install various automotive components and assemblies, transmit and withstand loads from both inside and outside the vehicle, ensuring normal operation. It mainly consists of the frame (or body), axles, suspension, and wheels. Steering System: The function of the steering system is to ensure the vehicle can move in the direction selected by the driver. It primarily includes the steering control mechanism, steering gear, and steering linkage. Modern vehicles commonly use power steering systems. Braking System: The function of the braking system is to decelerate the vehicle, bring it to a stop, and ensure reliable parking. The automotive braking system generally includes two independent systems: the service braking system and the parking braking system. Each braking system consists of brakes and braking transmission mechanisms. Modern vehicles' service braking systems are typically equipped with an anti-lock braking system (ABS).

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Is the first maintenance of a new car required within three months?

The first maintenance of a car is not necessarily required within three months; it is based on whichever comes first between three months or 5,000 kilometers. Below are the items related to the first maintenance of a car: 1. Replacement: Replace the engine oil, oil filter, and clean the air filter; check whether the generator belt and wiper blades are damaged. 2. Inspection: Check whether the levels of various fluids are normal. 3. Tire pressure: Check whether the tire pressure is normal and whether there is uneven tire wear, bulging, or damage. 4. Chassis: Inspect the car’s chassis, including checking for scratches on the brake pads, brake discs, connecting rods, ball joints, and CV joints. 5. Switch operation: Check whether all the switches and lights in the car are working properly.

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What to Do When a Car Develops Quality Issues After the Warranty Period?

Automobile manufacturers generally set two conditions: time and mileage. During the warranty period: If the user operates the vehicle under specified conditions, and the vehicle experiences failures or component damage due to quality issues, the manufacturer provides free repairs or replacement of corresponding parts. According to the regulations of the General Administration of Quality Supervision, Inspection and Quarantine: If the same fault is repaired more than 5 times, or the cumulative repairs exceed 5 times, the consumer can request a vehicle replacement. If a family car product experiences steering system failure, brake system failure, body cracking, or fuel leakage, and the consumer chooses to replace or return the product, the seller is responsible for providing a free replacement or refund.

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What is an automotive valve body?

The valve body is a component inside the transmission, used for shifting between high and low gears. The transmission valve body is located above the transmission oil pan and becomes visible once the oil pan is removed. When the vehicle speed reaches a certain gear speed, the transmission oil pushes the valve body to automatically shift up or down. Below are specific details about the transmission valve body: Working Principle: When the vehicle speed reaches a certain gear speed, the hydraulic oil pushes the valve body to automatically shift to that gear. The automatic transmission can automatically change the transmission ratio based on engine load and vehicle speed, providing the car with good power performance and fuel economy while reducing engine emissions. Function and Composition: Automatic transmissions are easy to operate and can significantly improve driving safety and reliability in congested traffic. An electronically controlled automatic transmission typically consists of five parts: a torque converter, planetary gear system, shift actuator, hydraulic control system, and electronic control system.

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Why does the windshield feel oily and not clean when wiped?

The windshield feels oily and not clean when wiped because exhaust fumes form an oily film on the glass, which cannot be cleaned by the wipers alone. Cleaning the glass: Wet the windshield with water, apply toothpaste to the left half, scrub the windshield with a sponge, rinse with clean water, then use dishwashing liquid to clean the right half of the windshield, scrub with a sponge, and rinse with clean water. Replacing the wipers: Generally, when the glass is not clean, the reason can be attributed to the wipers. Or the glass itself is dirty. During driving, dust in the air and exhaust fumes from the vehicle form an oily film, which cannot be cleaned by the wipers alone. At this time, it is necessary to use glass cleaner or toothpaste for cleaning, scrubbing with a sponge in a circular motion with a little force.

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Is It Illegal to Replace Car Lights?

What maintenance items are included in a 30,000-kilometer major service?

What are the systems that make up the chassis?

Is the first maintenance of a new car required within three months?

What to Do When a Car Develops Quality Issues After the Warranty Period?

What is an automotive valve body?

Why does the windshield feel oily and not clean when wiped?

Can Corroded Car Glass Be Repaired?

What Are the Causes of Odors in Car Air Conditioning? How to Eliminate Them?

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